diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7a1dec27..dc3ddc40 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,7 +1,12 @@
 # Changelog
 
-## Unreleased
+## 0.3.0 (unreleased)
 
+* Upgraded to syn 0.14 which means much better error messages :tada:
+* 128 bit integer support by [kngwyu](https://github.com/kngwyu) ([#137](https://github.com/PyO3/pyo3/pull/173))
+* Added `py` prefixes to the proc macros and moved them into the root module. You should just use the plain proc macros, i.e. `#[pyclass]`, `#[pymethods]`, `#[pyproto]`, `#[pyfunction]` and `#[pymodinit]`. This is important because `proc_macro_path_invoc` isn't going to be stabilized soon. 
+* The guide is now properly versioned.
+* A few internal macros became part of the public api ([#155](https://github.com/PyO3/pyo3/pull/155), [#186](https://github.com/PyO3/pyo3/pull/186))
 * Always clone in getters. This allows using the get-annotation on all Clone-Types
 
 ## 0.2.7 (2018-05-18)
diff --git a/Cargo.toml b/Cargo.toml
index 8faa7df2..af858422 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pyo3"
-version = "0.2.5"
+version = "0.3.0"
 description = "Bindings to Python interpreter"
 authors = ["PyO3 Project and Contributors <https://github.com/PyO3>"]
 readme = "README.md"
@@ -23,7 +23,7 @@ log = "0.4"
 libc = "0.2"
 spin = "0.4.6"
 num-traits = "0.2"
-pyo3cls = { path = "pyo3cls", version = "0.2.5" }
+pyo3cls = { path = "pyo3cls", version = "0.3.0" }
 
 [dev-dependencies]
 docmatic = "^0.1.2"
@@ -51,4 +51,4 @@ members = [
     "pyo3cls",
     "pyo3-derive-backend",
     "examples/*",
-]
\ No newline at end of file
+]
diff --git a/pyo3cls/Cargo.toml b/pyo3cls/Cargo.toml
index c522dd00..ed0491e4 100644
--- a/pyo3cls/Cargo.toml
+++ b/pyo3cls/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pyo3cls"
-version = "0.2.5"
+version = "0.3.0"
 description = "Proc macros for PyO3 package"
 authors = ["PyO3 Project and Contributors <https://github.com/PyO3>"]
 keywords = ["pyo3", "python", "cpython", "ffi"]
@@ -22,7 +22,7 @@ features=["full", "parsing", "printing", "extra-traits"]
 
 [dependencies.pyo3-derive-backend]
 path = "../pyo3-derive-backend"
-version = "0.2.5"
+version = "0.3.0"
 
 [dependencies.proc-macro2]
 version = "0.4"