allow `#[pymodule(...)]` to accept all relevant `#[pyo3(...)]` options (#4330 )

Prevent building in GIL-less environment (#4327 )
* Prevent building in GIL-less environment * Add change log * add "yet" to phrasing * Add testing to build script * add link to issue * Fix formatting issues --------- Co-authored-by: David Hewitt <mail@davidhewitt.dev>
2024-07-10 22:38:38 +00:00 · 2024-07-10 18:39:39 +00:00 · 2024-07-10 14:18:13 +00:00 · 2024-07-10 13:38:30 +00:00 · 2024-07-10 12:30:01 +00:00 · 2024-07-10 11:36:31 +00:00
111 changed files with 693 additions and 1695 deletions
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@ -16,6 +16,9 @@ on:
      rust-target:
        required: true
        type: string
+      MSRV:
+        required: true
+        type: string

 jobs:
  build:
@ -51,9 +54,9 @@ jobs:
        name: Prepare LD_LIBRARY_PATH (Ubuntu only)
        run: echo LD_LIBRARY_PATH=${pythonLocation}/lib >> $GITHUB_ENV

-      - if: inputs.rust == '1.63.0'
-        name: Prepare minimal package versions (MSRV only)
-        run: nox -s set-minimal-package-versions
+      - if: inputs.rust == inputs.MSRV
+        name: Prepare MSRV package versions
+        run: nox -s set-msrv-package-versions

      - if: inputs.rust != 'stable'
        name: Ignore changed error messages when using trybuild
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@ -31,6 +31,18 @@ jobs:
      - name: Check rust formatting (rustfmt)
        run: nox -s rustfmt

+  resolve:
+    runs-on: ubuntu-latest
+    outputs:
+      MSRV: ${{ steps.resolve-msrv.outputs.MSRV }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+      - name: resolve MSRV
+        id: resolve-msrv
+        run:
+          echo MSRV=`python -c 'import tomllib; print(tomllib.load(open("Cargo.toml", "rb"))["package"]["rust-version"])'` >> $GITHUB_OUTPUT
+
  semver-checks:
    if: github.ref != 'refs/heads/main'
    needs: [fmt]
@ -41,13 +53,13 @@ jobs:
      - uses: obi1kenobi/cargo-semver-checks-action@v2

  check-msrv:
-    needs: [fmt]
+    needs: [fmt, resolve]
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@master
        with:
-          toolchain: 1.63.0
+          toolchain: ${{ needs.resolve.outputs.MSRV }}
          targets: x86_64-unknown-linux-gnu
          components: rust-src
      - uses: actions/setup-python@v5
@ -57,9 +69,11 @@ jobs:
        with:
          save-if: ${{ github.event_name != 'merge_group' }}
      - run: python -m pip install --upgrade pip && pip install nox
-      - name: Prepare minimal package versions
-        run: nox -s set-minimal-package-versions
-      - run: nox -s check-all
+      # This is a smoke test to confirm that CI will run on MSRV (including dev dependencies)
+      - name: Check with MSRV package versions
+        run: |
+          nox -s set-msrv-package-versions
+          nox -s check-all

    env:
      CARGO_BUILD_TARGET: x86_64-unknown-linux-gnu
@ -141,7 +155,7 @@ jobs:
  build-pr:
    if: ${{ !contains(github.event.pull_request.labels.*.name, 'CI-build-full') && github.event_name == 'pull_request' }}
    name: python${{ matrix.python-version }}-${{ matrix.platform.python-architecture }} ${{ matrix.platform.os }} rust-${{ matrix.rust }}
-    needs: [fmt]
+    needs: [fmt, resolve]
    uses: ./.github/workflows/build.yml
    with:
      os: ${{ matrix.platform.os }}
@ -149,6 +163,7 @@ jobs:
      python-architecture: ${{ matrix.platform.python-architecture }}
      rust: ${{ matrix.rust }}
      rust-target: ${{ matrix.platform.rust-target }}
+      MSRV: ${{ needs.resolve.outputs.MSRV }}
    secrets: inherit
    strategy:
      # If one platform fails, allow the rest to keep testing if `CI-no-fail-fast` label is present
@ -198,7 +213,7 @@ jobs:
  build-full:
    if: ${{ contains(github.event.pull_request.labels.*.name, 'CI-build-full') || github.event_name != 'pull_request' }}
    name: python${{ matrix.python-version }}-${{ matrix.platform.python-architecture }} ${{ matrix.platform.os }} rust-${{ matrix.rust }}
-    needs: [fmt]
+    needs: [fmt, resolve]
    uses: ./.github/workflows/build.yml
    with:
      os: ${{ matrix.platform.os }}
@ -206,6 +221,7 @@ jobs:
      python-architecture: ${{ matrix.platform.python-architecture }}
      rust: ${{ matrix.rust }}
      rust-target: ${{ matrix.platform.rust-target }}
+      MSRV: ${{ needs.resolve.outputs.MSRV }}
    secrets: inherit
    strategy:
      # If one platform fails, allow the rest to keep testing if `CI-no-fail-fast` label is present
@ -251,7 +267,7 @@ jobs:
          ]
        include:
          # Test minimal supported Rust version
-          - rust: 1.63.0
+          - rust: ${{ needs.resolve.outputs.MSRV }}
            python-version: "3.12"
            platform:
              {
@ -487,21 +503,31 @@ jobs:
      - run: python3 -m nox -s test-version-limits

  check-feature-powerset:
-    needs: [fmt]
+    needs: [fmt, resolve]
    if: ${{ contains(github.event.pull_request.labels.*.name, 'CI-build-full') || github.event_name != 'pull_request' }}
    runs-on: ubuntu-latest
+    name: check-feature-powerset ${{ matrix.rust }}
+    strategy:
+      # run on stable and MSRV to check that all combinations of features are expected to build fine on our supported
+      # range of compilers
+      matrix:
+        rust: ["stable"]
+        include:
+          - rust: ${{ needs.resolve.outputs.MSRV }}
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-python@v5
      - uses: Swatinem/rust-cache@v2
        with:
          save-if: ${{ github.event_name != 'merge_group' }}
-      - uses: dtolnay/rust-toolchain@stable
+      - uses: dtolnay/rust-toolchain@master
        with:
-          components: rust-src
-      - uses: taiki-e/install-action@cargo-hack
+          toolchain: stable
+      - uses: taiki-e/install-action@v2
+        with:
+          tool: cargo-hack,cargo-minimal-versions
      - run: python3 -m pip install --upgrade pip && pip install nox
-      - run: python3 -m nox -s check-feature-powerset
+      - run: python3 -m nox -s check-feature-powerset -- ${{ matrix.rust != 'stable' && 'minimal-versions' || '' }}

  test-cross-compilation:
    needs: [fmt]
--- a/.github/workflows/gh-pages.yml
+++ b/.github/workflows/gh-pages.yml
@ -22,7 +22,7 @@ jobs:
      tag_name: ${{ steps.prepare_tag.outputs.tag_name }}
    steps:
      - uses: actions/checkout@v4
-
+      - uses: actions/setup-python@v5
      - uses: dtolnay/rust-toolchain@nightly

      - name: Setup mdBook
--- a/Cargo.toml
+++ b/Cargo.toml
@ -1,6 +1,6 @@
 [package]
 name = "pyo3"
-version = "0.22.1"
+version = "0.23.0-dev"
 description = "Bindings to Python interpreter"
 authors = ["PyO3 Project and Contributors <https://github.com/PyO3>"]
 readme = "README.md"
@ -18,13 +18,13 @@ rust-version = "1.63"
 cfg-if = "1.0"
 libc = "0.2.62"
 memoffset = "0.9"
-once_cell = "1.13.0"
+once_cell = "1.13"

 # ffi bindings to the python interpreter, split into a separate crate so they can be used independently
-pyo3-ffi = { path = "pyo3-ffi", version = "=0.22.1" }
+pyo3-ffi = { path = "pyo3-ffi", version = "=0.23.0-dev" }

 # support crates for macros feature
-pyo3-macros = { path = "pyo3-macros", version = "=0.22.1", optional = true }
+pyo3-macros = { path = "pyo3-macros", version = "=0.23.0-dev", optional = true }
 indoc = { version = "2.0.1", optional = true }
 unindent = { version = "0.2.1", optional = true }

@ -32,17 +32,17 @@ unindent = { version = "0.2.1", optional = true }
 inventory = { version = "0.3.0", optional = true }

 # crate integrations that can be added using the eponymous features
-anyhow = { version = "1.0", optional = true }
+anyhow = { version = "1.0.1", optional = true }
 chrono = { version = "0.4.25", default-features = false, optional = true }
 chrono-tz = { version = ">= 0.6, < 0.10", default-features = false, optional = true }
 either = { version = "1.9", optional = true }
 eyre = { version = ">= 0.4, < 0.7", optional = true }
 hashbrown = { version = ">= 0.9, < 0.15", optional = true }
 indexmap = { version = ">= 1.6, < 3", optional = true }
-num-bigint = { version = "0.4", optional = true }
+num-bigint = { version = "0.4.2", optional = true }
 num-complex = { version = ">= 0.2, < 0.5", optional = true }
 num-rational = {version = "0.4.1", optional = true }
-rust_decimal = { version = "1.0.0", default-features = false, optional = true }
+rust_decimal = { version = "1.15", default-features = false, optional = true }
 serde = { version = "1.0", optional = true }
 smallvec = { version = "1.0", optional = true }

@ -63,7 +63,7 @@ rayon = "1.6.1"
 futures = "0.3.28"

 [build-dependencies]
-pyo3-build-config = { path = "pyo3-build-config", version = "=0.22.1", features = ["resolve-config"] }
+pyo3-build-config = { path = "pyo3-build-config", version = "=0.23.0-dev", features = ["resolve-config"] }

 [features]
 default = ["macros"]
@ -112,9 +112,6 @@ py-clone = []
 # Optimizes PyObject to Vec conversion and so on.
 nightly = []

-# Disables the checks for use in subinterpreters.
-unsafe-allow-subinterpreters = []
-
 # Activates all additional features
 # This is mostly intended for testing purposes - activating *all* of these isn't particularly useful.
 full = [
--- a/README.md
+++ b/README.md
@ -193,6 +193,7 @@ about this topic.
 - [fastuuid](https://github.com/thedrow/fastuuid/) _Python bindings to Rust's UUID library._
 - [feos](https://github.com/feos-org/feos) _Lightning fast thermodynamic modeling in Rust with fully developed Python interface._
 - [forust](https://github.com/jinlow/forust) _A lightweight gradient boosted decision tree library written in Rust._
+- [granian](https://github.com/emmett-framework/granian) _A Rust HTTP server for Python applications._
 - [greptimedb](https://github.com/GreptimeTeam/greptimedb/tree/main/src/script) _Support [Python scripting](https://docs.greptime.com/user-guide/python-scripts/overview) in the database_
 - [haem](https://github.com/BooleanCat/haem) _A Python library for working on Bioinformatics problems._
 - [html-py-ever](https://github.com/PyO3/setuptools-rust/tree/main/examples/html-py-ever) _Using [html5ever](https://github.com/servo/html5ever) through [kuchiki](https://github.com/kuchiki-rs/kuchiki) to speed up html parsing and css-selecting._
--- a/examples/decorator/.template/pre-script.rhai
+++ b/examples/decorator/.template/pre-script.rhai
@ -1,4 +1,4 @@
-variable::set("PYO3_VERSION", "0.22.1");
+variable::set("PYO3_VERSION", "0.23.0-dev");
 file::rename(".template/Cargo.toml", "Cargo.toml");
 file::rename(".template/pyproject.toml", "pyproject.toml");
 file::delete(".template");
--- a/examples/getitem/src/lib.rs
+++ b/examples/getitem/src/lib.rs
@ -75,8 +75,7 @@ impl ExampleContainer {
    }
 }

-#[pymodule]
-#[pyo3(name = "getitem")]
+#[pymodule(name = "getitem")]
 fn example(m: &Bound<'_, PyModule>) -> PyResult<()> {
    // ? -https://github.com/PyO3/maturin/issues/475
    m.add_class::<ExampleContainer>()?;
--- a/examples/maturin-starter/.template/pre-script.rhai
+++ b/examples/maturin-starter/.template/pre-script.rhai
@ -1,4 +1,4 @@
-variable::set("PYO3_VERSION", "0.22.1");
+variable::set("PYO3_VERSION", "0.23.0-dev");
 file::rename(".template/Cargo.toml", "Cargo.toml");
 file::rename(".template/pyproject.toml", "pyproject.toml");
 file::delete(".template");
--- a/examples/plugin/.template/pre-script.rhai
+++ b/examples/plugin/.template/pre-script.rhai
@ -1,4 +1,4 @@
-variable::set("PYO3_VERSION", "0.22.1");
+variable::set("PYO3_VERSION", "0.23.0-dev");
 file::rename(".template/Cargo.toml", "Cargo.toml");
 file::rename(".template/plugin_api/Cargo.toml", "plugin_api/Cargo.toml");
 file::delete(".template");
--- a/examples/setuptools-rust-starter/.template/pre-script.rhai
+++ b/examples/setuptools-rust-starter/.template/pre-script.rhai
@ -1,4 +1,4 @@
-variable::set("PYO3_VERSION", "0.22.1");
+variable::set("PYO3_VERSION", "0.23.0-dev");
 file::rename(".template/Cargo.toml", "Cargo.toml");
 file::rename(".template/setup.cfg", "setup.cfg");
 file::delete(".template");
--- a/examples/word-count/.template/pre-script.rhai
+++ b/examples/word-count/.template/pre-script.rhai
@ -1,4 +1,4 @@
-variable::set("PYO3_VERSION", "0.22.1");
+variable::set("PYO3_VERSION", "0.23.0-dev");
 file::rename(".template/Cargo.toml", "Cargo.toml");
 file::rename(".template/pyproject.toml", "pyproject.toml");
 file::delete(".template");
--- a/guide/src/building-and-distribution.md
+++ b/guide/src/building-and-distribution.md
@ -163,7 +163,7 @@ fn main() {

 For more discussion on and workarounds for MacOS linking problems [see this issue](https://github.com/PyO3/pyo3/issues/1800#issuecomment-906786649).

-Finally, don't forget that on MacOS the `extension-module` feature will cause `cargo test` to fail without the `--no-default-features` flag (see [the FAQ](https://pyo3.rs/main/faq.html#i-cant-run-cargo-test-im-having-linker-issues-like-symbol-not-found-or-undefined-reference-to-_pyexc_systemerror)).
+Finally, don't forget that on MacOS the `extension-module` feature will cause `cargo test` to fail without the `--no-default-features` flag (see [the FAQ](https://pyo3.rs/main/faq.html#i-cant-run-cargo-test-or-i-cant-build-in-a-cargo-workspace-im-having-linker-issues-like-symbol-not-found-or-undefined-reference-to-_pyexc_systemerror)).

 ### The `extension-module` feature

--- a/guide/src/ecosystem/async-await.md
+++ b/guide/src/ecosystem/async-await.md
@ -129,9 +129,7 @@ fn rust_sleep(py: Python<'_>) -> PyResult<&Bound<'_, PyAny>> {

 #[pymodule]
 fn my_async_module(m: &Bound<'_, PyModule>) -> PyResult<()> {
-    m.add_function(wrap_pyfunction!(rust_sleep, m)?)?;
-
-    Ok(())
+    m.add_function(wrap_pyfunction!(rust_sleep, m)?)
 }
 ```

@ -152,8 +150,7 @@ fn rust_sleep(py: Python<'_>) -> PyResult<&Bound<'_, PyAny>>> {

 #[pymodule]
 fn my_async_module(m: &Bound<'_, PyModule>) -> PyResult<()> {
-    m.add_function(wrap_pyfunction!(rust_sleep, m)?)?;
-    Ok(())
+    m.add_function(wrap_pyfunction!(rust_sleep, m)?)
 }
 ```

@ -257,7 +254,7 @@ async def py_sleep():
 await_coro(py_sleep())
 ```

-If for you wanted to pass a callable function to the `#[pyfunction]` instead, (i.e. the last line becomes `await_coro(py_sleep))`, then the above example needs to be tweaked to first call the callable to get the coroutine:
+If you wanted to pass a callable function to the `#[pyfunction]` instead, (i.e. the last line becomes `await_coro(py_sleep))`, then the above example needs to be tweaked to first call the callable to get the coroutine:

 ```rust
 #[pyfunction]
--- a/guide/src/function.md
+++ b/guide/src/function.md
@ -14,8 +14,7 @@ fn double(x: usize) -> usize {

 #[pymodule]
 fn my_extension(m: &Bound<'_, PyModule>) -> PyResult<()> {
-    m.add_function(wrap_pyfunction!(double, m)?)?;
-    Ok(())
+    m.add_function(wrap_pyfunction!(double, m)?)
 }
 ```

@ -56,8 +55,7 @@ The `#[pyo3]` attribute can be used to modify properties of the generated Python

    #[pymodule]
    fn module_with_functions(m: &Bound<'_, PyModule>) -> PyResult<()> {
-        m.add_function(wrap_pyfunction!(no_args_py, m)?)?;
-        Ok(())
+        m.add_function(wrap_pyfunction!(no_args_py, m)?)
    }

    # Python::with_gil(|py| {
@ -113,8 +111,7 @@ The `#[pyo3]` attribute can be used on individual arguments to modify properties
    use pyo3::prelude::*;

    fn get_length(obj: &Bound<'_, PyAny>) -> PyResult<usize> {
-        let length = obj.len()?;
-        Ok(length)
+        obj.len()
    }

    #[pyfunction]
@ -204,8 +201,7 @@ fn my_extension(m: &Bound<'_, PyModule>) -> PyResult<()> {
        x * 2
    }

-    m.add_function(wrap_pyfunction!(double, m)?)?;
-    Ok(())
+    m.add_function(wrap_pyfunction!(double, m)?)
 }
 ```

--- a/guide/src/function/signature.md
+++ b/guide/src/function/signature.md
@ -22,8 +22,7 @@ fn num_kwds(kwds: Option<&Bound<'_, PyDict>>) -> usize {

 #[pymodule]
 fn module_with_functions(m: &Bound<'_, PyModule>) -> PyResult<()> {
-    m.add_function(wrap_pyfunction!(num_kwds, m)?).unwrap();
-    Ok(())
+    m.add_function(wrap_pyfunction!(num_kwds, m)?)
 }
 ```

--- a/guide/src/getting-started.md
+++ b/guide/src/getting-started.md
@ -159,8 +159,7 @@ fn sum_as_string(a: usize, b: usize) -> PyResult<String> {
 /// import the module.
 #[pymodule]
 fn pyo3_example(m: &Bound<'_, PyModule>) -> PyResult<()> {
-    m.add_function(wrap_pyfunction!(sum_as_string, m)?)?;
-    Ok(())
+    m.add_function(wrap_pyfunction!(sum_as_string, m)?)
 }
 ```

--- a/guide/src/migration.md
+++ b/guide/src/migration.md
@ -5,6 +5,15 @@ For a detailed list of all changes, see the [CHANGELOG](changelog.md).

 ## from 0.21.* to 0.22

+### Deprecation of `gil-refs` feature continues
+<details open>
+<summary><small>Click to expand</small></summary>
+
+Following the introduction of the "Bound" API in PyO3 0.21 and the planned removal of the "GIL Refs" API, all functionality related to GIL Refs is now gated behind the `gil-refs` feature and emits a deprecation warning on use.
+
+See <a href="#from-021-to-022">the 0.21 migration entry</a> for help upgrading.
+</details>
+
 ### Deprecation of implicit default for trailing optional arguments
 <details open>
 <summary><small>Click to expand</small></summary>
@ -235,8 +244,7 @@ The `__next__` and `__anext__` magic methods can now return any type convertible

 Starting with an implementation of a Python iterator using `IterNextOutput`, e.g.

-```rust
-#![allow(deprecated)]
+```rust,ignore
 use pyo3::prelude::*;
 use pyo3::iter::IterNextOutput;

@ -529,6 +537,7 @@ assert_eq!(&*name, "list");
 # }
 # Python::with_gil(example).unwrap();
 ```
+</details>

 ## from 0.19.* to 0.20

--- a/guide/src/module.md
+++ b/guide/src/module.md
@ -13,8 +13,7 @@ fn double(x: usize) -> usize {
 /// This module is implemented in Rust.
 #[pymodule]
 fn my_extension(m: &Bound<'_, PyModule>) -> PyResult<()> {
-    m.add_function(wrap_pyfunction!(double, m)?)?;
-    Ok(())
+    m.add_function(wrap_pyfunction!(double, m)?)
 }
 ```

@ -32,11 +31,9 @@ fn double(x: usize) -> usize {
    x * 2
 }

-#[pymodule]
-#[pyo3(name = "custom_name")]
+#[pymodule(name = "custom_name")]
 fn my_extension(m: &Bound<'_, PyModule>) -> PyResult<()> {
-    m.add_function(wrap_pyfunction!(double, m)?)?;
-    Ok(())
+    m.add_function(wrap_pyfunction!(double, m)?)
 }
 ```

@ -80,8 +77,7 @@ fn parent_module(m: &Bound<'_, PyModule>) -> PyResult<()> {
 fn register_child_module(parent_module: &Bound<'_, PyModule>) -> PyResult<()> {
    let child_module = PyModule::new_bound(parent_module.py(), "child_module")?;
    child_module.add_function(wrap_pyfunction!(func, &child_module)?)?;
-    parent_module.add_submodule(&child_module)?;
-    Ok(())
+    parent_module.add_submodule(&child_module)
 }

 #[pyfunction]
@ -143,8 +139,7 @@ mod my_extension {
    #[pymodule_init]
    fn init(m: &Bound<'_, PyModule>) -> PyResult<()> {
        // Arbitrary code to run at the module initialization
-        m.add("double2", m.getattr("double")?)?;
-        Ok(())
+        m.add("double2", m.getattr("double")?)
    }
 }
 # }
@ -155,7 +150,6 @@ For nested modules, the name of the parent module is automatically added.
 In the following example, the `Unit` class will have for `module` `my_extension.submodule` because it is properly nested
 but the `Ext` class will have for `module` the default `builtins` because it not nested.

-You can provide the `submodule` argument to `pymodule()` for modules that are not top-level modules.
 ```rust
 # mod declarative_module_module_attr_test {
 use pyo3::prelude::*;
@ -170,7 +164,7 @@ mod my_extension {
    #[pymodule_export]
    use super::Ext;

-    #[pymodule(submodule)]
+    #[pymodule]
    mod submodule {
        use super::*;
        // This is a submodule
@ -183,3 +177,4 @@ mod my_extension {
 ```
 It is possible to customize the `module` value for a `#[pymodule]` with the `#[pyo3(module = "MY_MODULE")]` option.

+You can provide the `submodule` argument to `pymodule()` for modules that are not top-level modules -- it is automatically set for modules nested inside of a `#[pymodule]`.
--- a/newsfragments/4308.changed.md
+++ b/newsfragments/4308.changed.md
@ -0,0 +1 @@
+Nested declarative `#[pymodule]` are automatically treated as submodules (no `PyInit_` entrypoint is created)
--- a/newsfragments/4322.changed.md
+++ b/newsfragments/4322.changed.md
@ -0,0 +1 @@
+Deprecate `PyAnyMethods::is_ellipsis` (`Py::is_ellpsis` was deprecated in PyO3 0.20).
--- a/newsfragments/4322.removed.md
+++ b/newsfragments/4322.removed.md
@ -0,0 +1 @@
+Remove all functionality deprecated in PyO3 0.20.
--- a/newsfragments/4323.removed.md
+++ b/newsfragments/4323.removed.md
@ -0,0 +1 @@
+Remove all functionality deprecated in PyO3 0.21.
--- a/newsfragments/4327.packaging.md
+++ b/newsfragments/4327.packaging.md
@ -0,0 +1,3 @@
+This PR lets PyO3 checks `Py_GIL_DISABLED` build flag and prevents `pyo3-ffi` crate building against GIL-less Python,
+unless
+explicitly opt using the `UNSAFE_PYO3_BUILD_FREE_THREADED` environment flag.
--- a/newsfragments/4328.fixed.md
+++ b/newsfragments/4328.fixed.md
@ -0,0 +1 @@
+Fix compile failure in declarative `#[pymodule]` under presence of `#![no_implicit_prelude]`.
--- a/newsfragments/4330.changed.md
+++ b/newsfragments/4330.changed.md
@ -0,0 +1 @@
+`#[pymodule(...)]` now directly accepts all relevant `#[pyo3(...)]` options.
--- a/noxfile.py
+++ b/noxfile.py
@ -9,7 +9,7 @@ import tempfile
 from functools import lru_cache
 from glob import glob
 from pathlib import Path
-from typing import Any, Callable, Dict, Iterator, List, Optional, Tuple
+from typing import Any, Callable, Dict, Iterable, Iterator, List, Optional, Tuple

 import nox
 import nox.command
@ -394,8 +394,17 @@ def check_guide(session: nox.Session):
    docs(session)
    session.posargs.extend(posargs)

+    if toml is None:
+        session.error("requires Python 3.11 or `toml` to be installed")
+    pyo3_version = toml.loads((PYO3_DIR / "Cargo.toml").read_text())["package"][
+        "version"
+    ]
+
    remaps = {
        f"file://{PYO3_GUIDE_SRC}/([^/]*/)*?%7B%7B#PYO3_DOCS_URL}}}}": f"file://{PYO3_DOCS_TARGET}",
+        f"https://pyo3.rs/v{pyo3_version}": f"file://{PYO3_GUIDE_TARGET}",
+        "https://pyo3.rs/main/": f"file://{PYO3_GUIDE_TARGET}/",
+        "https://pyo3.rs/latest/": f"file://{PYO3_GUIDE_TARGET}/",
        "%7B%7B#PYO3_DOCS_VERSION}}": "latest",
    }
    remap_args = []
@ -416,8 +425,7 @@ def check_guide(session: nox.Session):
        session,
        "lychee",
        str(PYO3_DOCS_TARGET),
-        f"--remap=https://pyo3.rs/main/ file://{PYO3_GUIDE_TARGET}/",
-        f"--remap=https://pyo3.rs/latest/ file://{PYO3_GUIDE_TARGET}/",
+        *remap_args,
        f"--exclude=file://{PYO3_DOCS_TARGET}",
        "--exclude=http://www.adobe.com/",
        *session.posargs,
@ -543,8 +551,8 @@ def check_changelog(session: nox.Session):
        print(fragment.name)


-@nox.session(name="set-minimal-package-versions", venv_backend="none")
-def set_minimal_package_versions(session: nox.Session):
+@nox.session(name="set-msrv-package-versions", venv_backend="none")
+def set_msrv_package_versions(session: nox.Session):
    from collections import defaultdict

    if toml is None:
@ -647,6 +655,14 @@ def test_version_limits(session: nox.Session):
        config_file.set("PyPy", "3.11")
        _run_cargo(session, "check", env=env, expect_error=True)

+        # Python build with GIL disabled should fail building
+        config_file.set("CPython", "3.13", build_flags=["Py_GIL_DISABLED"])
+        _run_cargo(session, "check", env=env, expect_error=True)
+
+        # Python build with GIL disabled should pass with env flag on
+        env["UNSAFE_PYO3_BUILD_FREE_THREADED"] = "1"
+        _run_cargo(session, "check", env=env)
+

@nox.session(name="check-feature-powerset", venv_backend="none")
 def check_feature_powerset(session: nox.Session):
@ -708,10 +724,14 @@ def check_feature_powerset(session: nox.Session):
    rust_flags = env.get("RUSTFLAGS", "")
    env["RUSTFLAGS"] = f"{rust_flags} -Dwarnings"

+    subcommand = "hack"
+    if "minimal-versions" in session.posargs:
+        subcommand = "minimal-versions"
+
    comma_join = ",".join
    _run_cargo(
        session,
-        "hack",
+        subcommand,
        "--feature-powerset",
        '--optional-deps=""',
        f'--skip="{comma_join(features_to_skip)}"',
@ -907,7 +927,9 @@ class _ConfigFile:
    def __init__(self, config_file) -> None:
        self._config_file = config_file

-    def set(self, implementation: str, version: str) -> None:
+    def set(
+        self, implementation: str, version: str, build_flags: Iterable[str] = ()
+    ) -> None:
        """Set the contents of this config file to the given implementation and version."""
        self._config_file.seek(0)
        self._config_file.truncate(0)
@ -915,6 +937,7 @@ class _ConfigFile:
            f"""\
 implementation={implementation}
 version={version}
+build_flags={','.join(build_flags)}
 suppress_build_script_link_lines=true
 """
        )
--- a/pyo3-build-config/Cargo.toml
+++ b/pyo3-build-config/Cargo.toml
@ -1,6 +1,6 @@
 [package]
 name = "pyo3-build-config"
-version = "0.22.1"
+version = "0.23.0-dev"
 description = "Build configuration for the PyO3 ecosystem"
 authors = ["PyO3 Project and Contributors <https://github.com/PyO3>"]
 keywords = ["pyo3", "python", "cpython", "ffi"]
--- a/pyo3-build-config/src/impl_.rs
+++ b/pyo3-build-config/src/impl_.rs
@ -996,6 +996,7 @@ pub enum BuildFlag {
    Py_DEBUG,
    Py_REF_DEBUG,
    Py_TRACE_REFS,
+    Py_GIL_DISABLED,
    COUNT_ALLOCS,
    Other(String),
 }
@ -1016,6 +1017,7 @@ impl FromStr for BuildFlag {
            "Py_DEBUG" => Ok(BuildFlag::Py_DEBUG),
            "Py_REF_DEBUG" => Ok(BuildFlag::Py_REF_DEBUG),
            "Py_TRACE_REFS" => Ok(BuildFlag::Py_TRACE_REFS),
+            "Py_GIL_DISABLED" => Ok(BuildFlag::Py_GIL_DISABLED),
            "COUNT_ALLOCS" => Ok(BuildFlag::COUNT_ALLOCS),
            other => Ok(BuildFlag::Other(other.to_owned())),
        }
@ -1039,10 +1041,11 @@ impl FromStr for BuildFlag {
 pub struct BuildFlags(pub HashSet<BuildFlag>);

 impl BuildFlags {
-    const ALL: [BuildFlag; 4] = [
+    const ALL: [BuildFlag; 5] = [
        BuildFlag::Py_DEBUG,
        BuildFlag::Py_REF_DEBUG,
        BuildFlag::Py_TRACE_REFS,
+        BuildFlag::Py_GIL_DISABLED,
        BuildFlag::COUNT_ALLOCS,
    ];

--- a/pyo3-build-config/src/lib.rs
+++ b/pyo3-build-config/src/lib.rs
@ -39,7 +39,9 @@ use target_lexicon::OperatingSystem;
 /// | `#[cfg(PyPy)]` | This marks code which is run when compiling for PyPy. |
 /// | `#[cfg(GraalPy)]` | This marks code which is run when compiling for GraalPy. |
 ///
-/// For examples of how to use these attributes, [see PyO3's guide](https://pyo3.rs/latest/building-and-distribution/multiple_python_versions.html).
+/// For examples of how to use these attributes,
+#[doc = concat!("[see PyO3's guide](https://pyo3.rs/v", env!("CARGO_PKG_VERSION"), "/building-and-distribution/multiple_python_versions.html)")]
+/// .
 #[cfg(feature = "resolve-config")]
 pub fn use_pyo3_cfgs() {
    print_expected_cfgs();
--- a/pyo3-ffi/Cargo.toml
+++ b/pyo3-ffi/Cargo.toml
@ -1,6 +1,6 @@
 [package]
 name = "pyo3-ffi"
-version = "0.22.1"
+version = "0.23.0-dev"
 description = "Python-API bindings for the PyO3 ecosystem"
 authors = ["PyO3 Project and Contributors <https://github.com/PyO3>"]
 keywords = ["pyo3", "python", "cpython", "ffi"]
@ -38,7 +38,7 @@ abi3-py312 = ["abi3", "pyo3-build-config/abi3-py312"]
 generate-import-lib = ["pyo3-build-config/python3-dll-a"]

 [build-dependencies]
-pyo3-build-config = { path = "../pyo3-build-config", version = "=0.22.1", features = ["resolve-config"] }
+pyo3-build-config = { path = "../pyo3-build-config", version = "=0.23.0-dev", features = ["resolve-config"] }

 [lints]
 workspace = true
--- a/pyo3-ffi/build.rs
+++ b/pyo3-ffi/build.rs
@ -4,8 +4,9 @@ use pyo3_build_config::{
        cargo_env_var, env_var, errors::Result, is_linking_libpython, resolve_interpreter_config,
        InterpreterConfig, PythonVersion,
    },
-    warn, PythonImplementation,
+    warn, BuildFlag, PythonImplementation,
 };
+use std::ops::Not;

 /// Minimum Python version PyO3 supports.
 struct SupportedVersions {
@ -120,6 +121,24 @@ fn ensure_python_version(interpreter_config: &InterpreterConfig) -> Result<()> {
    Ok(())
 }

+fn ensure_gil_enabled(interpreter_config: &InterpreterConfig) -> Result<()> {
+    let gil_enabled = interpreter_config
+        .build_flags
+        .0
+        .contains(&BuildFlag::Py_GIL_DISABLED)
+        .not();
+    ensure!(
+        gil_enabled || std::env::var("UNSAFE_PYO3_BUILD_FREE_THREADED").map_or(false, |os_str| os_str == "1"),
+        "the Python interpreter was built with the GIL disabled, which is not yet supported by PyO3\n\
+        = help: see https://github.com/PyO3/pyo3/issues/4265 for more information\n\
+        = help: please check if an updated version of PyO3 is available. Current version: {}\n\
+        = help: set UNSAFE_PYO3_BUILD_FREE_THREADED=1 to suppress this check and build anyway for free-threaded Python",
+        std::env::var("CARGO_PKG_VERSION").unwrap()
+    );
+
+    Ok(())
+}
+
 fn ensure_target_pointer_width(interpreter_config: &InterpreterConfig) -> Result<()> {
    if let Some(pointer_width) = interpreter_config.pointer_width {
        // Try to check whether the target architecture matches the python library
@ -185,6 +204,7 @@ fn configure_pyo3() -> Result<()> {

    ensure_python_version(&interpreter_config)?;
    ensure_target_pointer_width(&interpreter_config)?;
+    ensure_gil_enabled(&interpreter_config)?;

    // Serialize the whole interpreter config into DEP_PYTHON_PYO3_CONFIG env var.
    interpreter_config.to_cargo_dep_env()?;
--- a/pyo3-ffi/src/lib.rs
+++ b/pyo3-ffi/src/lib.rs
@ -221,11 +221,10 @@
 //! [`maturin`]: https://github.com/PyO3/maturin "Build and publish crates with pyo3, rust-cpython and cffi bindings as well as rust binaries as python packages"
 //! [`pyo3-build-config`]: https://docs.rs/pyo3-build-config
 //! [feature flags]: https://doc.rust-lang.org/cargo/reference/features.html "Features - The Cargo Book"
-//! [manual_builds]: https://pyo3.rs/latest/building-and-distribution.html#manual-builds "Manual builds - Building and Distribution - PyO3 user guide"
+#![doc = concat!("[manual_builds]: https://pyo3.rs/v", env!("CARGO_PKG_VERSION"), "/building-and-distribution.html#manual-builds \"Manual builds - Building and Distribution - PyO3 user guide\"")]
 //! [setuptools-rust]: https://github.com/PyO3/setuptools-rust "Setuptools plugin for Rust extensions"
 //! [PEP 384]: https://www.python.org/dev/peps/pep-0384 "PEP 384 -- Defining a Stable ABI"
-//! [Features chapter of the guide]: https://pyo3.rs/latest/features.html#features-reference "Features Reference - PyO3 user guide"
-
+#![doc = concat!("[Features chapter of the guide]: https://pyo3.rs/v", env!("CARGO_PKG_VERSION"), "/features.html#features-reference \"Features Reference - PyO3 user guide\"")]
 #![allow(
    missing_docs,
    non_camel_case_types,
--- a/pyo3-macros-backend/Cargo.toml
+++ b/pyo3-macros-backend/Cargo.toml
@ -1,6 +1,6 @@
 [package]
 name = "pyo3-macros-backend"
-version = "0.22.1"
+version = "0.23.0-dev"
 description = "Code generation for PyO3 package"
 authors = ["PyO3 Project and Contributors <https://github.com/PyO3>"]
 keywords = ["pyo3", "python", "cpython", "ffi"]
@ -16,7 +16,7 @@ edition = "2021"
 [dependencies]
 heck = "0.5"
 proc-macro2 = { version = "1.0.60", default-features = false }
-pyo3-build-config = { path = "../pyo3-build-config", version = "=0.22.1", features = ["resolve-config"] }
+pyo3-build-config = { path = "../pyo3-build-config", version = "=0.23.0-dev", features = ["resolve-config"] }
 quote = { version = "1", default-features = false }

 [dependencies.syn]
@ -25,7 +25,7 @@ default-features = false
 features = ["derive", "parsing", "printing", "clone-impls", "full", "extra-traits"]

 [build-dependencies]
-pyo3-build-config = { path = "../pyo3-build-config", version = "=0.22.1" }
+pyo3-build-config = { path = "../pyo3-build-config", version = "=0.23.0-dev" }

 [lints]
 workspace = true
--- a/pyo3-macros-backend/src/deprecations.rs
+++ b/pyo3-macros-backend/src/deprecations.rs
@ -1,53 +1,6 @@
-use crate::{
-    method::{FnArg, FnSpec},
-    utils::Ctx,
-};
-use proc_macro2::{Span, TokenStream};
-use quote::{quote_spanned, ToTokens};
-
-pub enum Deprecation {
-    PyMethodsNewDeprecatedForm,
-}
-
-impl Deprecation {
-    fn ident(&self, span: Span) -> syn::Ident {
-        let string = match self {
-            Deprecation::PyMethodsNewDeprecatedForm => "PYMETHODS_NEW_DEPRECATED_FORM",
-        };
-        syn::Ident::new(string, span)
-    }
-}
-
-pub struct Deprecations<'ctx>(Vec<(Deprecation, Span)>, &'ctx Ctx);
-
-impl<'ctx> Deprecations<'ctx> {
-    pub fn new(ctx: &'ctx Ctx) -> Self {
-        Deprecations(Vec::new(), ctx)
-    }
-
-    pub fn push(&mut self, deprecation: Deprecation, span: Span) {
-        self.0.push((deprecation, span))
-    }
-}
-
-impl<'ctx> ToTokens for Deprecations<'ctx> {
-    fn to_tokens(&self, tokens: &mut TokenStream) {
-        let Self(deprecations, Ctx { pyo3_path, .. }) = self;
-
-        for (deprecation, span) in deprecations {
-            let pyo3_path = pyo3_path.to_tokens_spanned(*span);
-            let ident = deprecation.ident(*span);
-            quote_spanned!(
-                *span =>
-                #[allow(clippy::let_unit_value)]
-                {
-                    let _ = #pyo3_path::impl_::deprecations::#ident;
-                }
-            )
-            .to_tokens(tokens)
-        }
-    }
-}
+use crate::method::{FnArg, FnSpec};
+use proc_macro2::TokenStream;
+use quote::quote_spanned;

 pub(crate) fn deprecate_trailing_option_default(spec: &FnSpec<'_>) -> TokenStream {
    if spec.signature.attribute.is_none()
--- a/pyo3-macros-backend/src/frompyobject.rs
+++ b/pyo3-macros-backend/src/frompyobject.rs
@ -1,7 +1,7 @@
 use crate::attributes::{self, get_pyo3_options, CrateAttribute, FromPyWithAttribute};
 use crate::utils::Ctx;
 use proc_macro2::TokenStream;
-use quote::{format_ident, quote, quote_spanned};
+use quote::{format_ident, quote};
 use syn::{
    parenthesized,
    parse::{Parse, ParseStream},
@ -44,16 +44,14 @@ impl<'a> Enum<'a> {
    }

    /// Build derivation body for enums.
-    fn build(&self, ctx: &Ctx) -> (TokenStream, TokenStream) {
+    fn build(&self, ctx: &Ctx) -> TokenStream {
        let Ctx { pyo3_path, .. } = ctx;
        let mut var_extracts = Vec::new();
        let mut variant_names = Vec::new();
        let mut error_names = Vec::new();

-        let mut deprecations = TokenStream::new();
        for var in &self.variants {
-            let (struct_derive, dep) = var.build(ctx);
-            deprecations.extend(dep);
+            let struct_derive = var.build(ctx);
            let ext = quote!({
                let maybe_ret = || -> #pyo3_path::PyResult<Self> {
                    #struct_derive
@ -70,22 +68,19 @@ impl<'a> Enum<'a> {
            error_names.push(&var.err_name);
        }
        let ty_name = self.enum_ident.to_string();
-        (
-            quote!(
-                let errors = [
-                    #(#var_extracts),*
-                ];
-                ::std::result::Result::Err(
-                    #pyo3_path::impl_::frompyobject::failed_to_extract_enum(
-                        obj.py(),
-                        #ty_name,
-                        &[#(#variant_names),*],
-                        &[#(#error_names),*],
-                        &errors
-                    )
+        quote!(
+            let errors = [
+                #(#var_extracts),*
+            ];
+            ::std::result::Result::Err(
+                #pyo3_path::impl_::frompyobject::failed_to_extract_enum(
+                    obj.py(),
+                    #ty_name,
+                    &[#(#variant_names),*],
+                    &[#(#error_names),*],
+                    &errors
                )
-            ),
-            deprecations,
+            )
        )
    }
 }
@ -244,7 +239,7 @@ impl<'a> Container<'a> {
    }

    /// Build derivation body for a struct.
-    fn build(&self, ctx: &Ctx) -> (TokenStream, TokenStream) {
+    fn build(&self, ctx: &Ctx) -> TokenStream {
        match &self.ty {
            ContainerType::StructNewtype(ident, from_py_with) => {
                self.build_newtype_struct(Some(ident), from_py_with, ctx)
@ -262,73 +257,42 @@ impl<'a> Container<'a> {
        field_ident: Option<&Ident>,
        from_py_with: &Option<FromPyWithAttribute>,
        ctx: &Ctx,
-    ) -> (TokenStream, TokenStream) {
+    ) -> TokenStream {
        let Ctx { pyo3_path, .. } = ctx;
        let self_ty = &self.path;
        let struct_name = self.name();
        if let Some(ident) = field_ident {
            let field_name = ident.to_string();
            match from_py_with {
-                None => (
-                    quote! {
-                        Ok(#self_ty {
-                            #ident: #pyo3_path::impl_::frompyobject::extract_struct_field(obj, #struct_name, #field_name)?
-                        })
-                    },
-                    TokenStream::new(),
-                ),
+                None => quote! {
+                    Ok(#self_ty {
+                        #ident: #pyo3_path::impl_::frompyobject::extract_struct_field(obj, #struct_name, #field_name)?
+                    })
+                },
                Some(FromPyWithAttribute {
                    value: expr_path, ..
-                }) => (
-                    quote! {
-                        Ok(#self_ty {
-                            #ident: #pyo3_path::impl_::frompyobject::extract_struct_field_with(#expr_path as fn(_) -> _, obj, #struct_name, #field_name)?
-                        })
-                    },
-                    quote_spanned! { expr_path.span() =>
-                        const _: () = {
-                            fn check_from_py_with() {
-                                let e = #pyo3_path::impl_::deprecations::GilRefs::new();
-                                #pyo3_path::impl_::deprecations::inspect_fn(#expr_path, &e);
-                                e.from_py_with_arg();
-                            }
-                        };
-                    },
-                ),
+                }) => quote! {
+                    Ok(#self_ty {
+                        #ident: #pyo3_path::impl_::frompyobject::extract_struct_field_with(#expr_path as fn(_) -> _, obj, #struct_name, #field_name)?
+                    })
+                },
            }
        } else {
            match from_py_with {
-                None => (
-                    quote!(
-                        #pyo3_path::impl_::frompyobject::extract_tuple_struct_field(obj, #struct_name, 0).map(#self_ty)
-                    ),
-                    TokenStream::new(),
-                ),
+                None => quote! {
+                    #pyo3_path::impl_::frompyobject::extract_tuple_struct_field(obj, #struct_name, 0).map(#self_ty)
+                },
+
                Some(FromPyWithAttribute {
                    value: expr_path, ..
-                }) => (
-                    quote! (
-                        #pyo3_path::impl_::frompyobject::extract_tuple_struct_field_with(#expr_path as fn(_) -> _, obj, #struct_name, 0).map(#self_ty)
-                    ),
-                    quote_spanned! { expr_path.span() =>
-                        const _: () = {
-                            fn check_from_py_with() {
-                                let e = #pyo3_path::impl_::deprecations::GilRefs::new();
-                                #pyo3_path::impl_::deprecations::inspect_fn(#expr_path, &e);
-                                e.from_py_with_arg();
-                            }
-                        };
-                    },
-                ),
+                }) => quote! {
+                    #pyo3_path::impl_::frompyobject::extract_tuple_struct_field_with(#expr_path as fn(_) -> _, obj, #struct_name, 0).map(#self_ty)
+                },
            }
        }
    }

-    fn build_tuple_struct(
-        &self,
-        struct_fields: &[TupleStructField],
-        ctx: &Ctx,
-    ) -> (TokenStream, TokenStream) {
+    fn build_tuple_struct(&self, struct_fields: &[TupleStructField], ctx: &Ctx) -> TokenStream {
        let Ctx { pyo3_path, .. } = ctx;
        let self_ty = &self.path;
        let struct_name = &self.name();
@ -348,40 +312,15 @@ impl<'a> Container<'a> {
            }
        });

-        let deprecations = struct_fields
-            .iter()
-            .filter_map(|field| {
-                let FromPyWithAttribute {
-                    value: expr_path, ..
-                } = field.from_py_with.as_ref()?;
-                Some(quote_spanned! { expr_path.span() =>
-                    const _: () = {
-                        fn check_from_py_with() {
-                            let e = #pyo3_path::impl_::deprecations::GilRefs::new();
-                            #pyo3_path::impl_::deprecations::inspect_fn(#expr_path, &e);
-                            e.from_py_with_arg();
-                        }
-                    };
-                })
-            })
-            .collect::<TokenStream>();
-
-        (
-            quote!(
-                match #pyo3_path::types::PyAnyMethods::extract(obj) {
-                    ::std::result::Result::Ok((#(#field_idents),*)) => ::std::result::Result::Ok(#self_ty(#(#fields),*)),
-                    ::std::result::Result::Err(err) => ::std::result::Result::Err(err),
-                }
-            ),
-            deprecations,
+        quote!(
+            match #pyo3_path::types::PyAnyMethods::extract(obj) {
+                ::std::result::Result::Ok((#(#field_idents),*)) => ::std::result::Result::Ok(#self_ty(#(#fields),*)),
+                ::std::result::Result::Err(err) => ::std::result::Result::Err(err),
+            }
        )
    }

-    fn build_struct(
-        &self,
-        struct_fields: &[NamedStructField<'_>],
-        ctx: &Ctx,
-    ) -> (TokenStream, TokenStream) {
+    fn build_struct(&self, struct_fields: &[NamedStructField<'_>], ctx: &Ctx) -> TokenStream {
        let Ctx { pyo3_path, .. } = ctx;
        let self_ty = &self.path;
        let struct_name = &self.name();
@ -420,28 +359,7 @@ impl<'a> Container<'a> {
            fields.push(quote!(#ident: #extractor));
        }

-        let deprecations = struct_fields
-            .iter()
-            .filter_map(|field| {
-                let FromPyWithAttribute {
-                    value: expr_path, ..
-                } = field.from_py_with.as_ref()?;
-                Some(quote_spanned! { expr_path.span() =>
-                    const _: () = {
-                        fn check_from_py_with() {
-                            let e = #pyo3_path::impl_::deprecations::GilRefs::new();
-                            #pyo3_path::impl_::deprecations::inspect_fn(#expr_path, &e);
-                            e.from_py_with_arg();
-                        }
-                    };
-                })
-            })
-            .collect::<TokenStream>();
-
-        (
-            quote!(::std::result::Result::Ok(#self_ty{#fields})),
-            deprecations,
-        )
+        quote!(::std::result::Result::Ok(#self_ty{#fields}))
    }
 }

@ -673,7 +591,7 @@ pub fn build_derive_from_pyobject(tokens: &DeriveInput) -> Result<TokenStream> {
    let ctx = &Ctx::new(&options.krate, None);
    let Ctx { pyo3_path, .. } = &ctx;

-    let (derives, from_py_with_deprecations) = match &tokens.data {
+    let derives = match &tokens.data {
        syn::Data::Enum(en) => {
            if options.transparent || options.annotation.is_some() {
                bail_spanned!(tokens.span() => "`transparent` or `annotation` is not supported \
@ -703,7 +621,5 @@ pub fn build_derive_from_pyobject(tokens: &DeriveInput) -> Result<TokenStream> {
                #derives
            }
        }
-
-        #from_py_with_deprecations
    ))
 }
--- a/pyo3-macros-backend/src/konst.rs
+++ b/pyo3-macros-backend/src/konst.rs
@ -1,11 +1,8 @@
 use std::borrow::Cow;
 use std::ffi::CString;

+use crate::attributes::{self, get_pyo3_options, take_attributes, NameAttribute};
 use crate::utils::{Ctx, LitCStr};
-use crate::{
-    attributes::{self, get_pyo3_options, take_attributes, NameAttribute},
-    deprecations::Deprecations,
-};
 use proc_macro2::{Ident, Span};
 use syn::{
    ext::IdentExt,
@ -14,12 +11,12 @@ use syn::{
    Result,
 };

-pub struct ConstSpec<'ctx> {
+pub struct ConstSpec {
    pub rust_ident: syn::Ident,
-    pub attributes: ConstAttributes<'ctx>,
+    pub attributes: ConstAttributes,
 }

-impl ConstSpec<'_> {
+impl ConstSpec {
    pub fn python_name(&self) -> Cow<'_, Ident> {
        if let Some(name) = &self.attributes.name {
            Cow::Borrowed(&name.value.0)
@ -35,10 +32,9 @@ impl ConstSpec<'_> {
    }
 }

-pub struct ConstAttributes<'ctx> {
+pub struct ConstAttributes {
    pub is_class_attr: bool,
    pub name: Option<NameAttribute>,
-    pub deprecations: Deprecations<'ctx>,
 }

 pub enum PyO3ConstAttribute {
@ -56,12 +52,11 @@ impl Parse for PyO3ConstAttribute {
    }
 }

-impl<'ctx> ConstAttributes<'ctx> {
-    pub fn from_attrs(attrs: &mut Vec<syn::Attribute>, ctx: &'ctx Ctx) -> syn::Result<Self> {
+impl ConstAttributes {
+    pub fn from_attrs(attrs: &mut Vec<syn::Attribute>) -> syn::Result<Self> {
        let mut attributes = ConstAttributes {
            is_class_attr: false,
            name: None,
-            deprecations: Deprecations::new(ctx),
        };

        take_attributes(attrs, |attr| {
--- a/pyo3-macros-backend/src/method.rs
+++ b/pyo3-macros-backend/src/method.rs
@ -10,7 +10,6 @@ use crate::deprecations::deprecate_trailing_option_default;
 use crate::utils::{Ctx, LitCStr};
 use crate::{
    attributes::{FromPyWithAttribute, TextSignatureAttribute, TextSignatureAttributeValue},
-    deprecations::{Deprecation, Deprecations},
    params::{impl_arg_params, Holders},
    pyfunction::{
        FunctionSignature, PyFunctionArgPyO3Attributes, PyFunctionOptions, SignatureAttribute,
@ -411,7 +410,6 @@ pub struct FnSpec<'a> {
    pub text_signature: Option<TextSignatureAttribute>,
    pub asyncness: Option<syn::Token![async]>,
    pub unsafety: Option<syn::Token![unsafe]>,
-    pub deprecations: Deprecations<'a>,
 }

 pub fn parse_method_receiver(arg: &syn::FnArg) -> Result<SelfType> {
@ -443,7 +441,6 @@ impl<'a> FnSpec<'a> {
        sig: &'a mut syn::Signature,
        meth_attrs: &mut Vec<syn::Attribute>,
        options: PyFunctionOptions,
-        ctx: &'a Ctx,
    ) -> Result<FnSpec<'a>> {
        let PyFunctionOptions {
            text_signature,
@ -453,9 +450,8 @@ impl<'a> FnSpec<'a> {
        } = options;

        let mut python_name = name.map(|name| name.value.0);
-        let mut deprecations = Deprecations::new(ctx);

-        let fn_type = Self::parse_fn_type(sig, meth_attrs, &mut python_name, &mut deprecations)?;
+        let fn_type = Self::parse_fn_type(sig, meth_attrs, &mut python_name)?;
        ensure_signatures_on_valid_method(&fn_type, signature.as_ref(), text_signature.as_ref())?;

        let name = &sig.ident;
@ -493,7 +489,6 @@ impl<'a> FnSpec<'a> {
            text_signature,
            asyncness: sig.asyncness,
            unsafety: sig.unsafety,
-            deprecations,
        })
    }

@ -507,9 +502,8 @@ impl<'a> FnSpec<'a> {
        sig: &syn::Signature,
        meth_attrs: &mut Vec<syn::Attribute>,
        python_name: &mut Option<syn::Ident>,
-        deprecations: &mut Deprecations<'_>,
    ) -> Result<FnType> {
-        let mut method_attributes = parse_method_attributes(meth_attrs, deprecations)?;
+        let mut method_attributes = parse_method_attributes(meth_attrs)?;

        let name = &sig.ident;
        let parse_receiver = |msg: &'static str| {
@ -683,11 +677,10 @@ impl<'a> FnSpec<'a> {
                    }
                    _ => {
                        if let Some(self_arg) = self_arg() {
-                            let self_checker = holders.push_gil_refs_checker(self_arg.span());
                            quote! {
                                function(
                                    // NB #self_arg includes a comma, so none inserted here
-                                    #pyo3_path::impl_::deprecations::inspect_type(#self_arg &#self_checker),
+                                    #self_arg
                                    #(#args),*
                                )
                            }
@ -714,11 +707,10 @@ impl<'a> FnSpec<'a> {
                }
                call
            } else if let Some(self_arg) = self_arg() {
-                let self_checker = holders.push_gil_refs_checker(self_arg.span());
                quote! {
                    function(
                        // NB #self_arg includes a comma, so none inserted here
-                        #pyo3_path::impl_::deprecations::inspect_type(#self_arg &#self_checker),
+                        #self_arg
                        #(#args),*
                    )
                }
@ -762,7 +754,6 @@ impl<'a> FnSpec<'a> {
                    })
                    .collect();
                let call = rust_call(args, &mut holders);
-                let check_gil_refs = holders.check_gil_refs();
                let init_holders = holders.init_holders(ctx);
                quote! {
                    unsafe fn #ident<'py>(
@ -774,7 +765,6 @@ impl<'a> FnSpec<'a> {
                        let function = #rust_name; // Shadow the function name to avoid #3017
                        #init_holders
                        let result = #call;
-                        #check_gil_refs
                        result
                    }
                }
@ -784,7 +774,6 @@ impl<'a> FnSpec<'a> {
                let (arg_convert, args) = impl_arg_params(self, cls, true, &mut holders, ctx);
                let call = rust_call(args, &mut holders);
                let init_holders = holders.init_holders(ctx);
-                let check_gil_refs = holders.check_gil_refs();

                quote! {
                    unsafe fn #ident<'py>(
@ -800,7 +789,6 @@ impl<'a> FnSpec<'a> {
                        #arg_convert
                        #init_holders
                        let result = #call;
-                        #check_gil_refs
                        result
                    }
                }
@ -810,7 +798,6 @@ impl<'a> FnSpec<'a> {
                let (arg_convert, args) = impl_arg_params(self, cls, false, &mut holders, ctx);
                let call = rust_call(args, &mut holders);
                let init_holders = holders.init_holders(ctx);
-                let check_gil_refs = holders.check_gil_refs();

                quote! {
                    unsafe fn #ident<'py>(
@ -825,7 +812,6 @@ impl<'a> FnSpec<'a> {
                        #arg_convert
                        #init_holders
                        let result = #call;
-                        #check_gil_refs
                        result
                    }
                }
@ -838,7 +824,6 @@ impl<'a> FnSpec<'a> {
                    .self_arg(cls, ExtractErrorMode::Raise, &mut holders, ctx);
                let call = quote_spanned! {*output_span=> #rust_name(#self_arg #(#args),*) };
                let init_holders = holders.init_holders(ctx);
-                let check_gil_refs = holders.check_gil_refs();
                quote! {
                    unsafe fn #ident(
                        py: #pyo3_path::Python<'_>,
@ -854,7 +839,6 @@ impl<'a> FnSpec<'a> {
                        #init_holders
                        let result = #call;
                        let initializer: #pyo3_path::PyClassInitializer::<#cls> = result.convert(py)?;
-                        #check_gil_refs
                        #pyo3_path::impl_::pymethods::tp_new_impl(py, initializer, _slf)
                    }
                }
@ -992,10 +976,7 @@ impl MethodTypeAttribute {
    /// If the attribute does not match one of the attribute names, returns `Ok(None)`.
    ///
    /// Otherwise will either return a parse error or the attribute.
-    fn parse_if_matching_attribute(
-        attr: &syn::Attribute,
-        deprecations: &mut Deprecations<'_>,
-    ) -> Result<Option<Self>> {
+    fn parse_if_matching_attribute(attr: &syn::Attribute) -> Result<Option<Self>> {
        fn ensure_no_arguments(meta: &syn::Meta, ident: &str) -> syn::Result<()> {
            match meta {
                syn::Meta::Path(_) => Ok(()),
@ -1039,11 +1020,6 @@ impl MethodTypeAttribute {
        if path.is_ident("new") {
            ensure_no_arguments(meta, "new")?;
            Ok(Some(MethodTypeAttribute::New(path.span())))
-        } else if path.is_ident("__new__") {
-            let span = path.span();
-            deprecations.push(Deprecation::PyMethodsNewDeprecatedForm, span);
-            ensure_no_arguments(meta, "__new__")?;
-            Ok(Some(MethodTypeAttribute::New(span)))
        } else if path.is_ident("classmethod") {
            ensure_no_arguments(meta, "classmethod")?;
            Ok(Some(MethodTypeAttribute::ClassMethod(path.span())))
@ -1078,15 +1054,12 @@ impl Display for MethodTypeAttribute {
    }
 }

-fn parse_method_attributes(
-    attrs: &mut Vec<syn::Attribute>,
-    deprecations: &mut Deprecations<'_>,
-) -> Result<Vec<MethodTypeAttribute>> {
+fn parse_method_attributes(attrs: &mut Vec<syn::Attribute>) -> Result<Vec<MethodTypeAttribute>> {
    let mut new_attrs = Vec::new();
    let mut found_attrs = Vec::new();

    for attr in attrs.drain(..) {
-        match MethodTypeAttribute::parse_if_matching_attribute(&attr, deprecations)? {
+        match MethodTypeAttribute::parse_if_matching_attribute(&attr)? {
            Some(attr) => found_attrs.push(attr),
            None => new_attrs.push(attr),
        }
--- a/pyo3-macros-backend/src/module.rs
+++ b/pyo3-macros-backend/src/module.rs
@ -2,8 +2,8 @@

 use crate::{
    attributes::{
-        self, take_attributes, take_pyo3_options, CrateAttribute, ModuleAttribute, NameAttribute,
-        SubmoduleAttribute,
+        self, kw, take_attributes, take_pyo3_options, CrateAttribute, ModuleAttribute,
+        NameAttribute, SubmoduleAttribute,
    },
    get_doc,
    pyclass::PyClassPyO3Option,
@ -26,97 +26,88 @@ use syn::{
 #[derive(Default)]
 pub struct PyModuleOptions {
    krate: Option<CrateAttribute>,
-    name: Option<syn::Ident>,
+    name: Option<NameAttribute>,
    module: Option<ModuleAttribute>,
-    is_submodule: bool,
+    submodule: Option<kw::submodule>,
 }

-impl PyModuleOptions {
-    pub fn from_attrs(attrs: &mut Vec<syn::Attribute>) -> Result<Self> {
+impl Parse for PyModuleOptions {
+    fn parse(input: ParseStream<'_>) -> syn::Result<Self> {
        let mut options: PyModuleOptions = Default::default();

-        for option in take_pyo3_options(attrs)? {
-            match option {
-                PyModulePyO3Option::Name(name) => options.set_name(name.value.0)?,
-                PyModulePyO3Option::Crate(path) => options.set_crate(path)?,
-                PyModulePyO3Option::Module(module) => options.set_module(module)?,
-                PyModulePyO3Option::Submodule(submod) => options.set_submodule(submod)?,
-            }
-        }
+        options.add_attributes(
+            Punctuated::<PyModulePyO3Option, syn::Token![,]>::parse_terminated(input)?,
+        )?;

        Ok(options)
    }
+}

-    fn set_name(&mut self, name: syn::Ident) -> Result<()> {
-        ensure_spanned!(
-            self.name.is_none(),
-            name.span() => "`name` may only be specified once"
-        );
-
-        self.name = Some(name);
-        Ok(())
+impl PyModuleOptions {
+    fn take_pyo3_options(&mut self, attrs: &mut Vec<syn::Attribute>) -> Result<()> {
+        self.add_attributes(take_pyo3_options(attrs)?)
    }

-    fn set_crate(&mut self, path: CrateAttribute) -> Result<()> {
-        ensure_spanned!(
-            self.krate.is_none(),
-            path.span() => "`crate` may only be specified once"
-        );
-
-        self.krate = Some(path);
-        Ok(())
-    }
-
-    fn set_module(&mut self, name: ModuleAttribute) -> Result<()> {
-        ensure_spanned!(
-            self.module.is_none(),
-            name.span() => "`module` may only be specified once"
-        );
-
-        self.module = Some(name);
-        Ok(())
-    }
-
-    fn set_submodule(&mut self, submod: SubmoduleAttribute) -> Result<()> {
-        ensure_spanned!(
-            !self.is_submodule,
-            submod.span() => "`submodule` may only be specified once"
-        );
-
-        self.is_submodule = true;
+    fn add_attributes(
+        &mut self,
+        attrs: impl IntoIterator<Item = PyModulePyO3Option>,
+    ) -> Result<()> {
+        macro_rules! set_option {
+            ($key:ident $(, $extra:literal)?) => {
+                {
+                    ensure_spanned!(
+                        self.$key.is_none(),
+                        $key.span() => concat!("`", stringify!($key), "` may only be specified once" $(, $extra)?)
+                    );
+                    self.$key = Some($key);
+                }
+            };
+        }
+        for attr in attrs {
+            match attr {
+                PyModulePyO3Option::Crate(krate) => set_option!(krate),
+                PyModulePyO3Option::Name(name) => set_option!(name),
+                PyModulePyO3Option::Module(module) => set_option!(module),
+                PyModulePyO3Option::Submodule(submodule) => set_option!(
+                    submodule,
+                    " (it is implicitly always specified for nested modules)"
+                ),
+            }
+        }
        Ok(())
    }
 }

 pub fn pymodule_module_impl(
-    mut module: syn::ItemMod,
-    mut is_submodule: bool,
+    module: &mut syn::ItemMod,
+    mut options: PyModuleOptions,
 ) -> Result<TokenStream> {
    let syn::ItemMod {
        attrs,
        vis,
        unsafety: _,
        ident,
-        mod_token: _,
+        mod_token,
        content,
        semi: _,
-    } = &mut module;
+    } = module;
    let items = if let Some((_, items)) = content {
        items
    } else {
-        bail_spanned!(module.span() => "`#[pymodule]` can only be used on inline modules")
+        bail_spanned!(mod_token.span() => "`#[pymodule]` can only be used on inline modules")
    };
-    let options = PyModuleOptions::from_attrs(attrs)?;
+    options.take_pyo3_options(attrs)?;
    let ctx = &Ctx::new(&options.krate, None);
    let Ctx { pyo3_path, .. } = ctx;
    let doc = get_doc(attrs, None, ctx);
-    let name = options.name.unwrap_or_else(|| ident.unraw());
+    let name = options
+        .name
+        .map_or_else(|| ident.unraw(), |name| name.value.0);
    let full_name = if let Some(module) = &options.module {
        format!("{}.{}", module.value.value(), name)
    } else {
        name.to_string()
    };
-    is_submodule = is_submodule || options.is_submodule;

    let mut module_items = Vec::new();
    let mut module_items_cfg_attrs = Vec::new();
@ -273,6 +264,9 @@ pub fn pymodule_module_impl(
                    )? {
                        set_module_attribute(&mut item_mod.attrs, &full_name);
                    }
+                    item_mod
+                        .attrs
+                        .push(parse_quote_spanned!(item_mod.mod_token.span()=> #[pyo3(submodule)]));
                }
            }
            Item::ForeignMod(item) => {
@ -350,10 +344,11 @@ pub fn pymodule_module_impl(
            )
        }
    }};
-    let initialization = module_initialization(&name, ctx, module_def, is_submodule);
+    let initialization = module_initialization(&name, ctx, module_def, options.submodule.is_some());
+
    Ok(quote!(
        #(#attrs)*
-        #vis mod #ident {
+        #vis #mod_token #ident {
            #(#items)*

            #initialization
@ -365,7 +360,7 @@ pub fn pymodule_module_impl(
                    #module_items::_PYO3_DEF.add_to_module(module)?;
                )*
                #pymodule_init
-                Ok(())
+                ::std::result::Result::Ok(())
            }
        }
    ))
@ -373,14 +368,18 @@ pub fn pymodule_module_impl(

 /// Generates the function that is called by the python interpreter to initialize the native
 /// module
-pub fn pymodule_function_impl(mut function: syn::ItemFn) -> Result<TokenStream> {
-    let options = PyModuleOptions::from_attrs(&mut function.attrs)?;
-    process_functions_in_module(&options, &mut function)?;
+pub fn pymodule_function_impl(
+    function: &mut syn::ItemFn,
+    mut options: PyModuleOptions,
+) -> Result<TokenStream> {
+    options.take_pyo3_options(&mut function.attrs)?;
+    process_functions_in_module(&options, function)?;
    let ctx = &Ctx::new(&options.krate, None);
-    let stmts = std::mem::take(&mut function.block.stmts);
    let Ctx { pyo3_path, .. } = ctx;
    let ident = &function.sig.ident;
-    let name = options.name.unwrap_or_else(|| ident.unraw());
+    let name = options
+        .name
+        .map_or_else(|| ident.unraw(), |name| name.value.0);
    let vis = &function.vis;
    let doc = get_doc(&function.attrs, None, ctx);

@ -394,32 +393,7 @@ pub fn pymodule_function_impl(mut function: syn::ItemFn) -> Result<TokenStream>
    module_args
        .push(quote!(::std::convert::Into::into(#pyo3_path::impl_::pymethods::BoundRef(module))));

-    let extractors = function
-        .sig
-        .inputs
-        .iter()
-        .filter_map(|param| {
-            if let syn::FnArg::Typed(pat_type) = param {
-                if let syn::Pat::Ident(pat_ident) = &*pat_type.pat {
-                    let ident: &syn::Ident = &pat_ident.ident;
-                    return Some([
-                        parse_quote!{ let check_gil_refs = #pyo3_path::impl_::deprecations::GilRefs::new(); },
-                        parse_quote! { let #ident = #pyo3_path::impl_::deprecations::inspect_type(#ident, &check_gil_refs); },
-                        parse_quote_spanned! { pat_type.span() => check_gil_refs.function_arg(); },
-                    ]);
-                }
-            }
-            None
-        })
-        .flatten();
-
-    function.block.stmts = extractors.chain(stmts).collect();
-    function
-        .attrs
-        .push(parse_quote!(#[allow(clippy::used_underscore_binding)]));
-
    Ok(quote! {
-        #function
        #[doc(hidden)]
        #vis mod #ident {
            #initialization
--- a/pyo3-macros-backend/src/params.rs
+++ b/pyo3-macros-backend/src/params.rs
@ -10,14 +10,12 @@ use syn::spanned::Spanned;

 pub struct Holders {
    holders: Vec<syn::Ident>,
-    gil_refs_checkers: Vec<GilRefChecker>,
 }

 impl Holders {
    pub fn new() -> Self {
        Holders {
            holders: Vec::new(),
-            gil_refs_checkers: Vec::new(),
        }
    }

@ -27,58 +25,14 @@ impl Holders {
        holder
    }

-    pub fn push_gil_refs_checker(&mut self, span: Span) -> syn::Ident {
-        let gil_refs_checker = syn::Ident::new(
-            &format!("gil_refs_checker_{}", self.gil_refs_checkers.len()),
-            span,
-        );
-        self.gil_refs_checkers
-            .push(GilRefChecker::FunctionArg(gil_refs_checker.clone()));
-        gil_refs_checker
-    }
-
-    pub fn push_from_py_with_checker(&mut self, span: Span) -> syn::Ident {
-        let gil_refs_checker = syn::Ident::new(
-            &format!("gil_refs_checker_{}", self.gil_refs_checkers.len()),
-            span,
-        );
-        self.gil_refs_checkers
-            .push(GilRefChecker::FromPyWith(gil_refs_checker.clone()));
-        gil_refs_checker
-    }
-
    pub fn init_holders(&self, ctx: &Ctx) -> TokenStream {
        let Ctx { pyo3_path, .. } = ctx;
        let holders = &self.holders;
-        let gil_refs_checkers = self.gil_refs_checkers.iter().map(|checker| match checker {
-            GilRefChecker::FunctionArg(ident) => ident,
-            GilRefChecker::FromPyWith(ident) => ident,
-        });
        quote! {
            #[allow(clippy::let_unit_value)]
            #(let mut #holders = #pyo3_path::impl_::extract_argument::FunctionArgumentHolder::INIT;)*
-            #(let #gil_refs_checkers = #pyo3_path::impl_::deprecations::GilRefs::new();)*
        }
    }
-
-    pub fn check_gil_refs(&self) -> TokenStream {
-        self.gil_refs_checkers
-            .iter()
-            .map(|checker| match checker {
-                GilRefChecker::FunctionArg(ident) => {
-                    quote_spanned! { ident.span() => #ident.function_arg(); }
-                }
-                GilRefChecker::FromPyWith(ident) => {
-                    quote_spanned! { ident.span() => #ident.from_py_with_arg(); }
-                }
-            })
-            .collect()
-    }
-}
-
-enum GilRefChecker {
-    FunctionArg(syn::Ident),
-    FromPyWith(syn::Ident),
 }

 /// Return true if the argument list is simply (*args, **kwds).
@ -89,17 +43,6 @@ pub fn is_forwarded_args(signature: &FunctionSignature<'_>) -> bool {
    )
 }

-pub(crate) fn check_arg_for_gil_refs(
-    tokens: TokenStream,
-    gil_refs_checker: syn::Ident,
-    ctx: &Ctx,
-) -> TokenStream {
-    let Ctx { pyo3_path, .. } = ctx;
-    quote! {
-        #pyo3_path::impl_::deprecations::inspect_type(#tokens, &#gil_refs_checker)
-    }
-}
-
 pub fn impl_arg_params(
    spec: &FnSpec<'_>,
    self_: Option<&syn::Type>,
@ -119,9 +62,7 @@ pub fn impl_arg_params(
            let from_py_with = &arg.from_py_with()?.value;
            let from_py_with_holder = format_ident!("from_py_with_{}", i);
            Some(quote_spanned! { from_py_with.span() =>
-                let e = #pyo3_path::impl_::deprecations::GilRefs::new();
-                let #from_py_with_holder = #pyo3_path::impl_::deprecations::inspect_fn(#from_py_with, &e);
-                e.from_py_with_arg();
+                let #from_py_with_holder = #from_py_with;
            })
        })
        .collect::<TokenStream>();
@ -250,8 +191,7 @@ fn impl_arg_param(
            let from_py_with = format_ident!("from_py_with_{}", pos);
            let arg_value = quote!(#args_array[#option_pos].as_deref());
            *option_pos += 1;
-            let tokens = impl_regular_arg_param(arg, from_py_with, arg_value, holders, ctx);
-            check_arg_for_gil_refs(tokens, holders.push_gil_refs_checker(arg.ty.span()), ctx)
+            impl_regular_arg_param(arg, from_py_with, arg_value, holders, ctx)
        }
        FnArg::VarArgs(arg) => {
            let holder = holders.push_holder(arg.name.span());
--- a/pyo3-macros-backend/src/pyclass.rs
+++ b/pyo3-macros-backend/src/pyclass.rs
@ -12,7 +12,6 @@ use crate::attributes::{
    self, kw, take_pyo3_options, CrateAttribute, ExtendsAttribute, FreelistAttribute,
    ModuleAttribute, NameAttribute, NameLitStr, RenameAllAttribute,
 };
-use crate::deprecations::Deprecations;
 use crate::konst::{ConstAttributes, ConstSpec};
 use crate::method::{FnArg, FnSpec, PyArg, RegularArg};
 use crate::pyfunction::ConstructorAttribute;
@ -232,17 +231,19 @@ pub fn build_py_class(

    if let Some(lt) = class.generics.lifetimes().next() {
        bail_spanned!(
-            lt.span() =>
-            "#[pyclass] cannot have lifetime parameters. \
-            For an explanation, see https://pyo3.rs/latest/class.html#no-lifetime-parameters"
+            lt.span() => concat!(
+                "#[pyclass] cannot have lifetime parameters. For an explanation, see \
+                https://pyo3.rs/v", env!("CARGO_PKG_VERSION"), "/class.html#no-lifetime-parameters"
+            )
        );
    }

    ensure_spanned!(
        class.generics.params.is_empty(),
-        class.generics.span() =>
-            "#[pyclass] cannot have generic parameters. \
-            For an explanation, see https://pyo3.rs/latest/class.html#no-generic-parameters"
+        class.generics.span() => concat!(
+            "#[pyclass] cannot have generic parameters. For an explanation, see \
+            https://pyo3.rs/v", env!("CARGO_PKG_VERSION"), "/class.html#no-generic-parameters"
+        )
    );

    let mut field_options: Vec<(&syn::Field, FieldPyO3Options)> = match &mut class.fields {
@ -384,7 +385,7 @@ fn impl_class(
    ctx: &Ctx,
 ) -> syn::Result<TokenStream> {
    let Ctx { pyo3_path, .. } = ctx;
-    let pytypeinfo_impl = impl_pytypeinfo(cls, args, None, ctx);
+    let pytypeinfo_impl = impl_pytypeinfo(cls, args, ctx);

    let (default_richcmp, default_richcmp_slot) =
        pyclass_richcmp(&args.options, &syn::parse_quote!(#cls), ctx)?;
@ -779,7 +780,7 @@ fn impl_simple_enum(
    let cls = simple_enum.ident;
    let ty: syn::Type = syn::parse_quote!(#cls);
    let variants = simple_enum.variants;
-    let pytypeinfo = impl_pytypeinfo(cls, args, None, ctx);
+    let pytypeinfo = impl_pytypeinfo(cls, args, ctx);

    for variant in &variants {
        ensure_spanned!(variant.options.constructor.is_none(), variant.options.constructor.span() => "`constructor` can't be used on a simple enum variant");
@ -889,7 +890,7 @@ fn impl_complex_enum(
    let ctx = &Ctx::new(&args.options.krate, None);
    let cls = complex_enum.ident;
    let variants = complex_enum.variants;
-    let pytypeinfo = impl_pytypeinfo(cls, &args, None, ctx);
+    let pytypeinfo = impl_pytypeinfo(cls, &args, ctx);

    let (default_richcmp, default_richcmp_slot) = pyclass_richcmp(&args.options, &ty, ctx)?;
    let (default_hash, default_hash_slot) = pyclass_hash(&args.options, &ty, ctx)?;
@ -977,7 +978,7 @@ fn impl_complex_enum(
            },
        };

-        let variant_cls_pytypeinfo = impl_pytypeinfo(&variant_cls, &variant_args, None, ctx);
+        let variant_cls_pytypeinfo = impl_pytypeinfo(&variant_cls, &variant_args, ctx);
        variant_cls_pytypeinfos.push(variant_cls_pytypeinfo);

        let (variant_cls_impl, field_getters, mut slots) =
@ -1057,7 +1058,6 @@ fn impl_complex_enum_variant_match_args(
        attributes: ConstAttributes {
            is_class_attr: true,
            name: None,
-            deprecations: Deprecations::new(ctx),
        },
    };

@ -1318,7 +1318,6 @@ fn generate_protocol_slot(
        &mut method.sig,
        &mut Vec::new(),
        PyFunctionOptions::default(),
-        ctx,
    )
    .unwrap();
    slot.generate_type_slot(&syn::parse_quote!(#cls), &spec, name, ctx)
@ -1334,7 +1333,6 @@ fn generate_default_protocol_slot(
        &mut method.sig,
        &mut Vec::new(),
        PyFunctionOptions::default(),
-        ctx,
    )
    .unwrap();
    let name = spec.name.to_string();
@ -1360,7 +1358,6 @@ fn simple_enum_default_methods<'a>(
                kw: syn::parse_quote! { name },
                value: NameLitStr(py_ident.clone()),
            }),
-            deprecations: Deprecations::new(ctx),
        },
    };
    unit_variant_names
@ -1383,7 +1380,6 @@ fn complex_enum_default_methods<'a>(
                kw: syn::parse_quote! { name },
                value: NameLitStr(py_ident.clone()),
            }),
-            deprecations: Deprecations::new(ctx),
        },
    };
    variant_names
@ -1397,19 +1393,17 @@ fn complex_enum_default_methods<'a>(
 pub fn gen_complex_enum_variant_attr(
    cls: &syn::Ident,
    cls_type: &syn::Type,
-    spec: &ConstSpec<'_>,
+    spec: &ConstSpec,
    ctx: &Ctx,
 ) -> MethodAndMethodDef {
    let Ctx { pyo3_path, .. } = ctx;
    let member = &spec.rust_ident;
    let wrapper_ident = format_ident!("__pymethod_variant_cls_{}__", member);
-    let deprecations = &spec.attributes.deprecations;
    let python_name = spec.null_terminated_python_name(ctx);

    let variant_cls = format_ident!("{}_{}", cls, member);
    let associated_method = quote! {
        fn #wrapper_ident(py: #pyo3_path::Python<'_>) -> #pyo3_path::PyResult<#pyo3_path::PyObject> {
-            #deprecations
            ::std::result::Result::Ok(py.get_type_bound::<#variant_cls>().into_any().unbind())
        }
    };
@ -1497,7 +1491,6 @@ fn complex_enum_struct_variant_new<'a>(
        text_signature: None,
        asyncness: None,
        unsafety: None,
-        deprecations: Deprecations::new(ctx),
    };

    crate::pymethod::impl_py_method_def_new(&variant_cls_type, &spec, ctx)
@ -1552,7 +1545,6 @@ fn complex_enum_tuple_variant_new<'a>(
        text_signature: None,
        asyncness: None,
        unsafety: None,
-        deprecations: Deprecations::new(ctx),
    };

    crate::pymethod::impl_py_method_def_new(&variant_cls_type, &spec, ctx)
@ -1577,7 +1569,6 @@ fn complex_enum_variant_field_getter<'a>(
        text_signature: None,
        asyncness: None,
        unsafety: None,
-        deprecations: Deprecations::new(ctx),
    };

    let property_type = crate::pymethod::PropertyType::Function {
@ -1641,12 +1632,7 @@ fn descriptors_to_items(
    Ok(items)
 }

-fn impl_pytypeinfo(
-    cls: &syn::Ident,
-    attr: &PyClassArgs,
-    deprecations: Option<&Deprecations<'_>>,
-    ctx: &Ctx,
-) -> TokenStream {
+fn impl_pytypeinfo(cls: &syn::Ident, attr: &PyClassArgs, ctx: &Ctx) -> TokenStream {
    let Ctx { pyo3_path, .. } = ctx;
    let cls_name = get_class_python_name(cls, attr).to_string();

@ -1677,8 +1663,6 @@ fn impl_pytypeinfo(
            #[inline]
            fn type_object_raw(py: #pyo3_path::Python<'_>) -> *mut #pyo3_path::ffi::PyTypeObject {
                use #pyo3_path::prelude::PyTypeMethods;
-                #deprecations
-
                <#cls as #pyo3_path::impl_::pyclass::PyClassImpl>::lazy_type_object()
                    .get_or_init(py)
                    .as_type_ptr()
--- a/pyo3-macros-backend/src/pyfunction.rs
+++ b/pyo3-macros-backend/src/pyfunction.rs
@ -4,7 +4,6 @@ use crate::{
        self, get_pyo3_options, take_attributes, take_pyo3_options, CrateAttribute,
        FromPyWithAttribute, NameAttribute, TextSignatureAttribute,
    },
-    deprecations::Deprecations,
    method::{self, CallingConvention, FnArg},
    pymethod::check_generic,
 };
@ -252,7 +251,6 @@ pub fn impl_wrap_pyfunction(
        text_signature,
        asyncness: func.sig.asyncness,
        unsafety: func.sig.unsafety,
-        deprecations: Deprecations::new(ctx),
    };

    let vis = &func.vis;
--- a/pyo3-macros-backend/src/pyimpl.rs
+++ b/pyo3-macros-backend/src/pyimpl.rs
@ -130,7 +130,7 @@ pub fn impl_methods(
            }
            syn::ImplItem::Const(konst) => {
                let ctx = &Ctx::new(&options.krate, None);
-                let attributes = ConstAttributes::from_attrs(&mut konst.attrs, ctx)?;
+                let attributes = ConstAttributes::from_attrs(&mut konst.attrs)?;
                if attributes.is_class_attr {
                    let spec = ConstSpec {
                        rust_ident: konst.ident.clone(),
@ -182,16 +182,14 @@ pub fn impl_methods(
    })
 }

-pub fn gen_py_const(cls: &syn::Type, spec: &ConstSpec<'_>, ctx: &Ctx) -> MethodAndMethodDef {
+pub fn gen_py_const(cls: &syn::Type, spec: &ConstSpec, ctx: &Ctx) -> MethodAndMethodDef {
    let member = &spec.rust_ident;
    let wrapper_ident = format_ident!("__pymethod_{}__", member);
-    let deprecations = &spec.attributes.deprecations;
    let python_name = spec.null_terminated_python_name(ctx);
    let Ctx { pyo3_path, .. } = ctx;

    let associated_method = quote! {
        fn #wrapper_ident(py: #pyo3_path::Python<'_>) -> #pyo3_path::PyResult<#pyo3_path::PyObject> {
-            #deprecations
            ::std::result::Result::Ok(#pyo3_path::IntoPy::into_py(#cls::#member, py))
        }
    };
--- a/pyo3-macros-backend/src/pymethod.rs
+++ b/pyo3-macros-backend/src/pymethod.rs
@ -4,7 +4,7 @@ use std::ffi::CString;
 use crate::attributes::{NameAttribute, RenamingRule};
 use crate::deprecations::deprecate_trailing_option_default;
 use crate::method::{CallingConvention, ExtractErrorMode, PyArg};
-use crate::params::{check_arg_for_gil_refs, impl_regular_arg_param, Holders};
+use crate::params::{impl_regular_arg_param, Holders};
 use crate::utils::PythonDoc;
 use crate::utils::{Ctx, LitCStr};
 use crate::{
@ -164,9 +164,8 @@ impl<'a> PyMethod<'a> {
        sig: &'a mut syn::Signature,
        meth_attrs: &mut Vec<syn::Attribute>,
        options: PyFunctionOptions,
-        ctx: &'a Ctx,
    ) -> Result<Self> {
-        let spec = FnSpec::parse(sig, meth_attrs, options, ctx)?;
+        let spec = FnSpec::parse(sig, meth_attrs, options)?;

        let method_name = spec.python_name.to_string();
        let kind = PyMethodKind::from_name(&method_name);
@ -195,7 +194,7 @@ pub fn gen_py_method(
 ) -> Result<GeneratedPyMethod> {
    check_generic(sig)?;
    ensure_function_options_valid(&options)?;
-    let method = PyMethod::parse(sig, meth_attrs, options, ctx)?;
+    let method = PyMethod::parse(sig, meth_attrs, options)?;
    let spec = &method.spec;
    let Ctx { pyo3_path, .. } = ctx;

@ -356,7 +355,6 @@ pub fn impl_py_method_def_new(
        || quote!(::std::option::Option::None),
        |text_signature| quote!(::std::option::Option::Some(#text_signature)),
    );
-    let deprecations = &spec.deprecations;
    let slot_def = quote! {
        #pyo3_path::ffi::PyType_Slot {
            slot: #pyo3_path::ffi::Py_tp_new,
@ -365,10 +363,7 @@ pub fn impl_py_method_def_new(
                    subtype: *mut #pyo3_path::ffi::PyTypeObject,
                    args: *mut #pyo3_path::ffi::PyObject,
                    kwargs: *mut #pyo3_path::ffi::PyObject,
-                ) -> *mut #pyo3_path::ffi::PyObject
-                {
-                    #deprecations
-
+                ) -> *mut #pyo3_path::ffi::PyObject {
                    use #pyo3_path::impl_::pyclass::*;
                    #[allow(unknown_lints, non_local_definitions)]
                    impl PyClassNewTextSignature<#cls> for PyClassImplCollector<#cls> {
@ -612,21 +607,18 @@ pub fn impl_py_setter_def(
        PropertyType::Function { spec, .. } => {
            let (_, args) = split_off_python_arg(&spec.signature.arguments);
            let value_arg = &args[0];
-            let (from_py_with, ident) = if let Some(from_py_with) =
-                &value_arg.from_py_with().as_ref().map(|f| &f.value)
-            {
-                let ident = syn::Ident::new("from_py_with", from_py_with.span());
-                (
-                    quote_spanned! { from_py_with.span() =>
-                        let e = #pyo3_path::impl_::deprecations::GilRefs::new();
-                        let #ident = #pyo3_path::impl_::deprecations::inspect_fn(#from_py_with, &e);
-                        e.from_py_with_arg();
-                    },
-                    ident,
-                )
-            } else {
-                (quote!(), syn::Ident::new("dummy", Span::call_site()))
-            };
+            let (from_py_with, ident) =
+                if let Some(from_py_with) = &value_arg.from_py_with().as_ref().map(|f| &f.value) {
+                    let ident = syn::Ident::new("from_py_with", from_py_with.span());
+                    (
+                        quote_spanned! { from_py_with.span() =>
+                            let #ident = #from_py_with;
+                        },
+                        ident,
+                    )
+                } else {
+                    (quote!(), syn::Ident::new("dummy", Span::call_site()))
+                };

            let arg = if let FnArg::Regular(arg) = &value_arg {
                arg
@ -634,15 +626,13 @@ pub fn impl_py_setter_def(
                bail_spanned!(value_arg.name().span() => "The #[setter] value argument can't be *args, **kwargs or `cancel_handle`.");
            };

-            let tokens = impl_regular_arg_param(
+            let extract = impl_regular_arg_param(
                arg,
                ident,
                quote!(::std::option::Option::Some(_value.into())),
                &mut holders,
                ctx,
            );
-            let extract =
-                check_arg_for_gil_refs(tokens, holders.push_gil_refs_checker(arg.ty.span()), ctx);

            let deprecation = deprecate_trailing_option_default(spec);
            quote! {
@ -660,12 +650,8 @@ pub fn impl_py_setter_def(
                .unwrap_or_default();

            let holder = holders.push_holder(span);
-            let gil_refs_checker = holders.push_gil_refs_checker(span);
            quote! {
-                let _val = #pyo3_path::impl_::deprecations::inspect_type(
-                    #pyo3_path::impl_::extract_argument::extract_argument(_value.into(), &mut #holder, #name)?,
-                    &#gil_refs_checker
-                );
+                let _val = #pyo3_path::impl_::extract_argument::extract_argument(_value.into(), &mut #holder, #name)?;
            }
        }
    };
@ -682,7 +668,6 @@ pub fn impl_py_setter_def(
    }

    let init_holders = holders.init_holders(ctx);
-    let check_gil_refs = holders.check_gil_refs();
    let associated_method = quote! {
        #cfg_attrs
        unsafe fn #wrapper_ident(
@ -698,7 +683,6 @@ pub fn impl_py_setter_def(
            #init_holders
            #extract
            let result = #setter_impl;
-            #check_gil_refs
            #pyo3_path::callback::convert(py, result)
        }
    };
@ -824,7 +808,6 @@ pub fn impl_py_getter_def(
            };

            let init_holders = holders.init_holders(ctx);
-            let check_gil_refs = holders.check_gil_refs();
            let associated_method = quote! {
                #cfg_attrs
                unsafe fn #wrapper_ident(
@ -833,7 +816,6 @@ pub fn impl_py_getter_def(
                ) -> #pyo3_path::PyResult<*mut #pyo3_path::ffi::PyObject> {
                    #init_holders
                    let result = #body;
-                    #check_gil_refs
                    result
                }
            };
@ -1139,35 +1121,30 @@ fn extract_object(
    ctx: &Ctx,
 ) -> TokenStream {
    let Ctx { pyo3_path, .. } = ctx;
-    let gil_refs_checker = holders.push_gil_refs_checker(arg.ty().span());
    let name = arg.name().unraw().to_string();

-    let extract = if let Some(from_py_with) =
-        arg.from_py_with().map(|from_py_with| &from_py_with.value)
-    {
-        let from_py_with_checker = holders.push_from_py_with_checker(from_py_with.span());
-        quote! {
-            #pyo3_path::impl_::extract_argument::from_py_with(
-                #pyo3_path::impl_::pymethods::BoundRef::ref_from_ptr(py, &#source_ptr).0,
-                #name,
-                #pyo3_path::impl_::deprecations::inspect_fn(#from_py_with, &#from_py_with_checker) as fn(_) -> _,
-            )
-        }
-    } else {
-        let holder = holders.push_holder(Span::call_site());
-        quote! {
-            #pyo3_path::impl_::extract_argument::extract_argument(
-                #pyo3_path::impl_::pymethods::BoundRef::ref_from_ptr(py, &#source_ptr).0,
-                &mut #holder,
-                #name
-            )
-        }
-    };
+    let extract =
+        if let Some(from_py_with) = arg.from_py_with().map(|from_py_with| &from_py_with.value) {
+            quote! {
+                #pyo3_path::impl_::extract_argument::from_py_with(
+                    #pyo3_path::impl_::pymethods::BoundRef::ref_from_ptr(py, &#source_ptr).0,
+                    #name,
+                    #from_py_with as fn(_) -> _,
+                )
+            }
+        } else {
+            let holder = holders.push_holder(Span::call_site());
+            quote! {
+                #pyo3_path::impl_::extract_argument::extract_argument(
+                    #pyo3_path::impl_::pymethods::BoundRef::ref_from_ptr(py, &#source_ptr).0,
+                    &mut #holder,
+                    #name
+                )
+            }
+        };

    let extracted = extract_error_mode.handle_error(extract, ctx);
-    quote! {
-        #pyo3_path::impl_::deprecations::inspect_type(#extracted, &#gil_refs_checker)
-    }
+    quote!(#extracted)
 }

 enum ReturnMode {
@ -1177,15 +1154,13 @@ enum ReturnMode {
 }

 impl ReturnMode {
-    fn return_call_output(&self, call: TokenStream, ctx: &Ctx, holders: &Holders) -> TokenStream {
+    fn return_call_output(&self, call: TokenStream, ctx: &Ctx) -> TokenStream {
        let Ctx { pyo3_path, .. } = ctx;
-        let check_gil_refs = holders.check_gil_refs();
        match self {
            ReturnMode::Conversion(conversion) => {
                let conversion = TokenGeneratorCtx(*conversion, ctx);
                quote! {
                    let _result: #pyo3_path::PyResult<#conversion> = #pyo3_path::callback::convert(py, #call);
-                    #check_gil_refs
                    #pyo3_path::callback::convert(py, _result)
                }
            }
@ -1195,14 +1170,12 @@ impl ReturnMode {
                quote! {
                    let _result = #call;
                    use #pyo3_path::impl_::pymethods::{#traits};
-                    #check_gil_refs
                    (&_result).#tag().convert(py, _result)
                }
            }
            ReturnMode::ReturnSelf => quote! {
                let _result: #pyo3_path::PyResult<()> = #pyo3_path::callback::convert(py, #call);
                _result?;
-                #check_gil_refs
                #pyo3_path::ffi::Py_XINCREF(_raw_slf);
                ::std::result::Result::Ok(_raw_slf)
            },
@ -1369,12 +1342,10 @@ fn generate_method_body(
    let args = extract_proto_arguments(spec, arguments, extract_error_mode, holders, ctx)?;
    let call = quote! { #cls::#rust_name(#self_arg #(#args),*) };
    Ok(if let Some(return_mode) = return_mode {
-        return_mode.return_call_output(call, ctx, holders)
+        return_mode.return_call_output(call, ctx)
    } else {
-        let check_gil_refs = holders.check_gil_refs();
        quote! {
            let result = #call;
-            #check_gil_refs;
            #pyo3_path::callback::convert(py, result)
        }
    })
--- a/pyo3-macros/Cargo.toml
+++ b/pyo3-macros/Cargo.toml
@ -1,6 +1,6 @@
 [package]
 name = "pyo3-macros"
-version = "0.22.1"
+version = "0.23.0-dev"
 description = "Proc macros for PyO3 package"
 authors = ["PyO3 Project and Contributors <https://github.com/PyO3>"]
 keywords = ["pyo3", "python", "cpython", "ffi"]
@ -22,7 +22,7 @@ gil-refs = ["pyo3-macros-backend/gil-refs"]
 proc-macro2 = { version = "1.0.60", default-features = false }
 quote = "1"
 syn = { version = "2", features = ["full", "extra-traits"] }
-pyo3-macros-backend = { path = "../pyo3-macros-backend", version = "=0.22.1" }
+pyo3-macros-backend = { path = "../pyo3-macros-backend", version = "=0.23.0-dev" }

 [lints]
 workspace = true
--- a/pyo3-macros/src/lib.rs
+++ b/pyo3-macros/src/lib.rs
@ -3,14 +3,14 @@

 #![cfg_attr(docsrs, feature(doc_cfg, doc_auto_cfg))]
 use proc_macro::TokenStream;
-use proc_macro2::{Span, TokenStream as TokenStream2};
+use proc_macro2::TokenStream as TokenStream2;
 use pyo3_macros_backend::{
    build_derive_from_pyobject, build_py_class, build_py_enum, build_py_function, build_py_methods,
    pymodule_function_impl, pymodule_module_impl, PyClassArgs, PyClassMethodsType,
-    PyFunctionOptions,
+    PyFunctionOptions, PyModuleOptions,
 };
 use quote::quote;
-use syn::{parse::Nothing, parse_macro_input, Item};
+use syn::{parse_macro_input, Item};

 /// A proc macro used to implement Python modules.
 ///
@ -24,6 +24,9 @@ use syn::{parse::Nothing, parse_macro_input, Item};
 /// |  Annotation  |  Description |
 /// | :-  | :- |
 /// | `#[pyo3(name = "...")]` | Defines the name of the module in Python. |
+/// | `#[pyo3(submodule)]`    | Skips adding a `PyInit_` FFI symbol to the compiled binary. |
+/// | `#[pyo3(module = "...")]` | Defines the Python `dotted.path` to the parent module for use in introspection. |
+/// | `#[pyo3(crate = "pyo3")]` | Defines the path to PyO3 to use code generated by the macro. |
 ///
 /// For more on creating Python modules see the [module section of the guide][1].
 ///
@ -32,35 +35,32 @@ use syn::{parse::Nothing, parse_macro_input, Item};
 /// `#[pymodule]` implementation generates a hidden module with the same name containing
 /// metadata about the module, which is used by `wrap_pymodule!`).
 ///
-/// [1]: https://pyo3.rs/latest/module.html
+#[doc = concat!("[1]: https://pyo3.rs/v", env!("CARGO_PKG_VERSION"), "/module.html")]
 #[proc_macro_attribute]
 pub fn pymodule(args: TokenStream, input: TokenStream) -> TokenStream {
-    match parse_macro_input!(input as Item) {
+    let options = parse_macro_input!(args as PyModuleOptions);
+
+    let mut ast = parse_macro_input!(input as Item);
+    let expanded = match &mut ast {
        Item::Mod(module) => {
-            let is_submodule = match parse_macro_input!(args as Option<syn::Ident>) {
-                Some(i) if i == "submodule" => true,
-                Some(_) => {
-                    return syn::Error::new(
-                        Span::call_site(),
-                        "#[pymodule] only accepts submodule as an argument",
-                    )
-                    .into_compile_error()
-                    .into();
-                }
-                None => false,
-            };
-            pymodule_module_impl(module, is_submodule)
-        }
-        Item::Fn(function) => {
-            parse_macro_input!(args as Nothing);
-            pymodule_function_impl(function)
+            match pymodule_module_impl(module, options) {
+                // #[pymodule] on a module will rebuild the original ast, so we don't emit it here
+                Ok(expanded) => return expanded.into(),
+                Err(e) => Err(e),
+            }
        }
+        Item::Fn(function) => pymodule_function_impl(function, options),
        unsupported => Err(syn::Error::new_spanned(
            unsupported,
            "#[pymodule] only supports modules and functions.",
        )),
    }
-    .unwrap_or_compile_error()
+    .unwrap_or_compile_error();
+
+    quote!(
+        #ast
+        #expanded
+    )
    .into()
 }

@ -99,17 +99,17 @@ pub fn pyclass(attr: TokenStream, input: TokenStream) -> TokenStream {
 /// multiple `#[pymethods]` blocks for a single `#[pyclass]`.
 /// This will add a transitive dependency on the [`inventory`][3] crate.
 ///
-/// [1]: https://pyo3.rs/latest/class.html#instance-methods
-/// [2]: https://pyo3.rs/latest/features.html#multiple-pymethods
+#[doc = concat!("[1]: https://pyo3.rs/v", env!("CARGO_PKG_VERSION"), "/class.html#instance-methods")]
+#[doc = concat!("[2]: https://pyo3.rs/v", env!("CARGO_PKG_VERSION"), "/features.html#multiple-pymethods")]
 /// [3]: https://docs.rs/inventory/
-/// [4]: https://pyo3.rs/latest/class.html#constructor
-/// [5]: https://pyo3.rs/latest/class.html#object-properties-using-getter-and-setter
-/// [6]: https://pyo3.rs/latest/class.html#static-methods
-/// [7]: https://pyo3.rs/latest/class.html#class-methods
-/// [8]: https://pyo3.rs/latest/class.html#callable-objects
-/// [9]: https://pyo3.rs/latest/class.html#class-attributes
-/// [10]: https://pyo3.rs/latest/class.html#method-arguments
-/// [11]: https://pyo3.rs/latest/class.html#object-properties-using-pyo3get-set
+#[doc = concat!("[4]: https://pyo3.rs/v", env!("CARGO_PKG_VERSION"), "/class.html#constructor")]
+#[doc = concat!("[5]: https://pyo3.rs/v", env!("CARGO_PKG_VERSION"), "/class.html#object-properties-using-getter-and-setter")]
+#[doc = concat!("[6]: https://pyo3.rs/v", env!("CARGO_PKG_VERSION"), "/class.html#static-methods")]
+#[doc = concat!("[7]: https://pyo3.rs/v", env!("CARGO_PKG_VERSION"), "/class.html#class-methods")]
+#[doc = concat!("[8]: https://pyo3.rs/v", env!("CARGO_PKG_VERSION"), "/class.html#callable-objects")]
+#[doc = concat!("[9]: https://pyo3.rs/v", env!("CARGO_PKG_VERSION"), "/class.html#class-attributes")]
+#[doc = concat!("[10]: https://pyo3.rs/v", env!("CARGO_PKG_VERSION"), "/class.html#method-arguments")]
+#[doc = concat!("[11]: https://pyo3.rs/v", env!("CARGO_PKG_VERSION"), "/class.html#object-properties-using-pyo3get-set")]
 #[proc_macro_attribute]
 pub fn pymethods(attr: TokenStream, input: TokenStream) -> TokenStream {
    let methods_type = if cfg!(feature = "multiple-pymethods") {
@ -138,7 +138,7 @@ pub fn pymethods(attr: TokenStream, input: TokenStream) -> TokenStream {
 /// `#[pyfunction]` implementation generates a hidden module with the same name containing
 /// metadata about the function, which is used by `wrap_pyfunction!`).
 ///
-/// [1]: https://pyo3.rs/latest/function.html
+#[doc = concat!("[1]: https://pyo3.rs/v", env!("CARGO_PKG_VERSION"), "/function.html")]
 #[proc_macro_attribute]
 pub fn pyfunction(attr: TokenStream, input: TokenStream) -> TokenStream {
    let mut ast = parse_macro_input!(input as syn::ItemFn);
--- a/pyproject.toml
+++ b/pyproject.toml
@ -3,7 +3,7 @@

 [tool.towncrier]
 filename = "CHANGELOG.md"
-version = "0.22.1"
+version = "0.23.0-dev"
 start_string = "<!-- towncrier release notes start -->\n"
 template = ".towncrier.template.md"
 title_format = "## [{version}] - {project_date}"
--- a/src/conversion.rs
+++ b/src/conversion.rs
@ -8,10 +8,7 @@ use crate::types::PyTuple;
 use crate::{ffi, Borrowed, Bound, Py, PyAny, PyClass, PyObject, PyRef, PyRefMut, Python};
 #[cfg(feature = "gil-refs")]
 use {
-    crate::{
-        err::{self, PyDowncastError},
-        gil, PyNativeType,
-    },
+    crate::{err, gil, PyNativeType},
    std::ptr::NonNull,
 };

@ -395,121 +392,6 @@ where
    }
 }

-/// Trait implemented by Python object types that allow a checked downcast.
-/// If `T` implements `PyTryFrom`, we can convert `&PyAny` to `&T`.
-///
-/// This trait is similar to `std::convert::TryFrom`
-#[cfg(feature = "gil-refs")]
-#[deprecated(since = "0.21.0")]
-pub trait PyTryFrom<'v>: Sized + PyNativeType {
-    /// Cast from a concrete Python object type to PyObject.
-    #[deprecated(
-        since = "0.21.0",
-        note = "use `value.downcast::<T>()` instead of `T::try_from(value)`"
-    )]
-    fn try_from<V: Into<&'v PyAny>>(value: V) -> Result<&'v Self, PyDowncastError<'v>>;
-
-    /// Cast from a concrete Python object type to PyObject. With exact type check.
-    #[deprecated(
-        since = "0.21.0",
-        note = "use `value.downcast_exact::<T>()` instead of `T::try_from_exact(value)`"
-    )]
-    fn try_from_exact<V: Into<&'v PyAny>>(value: V) -> Result<&'v Self, PyDowncastError<'v>>;
-
-    /// Cast a PyAny to a specific type of PyObject. The caller must
-    /// have already verified the reference is for this type.
-    ///
-    /// # Safety
-    ///
-    /// Callers must ensure that the type is valid or risk type confusion.
-    #[deprecated(
-        since = "0.21.0",
-        note = "use `value.downcast_unchecked::<T>()` instead of `T::try_from_unchecked(value)`"
-    )]
-    unsafe fn try_from_unchecked<V: Into<&'v PyAny>>(value: V) -> &'v Self;
-}
-
-/// Trait implemented by Python object types that allow a checked downcast.
-/// This trait is similar to `std::convert::TryInto`
-#[cfg(feature = "gil-refs")]
-#[deprecated(since = "0.21.0")]
-pub trait PyTryInto<T>: Sized {
-    /// Cast from PyObject to a concrete Python object type.
-    #[deprecated(
-        since = "0.21.0",
-        note = "use `value.downcast()` instead of `value.try_into()`"
-    )]
-    fn try_into(&self) -> Result<&T, PyDowncastError<'_>>;
-
-    /// Cast from PyObject to a concrete Python object type. With exact type check.
-    #[deprecated(
-        since = "0.21.0",
-        note = "use `value.downcast()` instead of `value.try_into_exact()`"
-    )]
-    fn try_into_exact(&self) -> Result<&T, PyDowncastError<'_>>;
-}
-
-#[cfg(feature = "gil-refs")]
-#[allow(deprecated)]
-mod implementations {
-    use super::*;
-    use crate::type_object::PyTypeInfo;
-
-    // TryFrom implies TryInto
-    impl<U> PyTryInto<U> for PyAny
-    where
-        U: for<'v> PyTryFrom<'v>,
-    {
-        fn try_into(&self) -> Result<&U, PyDowncastError<'_>> {
-            <U as PyTryFrom<'_>>::try_from(self)
-        }
-        fn try_into_exact(&self) -> Result<&U, PyDowncastError<'_>> {
-            U::try_from_exact(self)
-        }
-    }
-
-    impl<'v, T> PyTryFrom<'v> for T
-    where
-        T: PyTypeInfo<AsRefTarget = Self> + PyNativeType,
-    {
-        fn try_from<V: Into<&'v PyAny>>(value: V) -> Result<&'v Self, PyDowncastError<'v>> {
-            value.into().downcast()
-        }
-
-        fn try_from_exact<V: Into<&'v PyAny>>(value: V) -> Result<&'v Self, PyDowncastError<'v>> {
-            value.into().downcast_exact()
-        }
-
-        #[inline]
-        unsafe fn try_from_unchecked<V: Into<&'v PyAny>>(value: V) -> &'v Self {
-            value.into().downcast_unchecked()
-        }
-    }
-
-    impl<'v, T> PyTryFrom<'v> for crate::PyCell<T>
-    where
-        T: 'v + PyClass,
-    {
-        fn try_from<V: Into<&'v PyAny>>(value: V) -> Result<&'v Self, PyDowncastError<'v>> {
-            value.into().downcast()
-        }
-        fn try_from_exact<V: Into<&'v PyAny>>(value: V) -> Result<&'v Self, PyDowncastError<'v>> {
-            let value = value.into();
-            unsafe {
-                if T::is_exact_type_of(value) {
-                    Ok(Self::try_from_unchecked(value))
-                } else {
-                    Err(PyDowncastError::new(value, T::NAME))
-                }
-            }
-        }
-        #[inline]
-        unsafe fn try_from_unchecked<V: Into<&'v PyAny>>(value: V) -> &'v Self {
-            value.into().downcast_unchecked()
-        }
-    }
-}
-
 /// Converts `()` to an empty Python tuple.
 impl IntoPy<Py<PyTuple>> for () {
    fn into_py(self, py: Python<'_>) -> Py<PyTuple> {
@ -665,51 +547,3 @@ where
 /// })
 /// ```
 mod test_no_clone {}
-
-#[cfg(test)]
-mod tests {
-    #[cfg(feature = "gil-refs")]
-    #[allow(deprecated)]
-    mod deprecated {
-        use super::super::PyTryFrom;
-        use crate::types::{IntoPyDict, PyAny, PyDict, PyList};
-        use crate::{Python, ToPyObject};
-
-        #[test]
-        fn test_try_from() {
-            Python::with_gil(|py| {
-                let list: &PyAny = vec![3, 6, 5, 4, 7].to_object(py).into_ref(py);
-                let dict: &PyAny = vec![("reverse", true)].into_py_dict(py).as_ref();
-
-                assert!(<PyList as PyTryFrom<'_>>::try_from(list).is_ok());
-                assert!(<PyDict as PyTryFrom<'_>>::try_from(dict).is_ok());
-
-                assert!(<PyAny as PyTryFrom<'_>>::try_from(list).is_ok());
-                assert!(<PyAny as PyTryFrom<'_>>::try_from(dict).is_ok());
-            });
-        }
-
-        #[test]
-        fn test_try_from_exact() {
-            Python::with_gil(|py| {
-                let list: &PyAny = vec![3, 6, 5, 4, 7].to_object(py).into_ref(py);
-                let dict: &PyAny = vec![("reverse", true)].into_py_dict(py).as_ref();
-
-                assert!(PyList::try_from_exact(list).is_ok());
-                assert!(PyDict::try_from_exact(dict).is_ok());
-
-                assert!(PyAny::try_from_exact(list).is_err());
-                assert!(PyAny::try_from_exact(dict).is_err());
-            });
-        }
-
-        #[test]
-        fn test_try_from_unchecked() {
-            Python::with_gil(|py| {
-                let list = PyList::new(py, [1, 2, 3]);
-                let val = unsafe { <PyList as PyTryFrom>::try_from_unchecked(list.as_ref()) };
-                assert!(list.is(val));
-            });
-        }
-    }
-}
--- a/src/impl_.rs
+++ b/src/impl_.rs
@ -8,7 +8,6 @@

 #[cfg(feature = "experimental-async")]
 pub mod coroutine;
-pub mod deprecations;
 pub mod exceptions;
 pub mod extract_argument;
 pub mod freelist;
--- a/src/impl_/deprecations.rs
+++ b/src/impl_/deprecations.rs
@ -1,76 +0,0 @@
-//! Symbols used to denote deprecated usages of PyO3's proc macros.
-
-use crate::{PyResult, Python};
-
-#[deprecated(since = "0.20.0", note = "use `#[new]` instead of `#[__new__]`")]
-pub const PYMETHODS_NEW_DEPRECATED_FORM: () = ();
-
-pub fn inspect_type<T>(t: T, _: &GilRefs<T>) -> T {
-    t
-}
-
-pub fn inspect_fn<A, T>(f: fn(A) -> PyResult<T>, _: &GilRefs<A>) -> fn(A) -> PyResult<T> {
-    f
-}
-
-pub struct GilRefs<T>(OptionGilRefs<T>);
-pub struct OptionGilRefs<T>(NotAGilRef<T>);
-pub struct NotAGilRef<T>(std::marker::PhantomData<T>);
-
-pub trait IsGilRef {}
-
-#[cfg(feature = "gil-refs")]
-impl<T: crate::PyNativeType> IsGilRef for &'_ T {}
-
-impl<T> GilRefs<T> {
-    #[allow(clippy::new_without_default)]
-    pub fn new() -> Self {
-        GilRefs(OptionGilRefs(NotAGilRef(std::marker::PhantomData)))
-    }
-}
-
-impl GilRefs<Python<'_>> {
-    #[deprecated(since = "0.21.0", note = "use `wrap_pyfunction_bound!` instead")]
-    pub fn is_python(&self) {}
-}
-
-impl<T: IsGilRef> GilRefs<T> {
-    #[deprecated(
-        since = "0.21.0",
-        note = "use `&Bound<'_, T>` instead for this function argument"
-    )]
-    pub fn function_arg(&self) {}
-    #[deprecated(
-        since = "0.21.0",
-        note = "use `&Bound<'_, PyAny>` as the argument for this `from_py_with` extractor"
-    )]
-    pub fn from_py_with_arg(&self) {}
-}
-
-impl<T: IsGilRef> OptionGilRefs<Option<T>> {
-    #[deprecated(
-        since = "0.21.0",
-        note = "use `Option<&Bound<'_, T>>` instead for this function argument"
-    )]
-    pub fn function_arg(&self) {}
-}
-
-impl<T> NotAGilRef<T> {
-    pub fn function_arg(&self) {}
-    pub fn from_py_with_arg(&self) {}
-    pub fn is_python(&self) {}
-}
-
-impl<T> std::ops::Deref for GilRefs<T> {
-    type Target = OptionGilRefs<T>;
-    fn deref(&self) -> &Self::Target {
-        &self.0
-    }
-}
-
-impl<T> std::ops::Deref for OptionGilRefs<T> {
-    type Target = NotAGilRef<T>;
-    fn deref(&self) -> &Self::Target {
-        &self.0
-    }
-}
--- a/src/impl_/pymodule.rs
+++ b/src/impl_/pymodule.rs
@ -107,7 +107,7 @@ impl ModuleDef {
        // that static data is not reused across interpreters.
        //
        // PyPy does not have subinterpreters, so no need to check interpreter ID.
-        #[cfg(not(any(PyPy, GraalPy, feature = "unsafe-allow-subinterpreters")))]
+        #[cfg(not(any(PyPy, GraalPy)))]
        {
            // PyInterpreterState_Get is only available on 3.9 and later, but is missing
            // from python3.dll for Windows stable API on 3.9
--- a/src/instance.rs
+++ b/src/instance.rs
@ -65,7 +65,19 @@ pub unsafe trait PyNativeType: Sized {
    }
 }

-/// A GIL-attached equivalent to `Py`.
+/// A GIL-attached equivalent to [`Py<T>`].
+///
+/// This type can be thought of as equivalent to the tuple `(Py<T>, Python<'py>)`. By having the `'py`
+/// lifetime of the [`Python<'py>`] token, this ties the lifetime of the [`Bound<'py, T>`] smart pointer
+/// to the lifetime of the GIL and allows PyO3 to call Python APIs at maximum efficiency.
+///
+/// To access the object in situations where the GIL is not held, convert it to [`Py<T>`]
+/// using [`.unbind()`][Bound::unbind]. This includes situations where the GIL is temporarily
+/// released, such as [`Python::allow_threads`](crate::Python::allow_threads)'s closure.
+///
+/// See
+#[doc = concat!("[the guide](https://pyo3.rs/v", env!("CARGO_PKG_VERSION"), "/types.html#boundpy-t)")]
+/// for more detail.
 #[repr(transparent)]
 pub struct Bound<'py, T>(Python<'py>, ManuallyDrop<Py<T>>);

@ -732,7 +744,8 @@ impl<T> IntoPy<PyObject> for Borrowed<'_, '_, T> {
 ///  - [`Py::borrow`], [`Py::try_borrow`], [`Py::borrow_mut`], or [`Py::try_borrow_mut`],
 ///
 /// to get a (mutable) reference to a contained pyclass, using a scheme similar to std's [`RefCell`].
-/// See the [guide entry](https://pyo3.rs/latest/class.html#bound-and-interior-mutability)
+/// See the
+#[doc = concat!("[guide entry](https://pyo3.rs/v", env!("CARGO_PKG_VERSION"), "/class.html#bound-and-interior-mutability)")]
 /// for more information.
 ///  - You can call methods directly on `Py` with [`Py::call_bound`], [`Py::call_method_bound`] and friends.
 ///
@ -1329,8 +1342,11 @@ impl<T> Py<T> {
    /// # }
    /// ```
    #[inline]
-    pub fn clone_ref(&self, py: Python<'_>) -> Py<T> {
-        unsafe { Py::from_borrowed_ptr(py, self.0.as_ptr()) }
+    pub fn clone_ref(&self, _py: Python<'_>) -> Py<T> {
+        unsafe {
+            ffi::Py_INCREF(self.as_ptr());
+            Self::from_non_null(self.0)
+        }
    }

    /// Drops `self` and immediately decreases its reference count.
@ -1369,22 +1385,6 @@ impl<T> Py<T> {
        unsafe { ffi::Py_None() == self.as_ptr() }
    }

-    /// Returns whether the object is Ellipsis, e.g. `...`.
-    ///
-    /// This is equivalent to the Python expression `self is ...`.
-    #[deprecated(since = "0.20.0", note = "use `.is(py.Ellipsis())` instead")]
-    pub fn is_ellipsis(&self) -> bool {
-        unsafe { ffi::Py_Ellipsis() == self.as_ptr() }
-    }
-
-    /// Returns whether the object is considered to be true.
-    ///
-    /// This is equivalent to the Python expression `bool(self)`.
-    #[deprecated(since = "0.21.0", note = "use `.is_truthy()` instead")]
-    pub fn is_true(&self, py: Python<'_>) -> PyResult<bool> {
-        self.is_truthy(py)
-    }
-
    /// Returns whether the object is considered to be true.
    ///
    /// This applies truth value testing equivalent to the Python expression `bool(self)`.
@ -2158,23 +2158,6 @@ a = A()
        })
    }

-    #[test]
-    #[allow(deprecated)]
-    fn test_is_ellipsis() {
-        Python::with_gil(|py| {
-            let v = py
-                .eval_bound("...", None, None)
-                .map_err(|e| e.display(py))
-                .unwrap()
-                .to_object(py);
-
-            assert!(v.is_ellipsis());
-
-            let not_ellipsis = 5.to_object(py);
-            assert!(!not_ellipsis.is_ellipsis());
-        });
-    }
-
    #[test]
    fn test_debug_fmt() {
        Python::with_gil(|py| {
@ -2374,18 +2357,5 @@ a = A()
                }
            })
        }
-
-        #[test]
-        #[cfg(feature = "gil-refs")]
-        #[allow(deprecated)]
-        fn cell_tryfrom() {
-            use crate::{PyCell, PyTryInto};
-            // More detailed tests of the underlying semantics in pycell.rs
-            Python::with_gil(|py| {
-                let instance: &PyAny = Py::new(py, SomeClass(0)).unwrap().into_ref(py);
-                let _: &PyCell<SomeClass> = PyTryInto::try_into(instance).unwrap();
-                let _: &PyCell<SomeClass> = PyTryInto::try_into_exact(instance).unwrap();
-            })
-        }
    }
 }
--- a/src/lib.rs
+++ b/src/lib.rs
@ -295,32 +295,29 @@
 //! [`rust_decimal`]: ./rust_decimal/index.html "Documenation about the `rust_decimal` feature."
 //! [`Decimal`]: https://docs.rs/rust_decimal/latest/rust_decimal/struct.Decimal.html
 //! [`serde`]: <./serde/index.html> "Documentation about the `serde` feature."
-//! [calling_rust]: https://pyo3.rs/latest/python-from-rust.html "Calling Python from Rust - PyO3 user guide"
+#![doc = concat!("[calling_rust]: https://pyo3.rs/v", env!("CARGO_PKG_VERSION"), "/python-from-rust.html \"Calling Python from Rust - PyO3 user guide\"")]
 //! [examples subdirectory]: https://github.com/PyO3/pyo3/tree/main/examples
 //! [feature flags]: https://doc.rust-lang.org/cargo/reference/features.html "Features - The Cargo Book"
 //! [global interpreter lock]: https://docs.python.org/3/glossary.html#term-global-interpreter-lock
 //! [hashbrown]: https://docs.rs/hashbrown
 //! [smallvec]: https://docs.rs/smallvec
 //! [indexmap]: https://docs.rs/indexmap
-//! [manual_builds]: https://pyo3.rs/latest/building-and-distribution.html#manual-builds "Manual builds - Building and Distribution - PyO3 user guide"
+#![doc = concat!("[manual_builds]: https://pyo3.rs/v", env!("CARGO_PKG_VERSION"), "/building-and-distribution.html#manual-builds \"Manual builds - Building and Distribution - PyO3 user guide\"")]
 //! [num-bigint]: https://docs.rs/num-bigint
 //! [num-complex]: https://docs.rs/num-complex
 //! [num-rational]: https://docs.rs/num-rational
 //! [serde]: https://docs.rs/serde
 //! [setuptools-rust]: https://github.com/PyO3/setuptools-rust "Setuptools plugin for Rust extensions"
 //! [the guide]: https://pyo3.rs "PyO3 user guide"
-//! [types]: https://pyo3.rs/latest/types.html "GIL lifetimes, mutability and Python object types"
+#![doc = concat!("[types]: https://pyo3.rs/v", env!("CARGO_PKG_VERSION"), "/types.html \"GIL lifetimes, mutability and Python object types\"")]
 //! [PEP 384]: https://www.python.org/dev/peps/pep-0384 "PEP 384 -- Defining a Stable ABI"
 //! [Python from Rust]: https://github.com/PyO3/pyo3#using-python-from-rust
 //! [Rust from Python]: https://github.com/PyO3/pyo3#using-rust-from-python
-//! [Features chapter of the guide]: https://pyo3.rs/latest/features.html#features-reference "Features Reference - PyO3 user guide"
+#![doc = concat!("[Features chapter of the guide]: https://pyo3.rs/v", env!("CARGO_PKG_VERSION"), "/features.html#features-reference \"Features Reference - PyO3 user guide\"")]
 //! [`Ungil`]: crate::marker::Ungil
 pub use crate::class::*;
 pub use crate::conversion::{AsPyPointer, FromPyObject, IntoPy, ToPyObject};
 #[cfg(feature = "gil-refs")]
-#[allow(deprecated)]
-pub use crate::conversion::{FromPyPointer, PyTryFrom, PyTryInto};
-#[cfg(feature = "gil-refs")]
 pub use crate::err::PyDowncastError;
 pub use crate::err::{DowncastError, DowncastIntoError, PyErr, PyErrArguments, PyResult, ToPyErr};
 #[cfg(feature = "gil-refs")]
@ -382,30 +379,6 @@ pub mod class {
        pub use crate::pyclass::CompareOp;
    }

-    /// Old module which contained some implementation details of the `#[pyproto]` module.
-    ///
-    /// Prefer using the same content from `pyo3::pyclass`, e.g. `use pyo3::pyclass::IterANextOutput` instead
-    /// of `use pyo3::class::pyasync::IterANextOutput`.
-    ///
-    /// For compatibility reasons this has not yet been removed, however will be done so
-    /// once <https://github.com/rust-lang/rust/issues/30827> is resolved.
-    pub mod pyasync {
-        #[allow(deprecated)]
-        pub use crate::pyclass::{IterANextOutput, PyIterANextOutput};
-    }
-
-    /// Old module which contained some implementation details of the `#[pyproto]` module.
-    ///
-    /// Prefer using the same content from `pyo3::pyclass`, e.g. `use pyo3::pyclass::IterNextOutput` instead
-    /// of `use pyo3::class::pyasync::IterNextOutput`.
-    ///
-    /// For compatibility reasons this has not yet been removed, however will be done so
-    /// once <https://github.com/rust-lang/rust/issues/30827> is resolved.
-    pub mod iter {
-        #[allow(deprecated)]
-        pub use crate::pyclass::{IterNextOutput, PyIterNextOutput};
-    }
-
    /// Old module which contained some implementation details of the `#[pyproto]` module.
    ///
    /// Prefer using the same content from `pyo3::pyclass`, e.g. `use pyo3::pyclass::PyTraverseError` instead
@ -461,7 +434,6 @@ pub mod marshal;
 #[macro_use]
 pub mod sync;
 pub mod panic;
-pub mod prelude;
 pub mod pybacked;
 pub mod pycell;
 pub mod pyclass;
@ -484,7 +456,7 @@ pub use pyo3_macros::{pyfunction, pymethods, pymodule, FromPyObject};
 /// For more on creating Python classes,
 /// see the [class section of the guide][1].
 ///
-/// [1]: https://pyo3.rs/latest/class.html
+#[doc = concat!("[1]: https://pyo3.rs/v", env!("CARGO_PKG_VERSION"), "/class.html")]
 #[cfg(feature = "macros")]
 pub use pyo3_macros::pyclass;

@ -495,15 +467,9 @@ mod macros;
 #[cfg(feature = "experimental-inspect")]
 pub mod inspect;

-/// Ths module only contains re-exports of pyo3 deprecation warnings and exists
-/// purely to make compiler error messages nicer.
-///
-/// (The compiler uses this module in error messages, probably because it's a public
-/// re-export at a shorter path than `pyo3::impl_::deprecations`.)
-#[doc(hidden)]
-pub mod deprecations {
-    pub use crate::impl_::deprecations::*;
-}
+// Putting the declaration of prelude at the end seems to help encourage rustc and rustdoc to prefer using
+// other paths to the same items. (e.g. `pyo3::types::PyAnyMethods` instead of `pyo3::prelude::PyAnyMethods`).
+pub mod prelude;

 /// Test readme and user guide
 #[cfg(doctest)]
--- a/src/macros.rs
+++ b/src/macros.rs
@ -145,12 +145,8 @@ macro_rules! wrap_pyfunction {
    };
    ($function:path, $py_or_module:expr) => {{
        use $function as wrapped_pyfunction;
-        let check_gil_refs = $crate::impl_::deprecations::GilRefs::new();
-        let py_or_module =
-            $crate::impl_::deprecations::inspect_type($py_or_module, &check_gil_refs);
-        check_gil_refs.is_python();
        $crate::impl_::pyfunction::WrapPyFunctionArg::wrap_pyfunction(
-            py_or_module,
+            $py_or_module,
            &wrapped_pyfunction::_PYO3_DEF,
        )
    }};
--- a/src/marker.rs
+++ b/src/marker.rs
@ -126,10 +126,10 @@ use crate::types::{
    PyAny, PyDict, PyEllipsis, PyModule, PyNone, PyNotImplemented, PyString, PyType,
 };
 use crate::version::PythonVersionInfo;
-use crate::{ffi, Bound, IntoPy, Py, PyObject, PyTypeInfo};
 #[allow(deprecated)]
 #[cfg(feature = "gil-refs")]
-use crate::{gil::GILPool, FromPyPointer, PyNativeType};
+use crate::{conversion::FromPyPointer, gil::GILPool, PyNativeType};
+use crate::{ffi, Bound, IntoPy, Py, PyObject, PyTypeInfo};
 use std::ffi::{CStr, CString};
 use std::marker::PhantomData;
 use std::os::raw::c_int;
@ -801,42 +801,6 @@ impl<'py> Python<'py> {
        PythonVersionInfo::from_str(version_number_str).unwrap()
    }

-    /// Registers the object in the release pool, and tries to downcast to specific type.
-    #[cfg(feature = "gil-refs")]
-    #[deprecated(
-        since = "0.21.0",
-        note = "use `obj.downcast_bound::<T>(py)` instead of `py.checked_cast_as::<T>(obj)`"
-    )]
-    pub fn checked_cast_as<T>(
-        self,
-        obj: PyObject,
-    ) -> Result<&'py T, crate::err::PyDowncastError<'py>>
-    where
-        T: crate::PyTypeCheck<AsRefTarget = T>,
-    {
-        #[allow(deprecated)]
-        obj.into_ref(self).downcast()
-    }
-
-    /// Registers the object in the release pool, and does an unchecked downcast
-    /// to the specific type.
-    ///
-    /// # Safety
-    ///
-    /// Callers must ensure that ensure that the cast is valid.
-    #[cfg(feature = "gil-refs")]
-    #[deprecated(
-        since = "0.21.0",
-        note = "use `obj.downcast_bound_unchecked::<T>(py)` instead of `py.cast_as::<T>(obj)`"
-    )]
-    pub unsafe fn cast_as<T>(self, obj: PyObject) -> &'py T
-    where
-        T: crate::type_object::HasPyGilRef<AsRefTarget = T>,
-    {
-        #[allow(deprecated)]
-        obj.into_ref(self).downcast_unchecked()
-    }
-
    /// Registers the object pointer in the release pool,
    /// and does an unchecked downcast to the specific type.
    ///
--- a/src/prelude.rs
+++ b/src/prelude.rs
@ -9,9 +9,6 @@
 //! ```

 pub use crate::conversion::{FromPyObject, IntoPy, ToPyObject};
-#[cfg(feature = "gil-refs")]
-#[allow(deprecated)]
-pub use crate::conversion::{PyTryFrom, PyTryInto};
 pub use crate::err::{PyErr, PyResult};
 pub use crate::instance::{Borrowed, Bound, Py, PyObject};
 pub use crate::marker::Python;
--- a/src/pyclass.rs
+++ b/src/pyclass.rs
@ -1,8 +1,5 @@
 //! `PyClass` and related traits.
-use crate::{
-    callback::IntoPyCallbackOutput, ffi, impl_::pyclass::PyClassImpl, IntoPy, PyObject, PyResult,
-    PyTypeInfo, Python,
-};
+use crate::{ffi, impl_::pyclass::PyClassImpl, PyTypeInfo};
 use std::{cmp::Ordering, os::raw::c_int};

 mod create_type_object;
@ -99,111 +96,6 @@ impl CompareOp {
    }
 }

-/// Output of `__next__` which can either `yield` the next value in the iteration, or
-/// `return` a value to raise `StopIteration` in Python.
-///
-/// Usage example:
-///
-/// ```rust
-/// # #![allow(deprecated)]
-/// use pyo3::prelude::*;
-/// use pyo3::iter::IterNextOutput;
-///
-/// #[pyclass]
-/// struct PyClassIter {
-///     count: usize,
-/// }
-///
-/// #[pymethods]
-/// impl PyClassIter {
-///     #[new]
-///     pub fn new() -> Self {
-///         PyClassIter { count: 0 }
-///     }
-///
-///     fn __next__(&mut self) -> IterNextOutput<usize, &'static str> {
-///         if self.count < 5 {
-///             self.count += 1;
-///             // Given an instance `counter`, First five `next(counter)` calls yield 1, 2, 3, 4, 5.
-///             IterNextOutput::Yield(self.count)
-///         } else {
-///             // At the sixth time, we get a `StopIteration` with `'Ended'`.
-///             //     try:
-///             //         next(counter)
-///             //     except StopIteration as e:
-///             //         assert e.value == 'Ended'
-///             IterNextOutput::Return("Ended")
-///         }
-///     }
-/// }
-/// ```
-#[deprecated(since = "0.21.0", note = "Use `Option` or `PyStopIteration` instead.")]
-pub enum IterNextOutput<T, U> {
-    /// The value yielded by the iterator.
-    Yield(T),
-    /// The `StopIteration` object.
-    Return(U),
-}
-
-/// Alias of `IterNextOutput` with `PyObject` yield & return values.
-#[deprecated(since = "0.21.0", note = "Use `Option` or `PyStopIteration` instead.")]
-#[allow(deprecated)]
-pub type PyIterNextOutput = IterNextOutput<PyObject, PyObject>;
-
-#[allow(deprecated)]
-impl<T, U> IntoPyCallbackOutput<*mut ffi::PyObject> for IterNextOutput<T, U>
-where
-    T: IntoPy<PyObject>,
-    U: IntoPy<PyObject>,
-{
-    fn convert(self, py: Python<'_>) -> PyResult<*mut ffi::PyObject> {
-        match self {
-            IterNextOutput::Yield(o) => Ok(o.into_py(py).into_ptr()),
-            IterNextOutput::Return(o) => {
-                Err(crate::exceptions::PyStopIteration::new_err(o.into_py(py)))
-            }
-        }
-    }
-}
-
-/// Output of `__anext__`.
-///
-/// <https://docs.python.org/3/reference/expressions.html#agen.__anext__>
-#[deprecated(
-    since = "0.21.0",
-    note = "Use `Option` or `PyStopAsyncIteration` instead."
-)]
-pub enum IterANextOutput<T, U> {
-    /// An expression which the generator yielded.
-    Yield(T),
-    /// A `StopAsyncIteration` object.
-    Return(U),
-}
-
-/// An [IterANextOutput] of Python objects.
-#[deprecated(
-    since = "0.21.0",
-    note = "Use `Option` or `PyStopAsyncIteration` instead."
-)]
-#[allow(deprecated)]
-pub type PyIterANextOutput = IterANextOutput<PyObject, PyObject>;
-
-#[allow(deprecated)]
-impl<T, U> IntoPyCallbackOutput<*mut ffi::PyObject> for IterANextOutput<T, U>
-where
-    T: IntoPy<PyObject>,
-    U: IntoPy<PyObject>,
-{
-    fn convert(self, py: Python<'_>) -> PyResult<*mut ffi::PyObject> {
-        match self {
-            IterANextOutput::Yield(o) => Ok(o.into_py(py).into_ptr()),
-            IterANextOutput::Return(o) => Err(crate::exceptions::PyStopAsyncIteration::new_err(
-                o.into_py(py),
-            )),
-        }
-    }
-}
-
 /// A workaround for [associated const equality](https://github.com/rust-lang/rust/issues/92827).
 ///
 /// This serves to have True / False values in the [`PyClass`] trait's `Frozen` type.
--- a/src/sync.rs
+++ b/src/sync.rs
@ -59,7 +59,9 @@ unsafe impl<T> Sync for GILProtected<T> where T: Send {}
 /// Unlike `once_cell::sync` which blocks threads to achieve thread safety, this implementation
 /// uses the Python GIL to mediate concurrent access. This helps in cases where `once_cell` or
 /// `lazy_static`'s synchronization strategy can lead to deadlocks when interacting with the Python
-/// GIL. For an example, see [the FAQ section](https://pyo3.rs/latest/faq.html) of the guide.
+/// GIL. For an example, see
+#[doc = concat!("[the FAQ section](https://pyo3.rs/v", env!("CARGO_PKG_VERSION"), "/faq.html)")]
+/// of the guide.
 ///
 /// Note that:
 ///  1) `get_or_init` and `get_or_try_init` do not protect against infinite recursion
--- a/src/tests/hygiene/misc.rs
+++ b/src/tests/hygiene/misc.rs
@ -1,17 +1,13 @@
-#![no_implicit_prelude]
+#[derive(crate::FromPyObject)]
+#[pyo3(crate = "crate")]
+struct Derive1(i32); // newtype case

 #[derive(crate::FromPyObject)]
 #[pyo3(crate = "crate")]
-struct Derive1(#[allow(dead_code)] i32); // newtype case
-
-#[derive(crate::FromPyObject)]
-#[pyo3(crate = "crate")]
-#[allow(dead_code)]
 struct Derive2(i32, i32); // tuple case

 #[derive(crate::FromPyObject)]
 #[pyo3(crate = "crate")]
-#[allow(dead_code)]
 struct Derive3 {
    f: i32,
    #[pyo3(item(42))]
@ -20,7 +16,6 @@ struct Derive3 {

 #[derive(crate::FromPyObject)]
 #[pyo3(crate = "crate")]
-#[allow(dead_code)]
 enum Derive4 {
    A(i32),
    B { f: i32 },
@ -29,23 +24,16 @@ enum Derive4 {
 crate::create_exception!(mymodule, CustomError, crate::exceptions::PyException);
 crate::import_exception!(socket, gaierror);

-#[allow(dead_code)]
 fn intern(py: crate::Python<'_>) {
    let _foo = crate::intern!(py, "foo");
    let _bar = crate::intern!(py, stringify!(bar));
 }

-#[allow(dead_code)]
 #[cfg(not(PyPy))]
 fn append_to_inittab() {
    #[crate::pymodule]
    #[pyo3(crate = "crate")]
-    #[allow(clippy::unnecessary_wraps)]
-    fn module_for_inittab(
-        _: crate::Python<'_>,
-        _: &crate::Bound<'_, crate::types::PyModule>,
-    ) -> crate::PyResult<()> {
-        ::std::result::Result::Ok(())
-    }
+    mod module_for_inittab {}
+
    crate::append_to_inittab!(module_for_inittab);
 }
--- a/src/tests/hygiene/mod.rs
+++ b/src/tests/hygiene/mod.rs
@ -1,3 +1,6 @@
+#![no_implicit_prelude]
+#![allow(dead_code, unused_variables, clippy::unnecessary_wraps)]
+
 // The modules in this test are used to check PyO3 macro expansion is hygienic. By locating the test
 // inside the crate the global `::pyo3` namespace is not available, so in combination with
 // #[pyo3(crate = "crate")] this validates that all macro expansion respects the setting.
--- a/src/tests/hygiene/pyclass.rs
+++ b/src/tests/hygiene/pyclass.rs
@ -1,6 +1,3 @@
-#![no_implicit_prelude]
-#![allow(unused_variables)]
-
 #[crate::pyclass]
 #[pyo3(crate = "crate")]
 #[derive(::std::clone::Clone)]
--- a/src/tests/hygiene/pyfunction.rs
+++ b/src/tests/hygiene/pyfunction.rs
@ -1,6 +1,3 @@
-#![no_implicit_prelude]
-#![allow(unused_variables, clippy::unnecessary_wraps)]
-
 #[crate::pyfunction]
 #[pyo3(crate = "crate")]
 fn do_something(x: i32) -> crate::PyResult<i32> {
@ -8,19 +5,9 @@ fn do_something(x: i32) -> crate::PyResult<i32> {
 }

 #[test]
-#[cfg(feature = "gil-refs")]
 fn invoke_wrap_pyfunction() {
    crate::Python::with_gil(|py| {
-        #[allow(deprecated)]
-        let func = crate::wrap_pyfunction!(do_something)(py).unwrap();
-        crate::py_run!(py, func, r#"func(5)"#);
-    });
-}
-
-#[test]
-fn invoke_wrap_pyfunction_bound() {
-    crate::Python::with_gil(|py| {
-        let func = crate::wrap_pyfunction_bound!(do_something, py).unwrap();
+        let func = crate::wrap_pyfunction!(do_something, py).unwrap();
        crate::py_run!(py, func, r#"func(5)"#);
    });
 }
--- a/src/tests/hygiene/pymethods.rs
+++ b/src/tests/hygiene/pymethods.rs
@ -1,6 +1,3 @@
-#![no_implicit_prelude]
-#![allow(unused_variables, clippy::unnecessary_wraps)]
-
 #[crate::pyclass]
 #[pyo3(crate = "crate")]
 pub struct Dummy;
--- a/src/tests/hygiene/pymodule.rs
+++ b/src/tests/hygiene/pymodule.rs
@ -1,51 +1,36 @@
-#![no_implicit_prelude]
-#![allow(unused_variables, clippy::unnecessary_wraps)]
-
 #[crate::pyfunction]
 #[pyo3(crate = "crate")]
 fn do_something(x: i32) -> crate::PyResult<i32> {
    ::std::result::Result::Ok(x)
 }

-#[cfg(feature = "gil-refs")]
-#[allow(deprecated)]
 #[crate::pymodule]
 #[pyo3(crate = "crate")]
-fn foo(_py: crate::Python<'_>, _m: &crate::types::PyModule) -> crate::PyResult<()> {
-    ::std::result::Result::Ok(())
-}
-
-#[crate::pymodule]
-#[pyo3(crate = "crate")]
-fn foo_bound(
+fn foo(
    _py: crate::Python<'_>,
    _m: &crate::Bound<'_, crate::types::PyModule>,
 ) -> crate::PyResult<()> {
    ::std::result::Result::Ok(())
 }

-#[cfg(feature = "gil-refs")]
-#[allow(deprecated)]
 #[crate::pymodule]
 #[pyo3(crate = "crate")]
-fn my_module(_py: crate::Python<'_>, m: &crate::types::PyModule) -> crate::PyResult<()> {
-    m.add_function(crate::wrap_pyfunction!(do_something, m)?)?;
-    m.add_wrapped(crate::wrap_pymodule!(foo))?;
-
-    ::std::result::Result::Ok(())
-}
-
-#[crate::pymodule]
-#[pyo3(crate = "crate")]
-fn my_module_bound(m: &crate::Bound<'_, crate::types::PyModule>) -> crate::PyResult<()> {
+fn my_module(m: &crate::Bound<'_, crate::types::PyModule>) -> crate::PyResult<()> {
    <crate::Bound<'_, crate::types::PyModule> as crate::types::PyModuleMethods>::add_function(
        m,
        crate::wrap_pyfunction_bound!(do_something, m)?,
    )?;
    <crate::Bound<'_, crate::types::PyModule> as crate::types::PyModuleMethods>::add_wrapped(
        m,
-        crate::wrap_pymodule!(foo_bound),
+        crate::wrap_pymodule!(foo),
    )?;

    ::std::result::Result::Ok(())
 }
+
+#[crate::pymodule(submodule)]
+#[pyo3(crate = "crate")]
+mod my_module_declarative {
+    #[pymodule_export]
+    use super::{do_something, foo};
+}
--- a/src/types/any.rs
+++ b/src/types/any.rs
@ -19,26 +19,15 @@ use std::os::raw::c_int;

 /// Represents any Python object.
 ///
-/// It currently only appears as a *reference*, `&PyAny`,
-/// with a lifetime that represents the scope during which the GIL is held.
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PyAny>`][crate::Py] or [`Bound<'py, PyAny>`][Bound].
 ///
-/// `PyAny` has some interesting properties, which it shares
-/// with the other [native Python types](crate::types):
+/// For APIs available on all Python objects, see the [`PyAnyMethods`] trait which is implemented for
+/// [`Bound<'py, PyAny>`][Bound].
 ///
-/// - It can only be obtained and used while the GIL is held,
-///   therefore its API does not require a [`Python<'py>`](crate::Python) token.
-/// - It can't be used in situations where the GIL is temporarily released,
-///   such as [`Python::allow_threads`](crate::Python::allow_threads)'s closure.
-/// - The underlying Python object, if mutable, can be mutated through any reference.
-/// - It can be converted to the GIL-independent [`Py`]`<`[`PyAny`]`>`,
-///   allowing it to outlive the GIL scope. However, using [`Py`]`<`[`PyAny`]`>`'s API
-///   *does* require a [`Python<'py>`](crate::Python) token.
-///
-/// It can be cast to a concrete type with PyAny::downcast (for native Python types only)
-/// and FromPyObject::extract. See their documentation for more information.
-///
-/// See [the guide](https://pyo3.rs/latest/types.html) for an explanation
-/// of the different Python object types.
+/// See
+#[doc = concat!("[the guide](https://pyo3.rs/v", env!("CARGO_PKG_VERSION"), "/types.html#concrete-python-types)")]
+/// for an explanation of the different Python object types.
 #[repr(transparent)]
 pub struct PyAny(UnsafeCell<ffi::PyObject>);

@ -592,14 +581,6 @@ impl PyAny {
            .map(Bound::into_gil_ref)
    }

-    /// Returns whether the object is considered to be true.
-    ///
-    /// This is equivalent to the Python expression `bool(self)`.
-    #[deprecated(since = "0.21.0", note = "use `.is_truthy()` instead")]
-    pub fn is_true(&self) -> PyResult<bool> {
-        self.is_truthy()
-    }
-
    /// Returns whether the object is considered to be true.
    ///
    /// This applies truth value testing equivalent to the Python expression `bool(self)`.
@ -615,14 +596,6 @@ impl PyAny {
        self.as_borrowed().is_none()
    }

-    /// Returns whether the object is Ellipsis, e.g. `...`.
-    ///
-    /// This is equivalent to the Python expression `self is ...`.
-    #[deprecated(since = "0.20.0", note = "use `.is(py.Ellipsis())` instead")]
-    pub fn is_ellipsis(&self) -> bool {
-        self.as_borrowed().is_ellipsis()
-    }
-
    /// Returns true if the sequence or mapping has a length of 0.
    ///
    /// This is equivalent to the Python expression `len(self) == 0`.
@ -1506,6 +1479,7 @@ pub trait PyAnyMethods<'py>: crate::sealed::Sealed {
    /// Returns whether the object is Ellipsis, e.g. `...`.
    ///
    /// This is equivalent to the Python expression `self is ...`.
+    #[deprecated(since = "0.23.0", note = "use `.is(py.Ellipsis())` instead")]
    fn is_ellipsis(&self) -> bool;

    /// Returns true if the sequence or mapping has a length of 0.
@ -2796,6 +2770,7 @@ class SimpleClass:
    }

    #[test]
+    #[allow(deprecated)]
    fn test_is_ellipsis() {
        Python::with_gil(|py| {
            let v = py
--- a/src/types/boolobject.rs
+++ b/src/types/boolobject.rs
@ -11,6 +11,12 @@ use crate::{
 use super::any::PyAnyMethods;

 /// Represents a Python `bool`.
+///
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PyBool>`][crate::Py] or [`Bound<'py, PyBool>`][Bound].
+///
+/// For APIs available on `bool` objects, see the [`PyBoolMethods`] trait which is implemented for
+/// [`Bound<'py, PyBool>`][Bound].
 #[repr(transparent)]
 pub struct PyBool(PyAny);

--- a/src/types/bytearray.rs
+++ b/src/types/bytearray.rs
@ -9,6 +9,12 @@ use crate::{AsPyPointer, PyNativeType};
 use std::slice;

 /// Represents a Python `bytearray`.
+///
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PyByteArray>`][crate::Py] or [`Bound<'py, PyByteArray>`][Bound].
+///
+/// For APIs available on `bytearray` objects, see the [`PyByteArrayMethods`] trait which is implemented for
+/// [`Bound<'py, PyByteArray>`][Bound].
 #[repr(transparent)]
 pub struct PyByteArray(PyAny);

--- a/src/types/bytes.rs
+++ b/src/types/bytes.rs
@ -12,10 +12,16 @@ use std::str;
 ///
 /// This type is immutable.
 ///
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PyBytes>`][crate::Py] or [`Bound<'py, PyBytes>`][Bound].
+///
+/// For APIs available on `bytes` objects, see the [`PyBytesMethods`] trait which is implemented for
+/// [`Bound<'py, PyBytes>`][Bound].
+///
 /// # Equality
 ///
-/// For convenience, [`Bound<'py, PyBytes>`] implements [`PartialEq<[u8]>`] to allow comparing the
-/// data in the Python bytes to a Rust `[u8]`.
+/// For convenience, [`Bound<'py, PyBytes>`][Bound] implements [`PartialEq<[u8]>`][PartialEq] to allow comparing the
+/// data in the Python bytes to a Rust `[u8]` byte slice.
 ///
 /// This is not always the most appropriate way to compare Python bytes, as Python bytes subclasses
 /// may have different equality semantics. In situations where subclasses overriding equality might be
--- a/src/types/capsule.rs
+++ b/src/types/capsule.rs
@ -15,6 +15,11 @@ use std::os::raw::{c_char, c_int, c_void};
 /// > in one module available to other modules, so the regular import mechanism can
 /// > be used to access C APIs defined in dynamically loaded modules.
 ///
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PyCapsule>`][crate::Py] or [`Bound<'py, PyCapsule>`][Bound].
+///
+/// For APIs available on capsule objects, see the [`PyCapsuleMethods`] trait which is implemented for
+/// [`Bound<'py, PyCapsule>`][Bound].
 ///
 /// # Example
 /// ```
--- a/src/types/code.rs
+++ b/src/types/code.rs
@ -2,6 +2,9 @@ use crate::ffi;
 use crate::PyAny;

 /// Represents a Python code object.
+///
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PyCode>`][crate::Py] or [`Bound<'py, PyCode>`][crate::Bound].
 #[repr(transparent)]
 pub struct PyCode(PyAny);

--- a/src/types/complex.rs
+++ b/src/types/complex.rs
@ -7,6 +7,12 @@ use std::os::raw::c_double;

 /// Represents a Python [`complex`](https://docs.python.org/3/library/functions.html#complex) object.
 ///
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PyComplex>`][crate::Py] or [`Bound<'py, PyComplex>`][Bound].
+///
+/// For APIs available on `complex` objects, see the [`PyComplexMethods`] trait which is implemented for
+/// [`Bound<'py, PyComplex>`][Bound].
+///
 /// Note that `PyComplex` supports only basic operations. For advanced operations
 /// consider using [num-complex](https://docs.rs/num-complex)'s [`Complex`] type instead.
 /// This optional dependency can be activated with the `num-complex` feature flag.
--- a/src/types/datetime.rs
+++ b/src/types/datetime.rs
@ -191,7 +191,10 @@ pub trait PyTzInfoAccess<'py> {
    fn get_tzinfo_bound(&self) -> Option<Bound<'py, PyTzInfo>>;
 }

-/// Bindings around `datetime.date`
+/// Bindings around `datetime.date`.
+///
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PyDate>`][crate::Py] or [`Bound<'py, PyDate>`][Bound].
 #[repr(transparent)]
 pub struct PyDate(PyAny);
 pyobject_native_type!(
@ -279,7 +282,10 @@ impl PyDateAccess for Bound<'_, PyDate> {
    }
 }

-/// Bindings for `datetime.datetime`
+/// Bindings for `datetime.datetime`.
+///
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PyDateTime>`][crate::Py] or [`Bound<'py, PyDateTime>`][Bound].
 #[repr(transparent)]
 pub struct PyDateTime(PyAny);
 pyobject_native_type!(
@ -578,7 +584,10 @@ impl<'py> PyTzInfoAccess<'py> for Bound<'py, PyDateTime> {
    }
 }

-/// Bindings for `datetime.time`
+/// Bindings for `datetime.time`.
+///
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PyTime>`][crate::Py] or [`Bound<'py, PyTime>`][Bound].
 #[repr(transparent)]
 pub struct PyTime(PyAny);
 pyobject_native_type!(
@ -781,6 +790,9 @@ impl<'py> PyTzInfoAccess<'py> for Bound<'py, PyTime> {

 /// Bindings for `datetime.tzinfo`.
 ///
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PyTzInfo>`][crate::Py] or [`Bound<'py, PyTzInfo>`][Bound].
+///
 /// This is an abstract base class and cannot be constructed directly.
 /// For concrete time zone implementations, see [`timezone_utc_bound`] and
 /// the [`zoneinfo` module](https://docs.python.org/3/library/zoneinfo.html).
@ -834,7 +846,10 @@ pub(crate) fn timezone_from_offset<'py>(
    }
 }

-/// Bindings for `datetime.timedelta`
+/// Bindings for `datetime.timedelta`.
+///
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PyDelta>`][crate::Py] or [`Bound<'py, PyDelta>`][Bound].
 #[repr(transparent)]
 pub struct PyDelta(PyAny);
 pyobject_native_type!(
--- a/src/types/dict.rs
+++ b/src/types/dict.rs
@ -11,6 +11,12 @@ use crate::PyNativeType;
 use crate::{ffi, Python, ToPyObject};

 /// Represents a Python `dict`.
+///
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PyDict>`][crate::Py] or [`Bound<'py, PyDict>`][Bound].
+///
+/// For APIs available on `dict` objects, see the [`PyDictMethods`] trait which is implemented for
+/// [`Bound<'py, PyDict>`][Bound].
 #[repr(transparent)]
 pub struct PyDict(PyAny);

@ -191,19 +197,6 @@ impl PyDict {
        }
    }

-    /// Deprecated version of `get_item`.
-    #[deprecated(
-        since = "0.20.0",
-        note = "this is now equivalent to `PyDict::get_item`"
-    )]
-    #[inline]
-    pub fn get_item_with_error<K>(&self, key: K) -> PyResult<Option<&PyAny>>
-    where
-        K: ToPyObject,
-    {
-        self.get_item(key)
-    }
-
    /// Sets an item value.
    ///
    /// This is equivalent to the Python statement `self[key] = value`.
@ -951,31 +944,6 @@ mod tests {
        });
    }

-    #[test]
-    #[allow(deprecated)]
-    #[cfg(all(not(any(PyPy, GraalPy)), feature = "gil-refs"))]
-    fn test_get_item_with_error() {
-        Python::with_gil(|py| {
-            let mut v = HashMap::new();
-            v.insert(7, 32);
-            let ob = v.to_object(py);
-            let dict = ob.downcast::<PyDict>(py).unwrap();
-            assert_eq!(
-                32,
-                dict.get_item_with_error(7i32)
-                    .unwrap()
-                    .unwrap()
-                    .extract::<i32>()
-                    .unwrap()
-            );
-            assert!(dict.get_item_with_error(8i32).unwrap().is_none());
-            assert!(dict
-                .get_item_with_error(dict)
-                .unwrap_err()
-                .is_instance_of::<crate::exceptions::PyTypeError>(py));
-        });
-    }
-
    #[test]
    fn test_set_item() {
        Python::with_gil(|py| {
--- a/src/types/ellipsis.rs
+++ b/src/types/ellipsis.rs
@ -4,6 +4,9 @@ use crate::{
 };

 /// Represents the Python `Ellipsis` object.
+///
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PyEllipsis>`][crate::Py] or [`Bound<'py, PyEllipsis>`][Bound].
 #[repr(transparent)]
 pub struct PyEllipsis(PyAny);

--- a/src/types/float.rs
+++ b/src/types/float.rs
@ -11,9 +11,15 @@ use std::os::raw::c_double;

 /// Represents a Python `float` object.
 ///
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PyFloat>`][crate::Py] or [`Bound<'py, PyFloat>`][Bound].
+///
+/// For APIs available on `float` objects, see the [`PyFloatMethods`] trait which is implemented for
+/// [`Bound<'py, PyFloat>`][Bound].
+///
 /// You can usually avoid directly working with this type
-/// by using [`ToPyObject`] and [`extract`](PyAnyMethods::extract)
-/// with `f32`/`f64`.
+/// by using [`ToPyObject`] and [`extract`][PyAnyMethods::extract]
+/// with [`f32`]/[`f64`].
 #[repr(transparent)]
 pub struct PyFloat(PyAny);

--- a/src/types/frame.rs
+++ b/src/types/frame.rs
@ -2,6 +2,9 @@ use crate::ffi;
 use crate::PyAny;

 /// Represents a Python frame.
+///
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PyFrame>`][crate::Py] or [`Bound<'py, PyFrame>`][crate::Bound].
 #[repr(transparent)]
 pub struct PyFrame(PyAny);

--- a/src/types/frozenset.rs
+++ b/src/types/frozenset.rs
@ -56,7 +56,13 @@ impl<'py> PyFrozenSetBuilder<'py> {
    }
 }

-/// Represents a  Python `frozenset`
+/// Represents a  Python `frozenset`.
+///
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PyFrozenSet>`][crate::Py] or [`Bound<'py, PyFrozenSet>`][Bound].
+///
+/// For APIs available on `frozenset` objects, see the [`PyFrozenSetMethods`] trait which is implemented for
+/// [`Bound<'py, PyFrozenSet>`][Bound].
 #[repr(transparent)]
 pub struct PyFrozenSet(PyAny);

--- a/src/types/function.rs
+++ b/src/types/function.rs
@ -16,6 +16,9 @@ use std::cell::UnsafeCell;
 use std::ffi::CStr;

 /// Represents a builtin Python function object.
+///
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PyCFunction>`][crate::Py] or [`Bound<'py, PyCFunction>`][Bound].
 #[repr(transparent)]
 pub struct PyCFunction(PyAny);

@ -241,6 +244,9 @@ struct ClosureDestructor<F> {
 unsafe impl<F: Send> Send for ClosureDestructor<F> {}

 /// Represents a Python function object.
+///
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PyFunction>`][crate::Py] or [`Bound<'py, PyFunction>`][Bound].
 #[repr(transparent)]
 #[cfg(all(not(Py_LIMITED_API), not(all(PyPy, not(Py_3_8)))))]
 pub struct PyFunction(PyAny);
--- a/src/types/iterator.rs
+++ b/src/types/iterator.rs
@ -3,10 +3,13 @@ use crate::instance::Borrowed;
 use crate::py_result_ext::PyResultExt;
 use crate::{ffi, Bound, PyAny, PyErr, PyResult, PyTypeCheck};
 #[cfg(feature = "gil-refs")]
-use crate::{AsPyPointer, PyDowncastError, PyNativeType};
+use crate::{AsPyPointer, PyNativeType};

 /// A Python iterator object.
 ///
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PyIterator>`][crate::Py] or [`Bound<'py, PyIterator>`][Bound].
+///
 /// # Examples
 ///
 /// ```rust
@ -127,31 +130,6 @@ impl PyTypeCheck for PyIterator {
    }
 }

-#[cfg(feature = "gil-refs")]
-#[allow(deprecated)]
-impl<'v> crate::PyTryFrom<'v> for PyIterator {
-    fn try_from<V: Into<&'v PyAny>>(value: V) -> Result<&'v PyIterator, PyDowncastError<'v>> {
-        let value = value.into();
-        unsafe {
-            if ffi::PyIter_Check(value.as_ptr()) != 0 {
-                Ok(value.downcast_unchecked())
-            } else {
-                Err(PyDowncastError::new(value, "Iterator"))
-            }
-        }
-    }
-
-    fn try_from_exact<V: Into<&'v PyAny>>(value: V) -> Result<&'v PyIterator, PyDowncastError<'v>> {
-        value.into().downcast()
-    }
-
-    #[inline]
-    unsafe fn try_from_unchecked<V: Into<&'v PyAny>>(value: V) -> &'v PyIterator {
-        let ptr = value.into() as *const _ as *const PyIterator;
-        &*ptr
-    }
-}
-
 #[cfg(test)]
 mod tests {
    use super::PyIterator;
@ -295,18 +273,6 @@ def fibonacci(target):
        });
    }

-    #[test]
-    #[cfg(feature = "gil-refs")]
-    #[allow(deprecated)]
-    fn iterator_try_from() {
-        Python::with_gil(|py| {
-            let obj: crate::Py<crate::PyAny> =
-                vec![10, 20].to_object(py).as_ref(py).iter().unwrap().into();
-            let iter = <PyIterator as crate::PyTryFrom>::try_from(obj.as_ref(py)).unwrap();
-            assert!(obj.is(iter));
-        });
-    }
-
    #[test]
    #[cfg(feature = "macros")]
    fn python_class_not_iterator() {
--- a/src/types/list.rs
+++ b/src/types/list.rs
@ -14,6 +14,12 @@ use crate::types::any::PyAnyMethods;
 use crate::types::sequence::PySequenceMethods;

 /// Represents a Python `list`.
+///
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PyList>`][crate::Py] or [`Bound<'py, PyList>`][Bound].
+///
+/// For APIs available on `list` objects, see the [`PyListMethods`] trait which is implemented for
+/// [`Bound<'py, PyDict>`][Bound].
 #[repr(transparent)]
 pub struct PyList(PyAny);

--- a/src/types/mapping.rs
+++ b/src/types/mapping.rs
@ -7,10 +7,16 @@ use crate::type_object::PyTypeInfo;
 use crate::types::any::PyAnyMethods;
 use crate::types::{PyAny, PyDict, PySequence, PyType};
 #[cfg(feature = "gil-refs")]
-use crate::{err::PyDowncastError, PyNativeType};
+use crate::PyNativeType;
 use crate::{ffi, Py, PyTypeCheck, Python, ToPyObject};

 /// Represents a reference to a Python object supporting the mapping protocol.
+///
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PyMapping>`][crate::Py] or [`Bound<'py, PyMapping>`][Bound].
+///
+/// For APIs available on mapping objects, see the [`PyMappingMethods`] trait which is implemented for
+/// [`Bound<'py, PyMapping>`][Bound].
 #[repr(transparent)]
 pub struct PyMapping(PyAny);
 pyobject_native_type_named!(PyMapping);
@ -260,34 +266,6 @@ impl PyTypeCheck for PyMapping {
    }
 }

-#[cfg(feature = "gil-refs")]
-#[allow(deprecated)]
-impl<'v> crate::PyTryFrom<'v> for PyMapping {
-    /// Downcasting to `PyMapping` requires the concrete class to be a subclass (or registered
-    /// subclass) of `collections.abc.Mapping` (from the Python standard library) - i.e.
-    /// `isinstance(<class>, collections.abc.Mapping) == True`.
-    fn try_from<V: Into<&'v PyAny>>(value: V) -> Result<&'v PyMapping, PyDowncastError<'v>> {
-        let value = value.into();
-
-        if PyMapping::type_check(&value.as_borrowed()) {
-            unsafe { return Ok(value.downcast_unchecked()) }
-        }
-
-        Err(PyDowncastError::new(value, "Mapping"))
-    }
-
-    #[inline]
-    fn try_from_exact<V: Into<&'v PyAny>>(value: V) -> Result<&'v PyMapping, PyDowncastError<'v>> {
-        value.into().downcast()
-    }
-
-    #[inline]
-    unsafe fn try_from_unchecked<V: Into<&'v PyAny>>(value: V) -> &'v PyMapping {
-        let ptr = value.into() as *const _ as *const PyMapping;
-        &*ptr
-    }
-}
-
 #[cfg(test)]
 mod tests {
    use std::collections::HashMap;
@ -439,16 +417,4 @@ mod tests {
            assert_eq!(32 + 42 + 123, values_sum);
        });
    }
-
-    #[test]
-    #[cfg(feature = "gil-refs")]
-    #[allow(deprecated)]
-    fn test_mapping_try_from() {
-        use crate::PyTryFrom;
-        Python::with_gil(|py| {
-            let dict = PyDict::new(py);
-            let _ = <PyMapping as PyTryFrom>::try_from(dict).unwrap();
-            let _ = PyMapping::try_from_exact(dict).unwrap();
-        });
-    }
 }
--- a/src/types/memoryview.rs
+++ b/src/types/memoryview.rs
@ -6,6 +6,9 @@ use crate::{ffi, Bound, PyAny};
 use crate::{AsPyPointer, PyNativeType};

 /// Represents a Python `memoryview`.
+///
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PyMemoryView>`][crate::Py] or [`Bound<'py, PyMemoryView>`][Bound].
 #[repr(transparent)]
 pub struct PyMemoryView(PyAny);

--- a/src/types/module.rs
+++ b/src/types/module.rs
@ -15,6 +15,12 @@ use {super::PyStringMethods, crate::PyNativeType};

 /// Represents a Python [`module`][1] object.
 ///
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PyModule>`][crate::Py] or [`Bound<'py, PyModule>`][Bound].
+///
+/// For APIs available on `module` objects, see the [`PyModuleMethods`] trait which is implemented for
+/// [`Bound<'py, PyModule>`][Bound].
+///
 /// As with all other Python objects, modules are first class citizens.
 /// This means they can be passed to or returned from functions,
 /// created dynamically, assigned to variables and so forth.
@ -298,7 +304,7 @@ impl PyModule {
    /// make an *instance* of `Foo` (or *get* one for that matter, as we haven't exported
    /// anything that can return instances of `Foo`).
    ///
-    /// [1]: https://pyo3.rs/latest/class.html#constructor
+    #[doc = concat!("[1]: https://pyo3.rs/v", env!("CARGO_PKG_VERSION"), "/class.html#constructor")]
    pub fn add_class<T>(&self) -> PyResult<()>
    where
        T: PyClass,
@ -503,7 +509,7 @@ pub trait PyModuleMethods<'py>: crate::sealed::Sealed {
    /// make an *instance* of `Foo` (or *get* one for that matter, as we haven't exported
    /// anything that can return instances of `Foo`).
    ///
-    /// [1]: https://pyo3.rs/latest/class.html#constructor
+    #[doc = concat!("[1]: https://pyo3.rs/v", env!("CARGO_PKG_VERSION"), "/class.html#constructor")]
    fn add_class<T>(&self) -> PyResult<()>
    where
        T: PyClass;
--- a/src/types/none.rs
+++ b/src/types/none.rs
@ -5,6 +5,9 @@ use crate::{
 };

 /// Represents the Python `None` object.
+///
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PyNone>`][crate::Py] or [`Bound<'py, PyNone>`][Bound].
 #[repr(transparent)]
 pub struct PyNone(PyAny);

--- a/src/types/notimplemented.rs
+++ b/src/types/notimplemented.rs
@ -4,6 +4,9 @@ use crate::{
 };

 /// Represents the Python `NotImplemented` object.
+///
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PyNotImplemented>`][crate::Py] or [`Bound<'py, PyNotImplemented>`][Bound].
 #[repr(transparent)]
 pub struct PyNotImplemented(PyAny);

--- a/src/types/num.rs
+++ b/src/types/num.rs
@ -2,6 +2,9 @@ use crate::{ffi, PyAny};

 /// Represents a Python `int` object.
 ///
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PyLong>`][crate::Py] or [`Bound<'py, PyLong>`][crate::Bound].
+///
 /// You can usually avoid directly working with this type
 /// by using [`ToPyObject`](crate::conversion::ToPyObject)
 /// and [`extract`](super::PyAnyMethods::extract)
--- a/src/types/pysuper.rs
+++ b/src/types/pysuper.rs
@ -6,7 +6,8 @@ use crate::{PyAny, PyResult};

 /// Represents a Python `super` object.
 ///
-/// This type is immutable.
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PySuper>`][crate::Py] or [`Bound<'py, PySuper>`][Bound].
 #[repr(transparent)]
 pub struct PySuper(PyAny);

--- a/src/types/sequence.rs
+++ b/src/types/sequence.rs
@ -10,10 +10,16 @@ use crate::sync::GILOnceCell;
 use crate::type_object::PyTypeInfo;
 use crate::types::{any::PyAnyMethods, PyAny, PyList, PyString, PyTuple, PyType};
 #[cfg(feature = "gil-refs")]
-use crate::{err::PyDowncastError, PyNativeType};
+use crate::PyNativeType;
 use crate::{ffi, FromPyObject, Py, PyTypeCheck, Python, ToPyObject};

 /// Represents a reference to a Python object supporting the sequence protocol.
+///
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PySequence>`][crate::Py] or [`Bound<'py, PySequence>`][Bound].
+///
+/// For APIs available on sequence objects, see the [`PySequenceMethods`] trait which is implemented for
+/// [`Bound<'py, PySequence>`][Bound].
 #[repr(transparent)]
 pub struct PySequence(PyAny);
 pyobject_native_type_named!(PySequence);
@ -547,33 +553,6 @@ impl PyTypeCheck for PySequence {
    }
 }

-#[cfg(feature = "gil-refs")]
-#[allow(deprecated)]
-impl<'v> crate::PyTryFrom<'v> for PySequence {
-    /// Downcasting to `PySequence` requires the concrete class to be a subclass (or registered
-    /// subclass) of `collections.abc.Sequence` (from the Python standard library) - i.e.
-    /// `isinstance(<class>, collections.abc.Sequence) == True`.
-    fn try_from<V: Into<&'v PyAny>>(value: V) -> Result<&'v PySequence, PyDowncastError<'v>> {
-        let value = value.into();
-
-        if PySequence::type_check(&value.as_borrowed()) {
-            unsafe { return Ok(value.downcast_unchecked::<PySequence>()) }
-        }
-
-        Err(PyDowncastError::new(value, "Sequence"))
-    }
-
-    fn try_from_exact<V: Into<&'v PyAny>>(value: V) -> Result<&'v PySequence, PyDowncastError<'v>> {
-        value.into().downcast()
-    }
-
-    #[inline]
-    unsafe fn try_from_unchecked<V: Into<&'v PyAny>>(value: V) -> &'v PySequence {
-        let ptr = value.into() as *const _ as *const PySequence;
-        &*ptr
-    }
-}
-
 #[cfg(test)]
 mod tests {
    use crate::types::{PyAnyMethods, PyList, PySequence, PySequenceMethods, PyTuple};
@ -1101,16 +1080,4 @@ mod tests {
            assert!(seq_from.to_list().is_ok());
        });
    }
-
-    #[test]
-    #[cfg(feature = "gil-refs")]
-    #[allow(deprecated)]
-    fn test_seq_try_from() {
-        use crate::PyTryFrom;
-        Python::with_gil(|py| {
-            let list = PyList::empty(py);
-            let _ = <PySequence as PyTryFrom>::try_from(list).unwrap();
-            let _ = PySequence::try_from_exact(list).unwrap();
-        });
-    }
 }
--- a/src/types/set.rs
+++ b/src/types/set.rs
@ -11,7 +11,13 @@ use crate::{
 use crate::{ffi, PyAny, PyObject, Python, ToPyObject};
 use std::ptr;

-/// Represents a Python `set`
+/// Represents a Python `set`.
+///
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PySet>`][crate::Py] or [`Bound<'py, PySet>`][Bound].
+///
+/// For APIs available on `set` objects, see the [`PySetMethods`] trait which is implemented for
+/// [`Bound<'py, PySet>`][Bound].
 #[repr(transparent)]
 pub struct PySet(PyAny);

--- a/src/types/slice.rs
+++ b/src/types/slice.rs
@ -8,6 +8,12 @@ use crate::{Bound, PyAny, PyObject, Python, ToPyObject};

 /// Represents a Python `slice`.
 ///
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PySlice>`][crate::Py] or [`Bound<'py, PySlice>`][Bound].
+///
+/// For APIs available on `slice` objects, see the [`PySliceMethods`] trait which is implemented for
+/// [`Bound<'py, PySlice>`][Bound].
+///
 /// Only `isize` indices supported at the moment by the `PySlice` object.
 #[repr(transparent)]
 pub struct PySlice(PyAny);
--- a/src/types/string.rs
+++ b/src/types/string.rs
@ -123,10 +123,11 @@ impl<'a> PyStringData<'a> {

 /// Represents a Python `string` (a Unicode string object).
 ///
-/// This type is only seen inside PyO3's smart pointers as [`Py<PyString>`], [`Bound<'py, PyString>`],
-/// and [`Borrowed<'a, 'py, PyString>`].
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PyString>`][crate::Py] or [`Bound<'py, PyString>`][Bound].
 ///
-/// All functionality on this type is implemented through the [`PyStringMethods`] trait.
+/// For APIs available on `str` objects, see the [`PyStringMethods`] trait which is implemented for
+/// [`Bound<'py, PyString>`][Bound].
 ///
 /// # Equality
 ///
--- a/src/types/traceback.rs
+++ b/src/types/traceback.rs
@ -5,6 +5,12 @@ use crate::PyNativeType;
 use crate::{ffi, Bound, PyAny};

 /// Represents a Python traceback.
+///
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PyTraceback>`][crate::Py] or [`Bound<'py, PyTraceback>`][Bound].
+///
+/// For APIs available on traceback objects, see the [`PyTracebackMethods`] trait which is implemented for
+/// [`Bound<'py, PyTraceback>`][Bound].
 #[repr(transparent)]
 pub struct PyTraceback(PyAny);

--- a/src/types/tuple.rs
+++ b/src/types/tuple.rs
@ -52,7 +52,11 @@ fn new_from_iter<'py>(

 /// Represents a Python `tuple` object.
 ///
-/// This type is immutable.
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PyTuple>`][crate::Py] or [`Bound<'py, PyTuple>`][Bound].
+///
+/// For APIs available on `tuple` objects, see the [`PyTupleMethods`] trait which is implemented for
+/// [`Bound<'py, PyTuple>`][Bound].
 #[repr(transparent)]
 pub struct PyTuple(PyAny);

--- a/src/types/typeobject.rs
+++ b/src/types/typeobject.rs
@ -9,7 +9,14 @@ use crate::PyNativeType;
 use crate::{ffi, Bound, PyAny, PyTypeInfo, Python};

 use super::PyString;
-/// Represents a reference to a Python `type object`.
+
+/// Represents a reference to a Python `type` object.
+///
+/// Values of this type are accessed via PyO3's smart pointers, e.g. as
+/// [`Py<PyType>`][crate::Py] or [`Bound<'py, PyType>`][Bound].
+///
+/// For APIs available on `type` objects, see the [`PyTypeMethods`] trait which is implemented for
+/// [`Bound<'py, PyType>`][Bound].
 #[repr(transparent)]
 pub struct PyType(PyAny);

--- a/tests/test_compile_error.rs
+++ b/tests/test_compile_error.rs
@ -20,7 +20,6 @@ fn test_compile_errors() {
    t.compile_fail("tests/ui/invalid_pymethod_names.rs");
    t.compile_fail("tests/ui/invalid_pymodule_args.rs");
    t.compile_fail("tests/ui/reject_generics.rs");
-    #[cfg(feature = "gil-refs")]
    t.compile_fail("tests/ui/deprecations.rs");
    t.compile_fail("tests/ui/invalid_closure.rs");
    t.compile_fail("tests/ui/pyclass_send.rs");
@ -67,4 +66,5 @@ fn test_compile_errors() {
    t.compile_fail("tests/ui/abi3_weakref.rs");
    #[cfg(all(Py_LIMITED_API, not(Py_3_9)))]
    t.compile_fail("tests/ui/abi3_dict.rs");
+    t.compile_fail("tests/ui/duplicate_pymodule_submodule.rs");
 }
--- a/tests/test_declarative_module.rs
+++ b/tests/test_declarative_module.rs
@ -49,8 +49,7 @@ create_exception!(
    "Some description."
 );

-#[pymodule]
-#[pyo3(submodule)]
+#[pymodule(submodule)]
 mod external_submodule {}

 /// A module written using declarative syntax.
@ -115,7 +114,7 @@ mod declarative_module {
        }
    }

-    #[pymodule(submodule)]
+    #[pymodule]
    #[pyo3(module = "custom_root")]
    mod inner_custom_root {
        use super::*;
@ -144,8 +143,7 @@ mod declarative_submodule {
    use super::{double, double_value};
 }

-#[pymodule]
-#[pyo3(name = "declarative_module_renamed")]
+#[pymodule(name = "declarative_module_renamed")]
 mod declarative_module2 {
    #[pymodule_export]
    use super::double;
--- a/tests/test_module.rs
+++ b/tests/test_module.rs
@ -138,8 +138,7 @@ fn test_module_with_explicit_py_arg() {
    });
 }

-#[pymodule]
-#[pyo3(name = "other_name")]
+#[pymodule(name = "other_name")]
 fn some_name(m: &Bound<'_, PyModule>) -> PyResult<()> {
    m.add("other_name", "other_name")?;
    Ok(())
--- a/tests/ui/deprecations.rs
+++ b/tests/ui/deprecations.rs
@ -2,125 +2,11 @@
 #![allow(dead_code)]

 use pyo3::prelude::*;
-use pyo3::types::{PyString, PyType};
-
-#[pyclass]
-struct MyClass;
-
-#[pymethods]
-impl MyClass {
-    #[__new__]
-    fn new() -> Self {
-        Self
-    }
-
-    #[classmethod]
-    fn cls_method_gil_ref(_cls: &PyType) {}
-
-    #[classmethod]
-    fn cls_method_bound(_cls: &Bound<'_, PyType>) {}
-
-    fn method_gil_ref(_slf: &PyCell<Self>) {}
-
-    fn method_bound(_slf: &Bound<'_, Self>) {}
-
-    #[staticmethod]
-    fn static_method_gil_ref(_any: &PyAny) {}
-
-    #[setter]
-    fn set_foo_gil_ref(&self, #[pyo3(from_py_with = "extract_gil_ref")] _value: i32) {}
-
-    #[setter]
-    fn set_foo_bound(&self, #[pyo3(from_py_with = "extract_bound")] _value: i32) {}
-
-    #[setter]
-    fn set_bar_gil_ref(&self, _value: &PyAny) {}
-
-    #[setter]
-    fn set_bar_bound(&self, _value: &Bound<'_, PyAny>) {}
-
-    fn __eq__(&self, #[pyo3(from_py_with = "extract_gil_ref")] _other: i32) -> bool {
-        true
-    }
-
-    fn __contains__(&self, #[pyo3(from_py_with = "extract_bound")] _value: i32) -> bool {
-        true
-    }
-}
-
-fn main() {}
-
-#[pyfunction]
-#[pyo3(pass_module)]
-fn pyfunction_with_module<'py>(module: &Bound<'py, PyModule>) -> PyResult<Bound<'py, PyString>> {
-    module.name()
-}
-
-#[pyfunction]
-#[pyo3(pass_module)]
-fn pyfunction_with_module_gil_ref(_module: &PyModule) -> PyResult<&str> {
-    todo!()
-}
-
-#[pyfunction]
-fn double(x: usize) -> usize {
-    x * 2
-}
-
-#[pymodule]
-fn module_gil_ref(_m: &PyModule) -> PyResult<()> {
-    Ok(())
-}
-
-#[pymodule]
-fn module_gil_ref_with_explicit_py_arg(_py: Python<'_>, _m: &PyModule) -> PyResult<()> {
-    Ok(())
-}
-
-#[pymodule]
-fn module_bound(m: &Bound<'_, PyModule>) -> PyResult<()> {
-    m.add_function(wrap_pyfunction!(double, m)?)?;
-    Ok(())
-}
-
-#[pymodule]
-fn module_bound_with_explicit_py_arg(_py: Python<'_>, m: &Bound<'_, PyModule>) -> PyResult<()> {
-    m.add_function(wrap_pyfunction!(double, m)?)?;
-    Ok(())
-}
-
-#[pymodule]
-fn module_bound_by_value(m: Bound<'_, PyModule>) -> PyResult<()> {
-    m.add_function(wrap_pyfunction!(double, &m)?)?;
-    Ok(())
-}
-
-fn extract_gil_ref(obj: &PyAny) -> PyResult<i32> {
-    obj.extract()
-}
-
-fn extract_bound(obj: &Bound<'_, PyAny>) -> PyResult<i32> {
-    obj.extract()
-}

 fn extract_options(obj: &Bound<'_, PyAny>) -> PyResult<Option<i32>> {
    obj.extract()
 }

-#[pyfunction]
-fn pyfunction_from_py_with(
-    #[pyo3(from_py_with = "extract_gil_ref")] _gil_ref: i32,
-    #[pyo3(from_py_with = "extract_bound")] _bound: i32,
-) {
-}
-
-#[pyfunction]
-fn pyfunction_gil_ref(_any: &PyAny) {}
-
-#[pyfunction]
-#[pyo3(signature = (_any))]
-fn pyfunction_option_gil_ref(_any: Option<&PyAny>) {}
-
 #[pyfunction]
 #[pyo3(signature = (_i, _any=None))]
 fn pyfunction_option_1(_i: u32, _any: Option<i32>) {}
@ -139,63 +25,10 @@ fn pyfunction_option_4(
 ) {
 }

-#[derive(Debug, FromPyObject)]
-pub struct Zap {
-    #[pyo3(item)]
-    name: String,
-
-    #[pyo3(from_py_with = "PyAny::len", item("my_object"))]
-    some_object_length: usize,
-
-    #[pyo3(from_py_with = "extract_bound")]
-    some_number: i32,
-}
-
-#[derive(Debug, FromPyObject)]
-pub struct ZapTuple(
-    String,
-    #[pyo3(from_py_with = "PyAny::len")] usize,
-    #[pyo3(from_py_with = "extract_bound")] i32,
-);
-
-#[derive(Debug, FromPyObject, PartialEq, Eq)]
-pub enum ZapEnum {
-    Zip(#[pyo3(from_py_with = "extract_gil_ref")] i32),
-    Zap(String, #[pyo3(from_py_with = "extract_bound")] i32),
-}
-
-#[derive(Debug, FromPyObject, PartialEq, Eq)]
-#[pyo3(transparent)]
-pub struct TransparentFromPyWithGilRef {
-    #[pyo3(from_py_with = "extract_gil_ref")]
-    len: i32,
-}
-
-#[derive(Debug, FromPyObject, PartialEq, Eq)]
-#[pyo3(transparent)]
-pub struct TransparentFromPyWithBound {
-    #[pyo3(from_py_with = "extract_bound")]
-    len: i32,
-}
-
-fn test_wrap_pyfunction(py: Python<'_>, m: &Bound<'_, PyModule>) {
-    // should lint
-    let _ = wrap_pyfunction!(double, py);
-
-    // should lint but currently does not
-    let _ = wrap_pyfunction!(double)(py);
-
-    // should not lint
-    let _ = wrap_pyfunction!(double, m);
-    let _ = wrap_pyfunction!(double)(m);
-    let _ = wrap_pyfunction!(double, m.as_gil_ref());
-    let _ = wrap_pyfunction!(double)(m.as_gil_ref());
-    let _ = wrap_pyfunction_bound!(double, py);
-    let _ = wrap_pyfunction_bound!(double)(py);
-}
-
 #[pyclass]
 pub enum SimpleEnumWithoutEq {
    VariamtA,
    VariantB,
 }
+
+fn main() {}
--- a/tests/ui/deprecations.stderr
+++ b/tests/ui/deprecations.stderr
@ -1,8 +1,10 @@
-error: use of deprecated constant `pyo3::deprecations::PYMETHODS_NEW_DEPRECATED_FORM`: use `#[new]` instead of `#[__new__]`
-  --> tests/ui/deprecations.rs:12:7
+error: use of deprecated constant `__pyfunction_pyfunction_option_2::SIGNATURE`: this function has implicit defaults for the trailing `Option<T>` arguments
+       = note: these implicit defaults are being phased out
+       = help: add `#[pyo3(signature = (_i, _any=None))]` to this function to silence this warning and keep the current behavior
+  --> tests/ui/deprecations.rs:15:4
   |
-12 |     #[__new__]
-   |       ^^^^^^^
+15 | fn pyfunction_option_2(_i: u32, _any: Option<i32>) {}
+   |    ^^^^^^^^^^^^^^^^^^^
   |
 note: the lint level is defined here
  --> tests/ui/deprecations.rs:1:9
@ -10,144 +12,26 @@ note: the lint level is defined here
 1  | #![deny(deprecated)]
   |         ^^^^^^^^^^

-error: use of deprecated constant `__pyfunction_pyfunction_option_2::SIGNATURE`: this function has implicit defaults for the trailing `Option<T>` arguments
-       = note: these implicit defaults are being phased out
-       = help: add `#[pyo3(signature = (_i, _any=None))]` to this function to silence this warning and keep the current behavior
-   --> tests/ui/deprecations.rs:129:4
-    |
-129 | fn pyfunction_option_2(_i: u32, _any: Option<i32>) {}
-    |    ^^^^^^^^^^^^^^^^^^^
-
 error: use of deprecated constant `__pyfunction_pyfunction_option_3::SIGNATURE`: this function has implicit defaults for the trailing `Option<T>` arguments
       = note: these implicit defaults are being phased out
       = help: add `#[pyo3(signature = (_i, _any=None, _foo=None))]` to this function to silence this warning and keep the current behavior
-   --> tests/ui/deprecations.rs:132:4
-    |
-132 | fn pyfunction_option_3(_i: u32, _any: Option<i32>, _foo: Option<String>) {}
-    |    ^^^^^^^^^^^^^^^^^^^
+  --> tests/ui/deprecations.rs:18:4
+   |
+18 | fn pyfunction_option_3(_i: u32, _any: Option<i32>, _foo: Option<String>) {}
+   |    ^^^^^^^^^^^^^^^^^^^

 error: use of deprecated constant `__pyfunction_pyfunction_option_4::SIGNATURE`: this function has implicit defaults for the trailing `Option<T>` arguments
       = note: these implicit defaults are being phased out
       = help: add `#[pyo3(signature = (_i, _any=None, _foo=None))]` to this function to silence this warning and keep the current behavior
-   --> tests/ui/deprecations.rs:135:4
-    |
-135 | fn pyfunction_option_4(
-    |    ^^^^^^^^^^^^^^^^^^^
+  --> tests/ui/deprecations.rs:21:4
+   |
+21 | fn pyfunction_option_4(
+   |    ^^^^^^^^^^^^^^^^^^^

 error: use of deprecated constant `SimpleEnumWithoutEq::__pyo3__generated____richcmp__::DEPRECATION`: Implicit equality for simple enums is deprecated. Use `#[pyclass(eq, eq_int)` to keep the current behavior.
-   --> tests/ui/deprecations.rs:197:1
-    |
-197 | #[pyclass]
-    | ^^^^^^^^^^
-    |
-    = note: this error originates in the attribute macro `pyclass` (in Nightly builds, run with -Z macro-backtrace for more info)
-
-error: use of deprecated struct `pyo3::PyCell`: `PyCell` was merged into `Bound`, use that instead; see the migration guide for more info
-  --> tests/ui/deprecations.rs:23:30
+  --> tests/ui/deprecations.rs:28:1
   |
-23 |     fn method_gil_ref(_slf: &PyCell<Self>) {}
-   |                              ^^^^^^
-
-error: use of deprecated method `pyo3::deprecations::GilRefs::<T>::from_py_with_arg`: use `&Bound<'_, PyAny>` as the argument for this `from_py_with` extractor
-  --> tests/ui/deprecations.rs:42:44
+28 | #[pyclass]
+   | ^^^^^^^^^^
   |
-42 |     fn __eq__(&self, #[pyo3(from_py_with = "extract_gil_ref")] _other: i32) -> bool {
-   |                                            ^^^^^^^^^^^^^^^^^
-
-error: use of deprecated method `pyo3::deprecations::GilRefs::<T>::function_arg`: use `&Bound<'_, T>` instead for this function argument
-  --> tests/ui/deprecations.rs:18:33
-   |
-18 |     fn cls_method_gil_ref(_cls: &PyType) {}
-   |                                 ^
-
-error: use of deprecated method `pyo3::deprecations::GilRefs::<T>::function_arg`: use `&Bound<'_, T>` instead for this function argument
-  --> tests/ui/deprecations.rs:23:29
-   |
-23 |     fn method_gil_ref(_slf: &PyCell<Self>) {}
-   |                             ^
-
-error: use of deprecated method `pyo3::deprecations::GilRefs::<T>::function_arg`: use `&Bound<'_, T>` instead for this function argument
-  --> tests/ui/deprecations.rs:28:36
-   |
-28 |     fn static_method_gil_ref(_any: &PyAny) {}
-   |                                    ^
-
-error: use of deprecated method `pyo3::deprecations::GilRefs::<T>::from_py_with_arg`: use `&Bound<'_, PyAny>` as the argument for this `from_py_with` extractor
-  --> tests/ui/deprecations.rs:31:53
-   |
-31 |     fn set_foo_gil_ref(&self, #[pyo3(from_py_with = "extract_gil_ref")] _value: i32) {}
-   |                                                     ^^^^^^^^^^^^^^^^^
-
-error: use of deprecated method `pyo3::deprecations::GilRefs::<T>::function_arg`: use `&Bound<'_, T>` instead for this function argument
-  --> tests/ui/deprecations.rs:37:39
-   |
-37 |     fn set_bar_gil_ref(&self, _value: &PyAny) {}
-   |                                       ^
-
-error: use of deprecated method `pyo3::deprecations::GilRefs::<T>::function_arg`: use `&Bound<'_, T>` instead for this function argument
-  --> tests/ui/deprecations.rs:61:44
-   |
-61 | fn pyfunction_with_module_gil_ref(_module: &PyModule) -> PyResult<&str> {
-   |                                            ^
-
-error: use of deprecated method `pyo3::deprecations::GilRefs::<T>::function_arg`: use `&Bound<'_, T>` instead for this function argument
-  --> tests/ui/deprecations.rs:71:19
-   |
-71 | fn module_gil_ref(_m: &PyModule) -> PyResult<()> {
-   |                   ^^
-
-error: use of deprecated method `pyo3::deprecations::GilRefs::<T>::function_arg`: use `&Bound<'_, T>` instead for this function argument
-  --> tests/ui/deprecations.rs:76:57
-   |
-76 | fn module_gil_ref_with_explicit_py_arg(_py: Python<'_>, _m: &PyModule) -> PyResult<()> {
-   |                                                         ^^
-
-error: use of deprecated method `pyo3::deprecations::GilRefs::<T>::from_py_with_arg`: use `&Bound<'_, PyAny>` as the argument for this `from_py_with` extractor
-   --> tests/ui/deprecations.rs:112:27
-    |
-112 |     #[pyo3(from_py_with = "extract_gil_ref")] _gil_ref: i32,
-    |                           ^^^^^^^^^^^^^^^^^
-
-error: use of deprecated method `pyo3::deprecations::GilRefs::<T>::function_arg`: use `&Bound<'_, T>` instead for this function argument
-   --> tests/ui/deprecations.rs:118:29
-    |
-118 | fn pyfunction_gil_ref(_any: &PyAny) {}
-    |                             ^
-
-error: use of deprecated method `pyo3::deprecations::OptionGilRefs::<std::option::Option<T>>::function_arg`: use `Option<&Bound<'_, T>>` instead for this function argument
-   --> tests/ui/deprecations.rs:122:36
-    |
-122 | fn pyfunction_option_gil_ref(_any: Option<&PyAny>) {}
-    |                                    ^^^^^^
-
-error: use of deprecated method `pyo3::deprecations::GilRefs::<T>::from_py_with_arg`: use `&Bound<'_, PyAny>` as the argument for this `from_py_with` extractor
-   --> tests/ui/deprecations.rs:147:27
-    |
-147 |     #[pyo3(from_py_with = "PyAny::len", item("my_object"))]
-    |                           ^^^^^^^^^^^^
-
-error: use of deprecated method `pyo3::deprecations::GilRefs::<T>::from_py_with_arg`: use `&Bound<'_, PyAny>` as the argument for this `from_py_with` extractor
-   --> tests/ui/deprecations.rs:157:27
-    |
-157 |     #[pyo3(from_py_with = "PyAny::len")] usize,
-    |                           ^^^^^^^^^^^^
-
-error: use of deprecated method `pyo3::deprecations::GilRefs::<T>::from_py_with_arg`: use `&Bound<'_, PyAny>` as the argument for this `from_py_with` extractor
-   --> tests/ui/deprecations.rs:163:31
-    |
-163 |     Zip(#[pyo3(from_py_with = "extract_gil_ref")] i32),
-    |                               ^^^^^^^^^^^^^^^^^
-
-error: use of deprecated method `pyo3::deprecations::GilRefs::<T>::from_py_with_arg`: use `&Bound<'_, PyAny>` as the argument for this `from_py_with` extractor
-   --> tests/ui/deprecations.rs:170:27
-    |
-170 |     #[pyo3(from_py_with = "extract_gil_ref")]
-    |                           ^^^^^^^^^^^^^^^^^
-
-error: use of deprecated method `pyo3::deprecations::GilRefs::<pyo3::Python<'_>>::is_python`: use `wrap_pyfunction_bound!` instead
-   --> tests/ui/deprecations.rs:183:13
-    |
-183 |     let _ = wrap_pyfunction!(double, py);
-    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-    |
-    = note: this error originates in the macro `wrap_pyfunction` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the attribute macro `pyclass` (in Nightly builds, run with -Z macro-backtrace for more info)
--- a/tests/ui/duplicate_pymodule_submodule.rs
+++ b/tests/ui/duplicate_pymodule_submodule.rs
@ -0,0 +1,7 @@
+#[pyo3::pymodule]
+mod mymodule {
+	#[pyo3::pymodule(submodule)]
+	mod submod {}
+}
+
+fn main() {}
--- a/tests/ui/duplicate_pymodule_submodule.stderr
+++ b/tests/ui/duplicate_pymodule_submodule.stderr
@ -0,0 +1,17 @@
+error: `submodule` may only be specified once (it is implicitly always specified for nested modules)
+ --> tests/ui/duplicate_pymodule_submodule.rs:4:2
+  |
+4 |     mod submod {}
+  |     ^^^
+
+error[E0425]: cannot find value `_PYO3_DEF` in module `submod`
+ --> tests/ui/duplicate_pymodule_submodule.rs:1:1
+  |
+1 | #[pyo3::pymodule]
+  | ^^^^^^^^^^^^^^^^^ not found in `submod`
+  |
+  = note: this error originates in the attribute macro `pyo3::pymodule` (in Nightly builds, run with -Z macro-backtrace for more info)
+help: consider importing this static
+  |
+3 +     use crate::mymodule::_PYO3_DEF;
+  |
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
David Hewitt	a5a3f3f7f2	allow `#[pymodule(...)]` to accept all relevant `#[pyo3(...)]` options (#4330 )	2024-07-10 22:38:38 +00:00
Larry Z	6be80647cb	Prevent building in GIL-less environment (#4327 ) * Prevent building in GIL-less environment * Add change log * add "yet" to phrasing * Add testing to build script * add link to issue * Fix formatting issues --------- Co-authored-by: David Hewitt <mail@davidhewitt.dev>	2024-07-10 18:39:39 +00:00
David Hewitt	90c4799951	docs: fixups to 0.22 migration guide (#4332 )	2024-07-10 14:18:13 +00:00
David Hewitt	3c65132da5	remove all functionality deprecated in PyO3 0.21 (#4323 ) * remove all functionality deprecated in PyO3 0.21 * further adjustments after removing deprecated APIs	2024-07-10 13:38:30 +00:00
David Hewitt	32b6a1aef1	docs: use versioned links from docs to guide (#4331 ) * use versioned links from docs to guide * use standard python version in `guide-build` ci job	2024-07-10 12:30:01 +00:00
David Hewitt	c7c1dff710	ci: check minimal-versions on MSRV feature powerset (#4273 ) * ci: check minimal-versions on MSRV feature powerset * fix msrv arg * bump num-bigint floor to 0.4.2 * try fix build syntax	2024-07-10 11:36:31 +00:00
Giovanni Barillari	1279232701	Add Granian to example projects (#4329 )	2024-07-10 09:16:23 +00:00
David Hewitt	97d60e869b	clean up hygiene tests (#4328 )	2024-07-09 21:28:15 +00:00
David Hewitt	8652ac8e1c	remove all functionality deprecated in 0.20 (#4322 ) * remove all functionality deprecated in 0.20 * bump version to 0.23.0-dev * undo unintended revert * fixup UI test	2024-07-09 16:44:27 +00:00
Alex Gaynor	e73112f3f6	Automatically treat nested modules as submodules (#4308 ) fixes #4286	2024-07-09 12:15:12 +00:00
David Hewitt	186c7d3315	docs: improve signposting to bound and traits (#4325 ) * docs: improve signposting to bound and traits * update UI tests	2024-07-09 11:53:11 +00:00
Sede Soukossi	1861d6d379	docs: Fix mismatch return value, remove redundant error propagation, and additional fixes (#4318 ) * Fix mismatch return value, remove redundant error propagation, and fix typo * Update guide/src/function/signature.md Co-authored-by: Lily Foote <code@lilyf.org> --------- Co-authored-by: Lily Foote <code@lilyf.org>	2024-07-08 20:30:44 +00:00
Icxolu	3c155d9fef	remove the gil-ref deprecations infrastructure (#4320 )	2024-07-08 13:40:27 +00:00
David Hewitt	d5c886f4c0	simplify implementation of `Py::clone_ref` (#4313 )	2024-07-07 06:53:43 +00:00
				`@ -0,0 +1 @@`
				Nested declarative `#[pymodule]` are automatically treated as submodules (no `PyInit_` entrypoint is created)
				`@ -0,0 +1 @@`
				Deprecate `PyAnyMethods::is_ellipsis` (`Py::is_ellpsis` was deprecated in PyO3 0.20).
				`@ -0,0 +1 @@`
				`Remove all functionality deprecated in PyO3 0.20.`
				`@ -0,0 +1 @@`
				Fix compile failure in declarative `#[pymodule]` under presence of `#![no_implicit_prelude]`.
				`@ -0,0 +1 @@`
				`#[pymodule(...)]` now directly accepts all relevant `#[pyo3(...)]` options.