diff --git a/CHANGELOG.md b/CHANGELOG.md
index d565a662..2a320cde 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,20 +8,23 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased
 
+## [0.16.4] - 2022-04-14
+
 ### Added
 
+- Add `PyTzInfoAccess` trait for safe access to time zone information. [#2263](https://github.com/PyO3/pyo3/pull/2263)
 - Add an experimental `generate-abi3-import-lib` feature to auto-generate `python3.dll` import libraries for Windows. [#2282](https://github.com/PyO3/pyo3/pull/2282)
 - Add FFI definitions for `PyDateTime_BaseTime` and `PyDateTime_BaseDateTime`. [#2294](https://github.com/PyO3/pyo3/pull/2294)
-- Added `PyTzInfoAccess` for safe access to time zone information. [#2263](https://github.com/PyO3/pyo3/pull/2263)
 
 ### Changed
 
-- Allow to compile "abi3" extensions without a working build host Python interpreter. [#2293](https://github.com/PyO3/pyo3/pull/2293)
-- Default to "m" ABI tag when choosing `libpython` link name for CPython 3.7 on Unix. [#2288](https://github.com/PyO3/pyo3/pull/2288)
 - Improved performance of failing calls to `FromPyObject::extract` which is common when functions accept multiple distinct types. [#2279](https://github.com/PyO3/pyo3/pull/2279)
+- Default to "m" ABI tag when choosing `libpython` link name for CPython 3.7 on Unix. [#2288](https://github.com/PyO3/pyo3/pull/2288)
+- Allow to compile "abi3" extensions without a working build host Python interpreter. [#2293](https://github.com/PyO3/pyo3/pull/2293)
 
 ### Fixed
 
+- Crates depending on PyO3 can collect code coverage via LLVM instrumentation using stable Rust. [#2286](https://github.com/PyO3/pyo3/pull/2286)
 - Fix segfault when calling FFI methods `PyDateTime_DATE_GET_TZINFO` or `PyDateTime_TIME_GET_TZINFO` on `datetime` or `time` without a tzinfo. [#2289](https://github.com/PyO3/pyo3/pull/2289)
 - Fix directory names starting with the letter `n` breaking serialization of the interpreter configuration on Windows since PyO3 0.16.3. [#2299](https://github.com/PyO3/pyo3/pull/2299)
 
@@ -1148,7 +1151,8 @@ Yanked
 
 - Initial release
 
-[Unreleased]: https://github.com/pyo3/pyo3/compare/v0.16.3...HEAD
+[Unreleased]: https://github.com/pyo3/pyo3/compare/v0.16.4...HEAD
+[0.16.3]: https://github.com/pyo3/pyo3/compare/v0.16.3...v0.16.4
 [0.16.3]: https://github.com/pyo3/pyo3/compare/v0.16.2...v0.16.3
 [0.16.2]: https://github.com/pyo3/pyo3/compare/v0.16.1...v0.16.2
 [0.16.1]: https://github.com/pyo3/pyo3/compare/v0.16.0...v0.16.1
diff --git a/Cargo.toml b/Cargo.toml
index 833ac0ac..23df80c0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pyo3"
-version = "0.16.3"
+version = "0.16.4"
 description = "Bindings to Python interpreter"
 authors = ["PyO3 Project and Contributors <https://github.com/PyO3>"]
 readme = "README.md"
@@ -19,10 +19,10 @@ libc = "0.2.62"
 parking_lot = ">= 0.11, < 0.13"
 
 # ffi bindings to the python interpreter, split into a seperate crate so they can be used independently
-pyo3-ffi = { path = "pyo3-ffi", version = "=0.16.3" }
+pyo3-ffi = { path = "pyo3-ffi", version = "=0.16.4" }
 
 # support crates for macros feature
-pyo3-macros = { path = "pyo3-macros", version = "=0.16.3", optional = true }
+pyo3-macros = { path = "pyo3-macros", version = "=0.16.4", optional = true }
 indoc = { version = "1.0.3", optional = true }
 unindent = { version = "0.1.4", optional = true }
 
@@ -50,7 +50,7 @@ serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0.61"
 
 [build-dependencies]
-pyo3-build-config = { path = "pyo3-build-config", version = "0.16.3", features = ["resolve-config"] }
+pyo3-build-config = { path = "pyo3-build-config", version = "0.16.4", features = ["resolve-config"] }
 
 [features]
 default = ["macros", "pyproto"]
diff --git a/README.md b/README.md
index f7e55dc1..01637bbc 100644
--- a/README.md
+++ b/README.md
@@ -68,7 +68,7 @@ name = "string_sum"
 crate-type = ["cdylib"]
 
 [dependencies]
-pyo3 = { version = "0.16.3", features = ["extension-module"] }
+pyo3 = { version = "0.16.4", features = ["extension-module"] }
 ```
 
 **`src/lib.rs`**
@@ -132,7 +132,7 @@ Start a new project with `cargo new` and add  `pyo3` to the `Cargo.toml` like th
 
 ```toml
 [dependencies.pyo3]
-version = "0.16.3"
+version = "0.16.4"
 features = ["auto-initialize"]
 ```
 
diff --git a/examples/Cargo.toml b/examples/Cargo.toml
index 816dcce7..a46e14f5 100644
--- a/examples/Cargo.toml
+++ b/examples/Cargo.toml
@@ -5,7 +5,7 @@ publish = false
 edition = "2018"
 
 [dev-dependencies]
-pyo3 = { version = "0.16.3", path = "..", features = ["auto-initialize", "extension-module"] }
+pyo3 = { version = "0.16.4", path = "..", features = ["auto-initialize", "extension-module"] }
 
 [[example]]
 name = "decorator"
diff --git a/examples/decorator/.template/pre-script.rhai b/examples/decorator/.template/pre-script.rhai
index caad7593..7ba10b00 100644
--- a/examples/decorator/.template/pre-script.rhai
+++ b/examples/decorator/.template/pre-script.rhai
@@ -1,4 +1,4 @@
-variable::set("PYO3_VERSION", "0.16.3");
+variable::set("PYO3_VERSION", "0.16.4");
 file::rename(".template/Cargo.toml", "Cargo.toml");
 file::rename(".template/pyproject.toml", "pyproject.toml");
 file::rename(".template/tox.ini", "tox.ini");
diff --git a/examples/maturin-starter/.template/pre-script.rhai b/examples/maturin-starter/.template/pre-script.rhai
index caad7593..7ba10b00 100644
--- a/examples/maturin-starter/.template/pre-script.rhai
+++ b/examples/maturin-starter/.template/pre-script.rhai
@@ -1,4 +1,4 @@
-variable::set("PYO3_VERSION", "0.16.3");
+variable::set("PYO3_VERSION", "0.16.4");
 file::rename(".template/Cargo.toml", "Cargo.toml");
 file::rename(".template/pyproject.toml", "pyproject.toml");
 file::rename(".template/tox.ini", "tox.ini");
diff --git a/examples/setuptools-rust-starter/.template/pre-script.rhai b/examples/setuptools-rust-starter/.template/pre-script.rhai
index a44b6a73..0dd10361 100644
--- 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", "0.16.3");
+variable::set("PYO3_VERSION", "0.16.4");
 file::rename(".template/Cargo.toml", "Cargo.toml");
 file::rename(".template/setup.cfg", "setup.cfg");
 file::rename(".template/tox.ini", "tox.ini");
diff --git a/examples/word-count/.template/pre-script.rhai b/examples/word-count/.template/pre-script.rhai
index fd959ba2..778da32d 100644
--- a/examples/word-count/.template/pre-script.rhai
+++ b/examples/word-count/.template/pre-script.rhai
@@ -1,4 +1,4 @@
-variable::set("PYO3_VERSION", "0.16.3");
+variable::set("PYO3_VERSION", "0.16.4");
 file::rename(".template/Cargo.toml", "Cargo.toml");
 file::rename(".template/tox.ini", "tox.ini");
 file::delete(".template");
diff --git a/pyo3-build-config/Cargo.toml b/pyo3-build-config/Cargo.toml
index 7449b1f9..fb687b0f 100644
--- a/pyo3-build-config/Cargo.toml
+++ b/pyo3-build-config/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pyo3-build-config"
-version = "0.16.3"
+version = "0.16.4"
 description = "Build configuration for the PyO3 ecosystem"
 authors = ["PyO3 Project and Contributors <https://github.com/PyO3>"]
 keywords = ["pyo3", "python", "cpython", "ffi"]
diff --git a/pyo3-ffi/Cargo.toml b/pyo3-ffi/Cargo.toml
index e632fa91..0e6703dd 100644
--- a/pyo3-ffi/Cargo.toml
+++ b/pyo3-ffi/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pyo3-ffi"
-version = "0.16.3"
+version = "0.16.4"
 description = "Python-API bindings for the PyO3 ecosystem"
 authors = ["PyO3 Project and Contributors <https://github.com/PyO3>"]
 keywords = ["pyo3", "python", "cpython", "ffi"]
@@ -35,4 +35,4 @@ abi3-py310 = ["abi3", "pyo3-build-config/abi3-py310"]
 
 
 [build-dependencies]
-pyo3-build-config = { path = "../pyo3-build-config", version = "0.16.3", features = ["resolve-config"] }
+pyo3-build-config = { path = "../pyo3-build-config", version = "0.16.4", features = ["resolve-config"] }
diff --git a/pyo3-macros-backend/Cargo.toml b/pyo3-macros-backend/Cargo.toml
index feef146c..b8e543cd 100644
--- a/pyo3-macros-backend/Cargo.toml
+++ b/pyo3-macros-backend/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pyo3-macros-backend"
-version = "0.16.3"
+version = "0.16.4"
 description = "Code generation for PyO3 package"
 authors = ["PyO3 Project and Contributors <https://github.com/PyO3>"]
 keywords = ["pyo3", "python", "cpython", "ffi"]
diff --git a/pyo3-macros/Cargo.toml b/pyo3-macros/Cargo.toml
index 26c4e7a5..7758fb3b 100644
--- a/pyo3-macros/Cargo.toml
+++ b/pyo3-macros/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pyo3-macros"
-version = "0.16.3"
+version = "0.16.4"
 description = "Proc macros for PyO3 package"
 authors = ["PyO3 Project and Contributors <https://github.com/PyO3>"]
 keywords = ["pyo3", "python", "cpython", "ffi"]
@@ -23,4 +23,4 @@ abi3 = ["pyo3-macros-backend/abi3"]
 proc-macro2 = { version = "1", default-features = false }
 quote = "1"
 syn = { version = "1.0.56", features = ["full", "extra-traits"] }
-pyo3-macros-backend = { path = "../pyo3-macros-backend", version = "=0.16.3" }
+pyo3-macros-backend = { path = "../pyo3-macros-backend", version = "=0.16.4" }