release: 0.28.3 (#5935)

davidhewitt · web-flow · commit 82bc4a4fcf56 · 2026-04-02T10:44:49.000Z
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -10,6 +10,16 @@ To see unreleased changes, please see the [CHANGELOG on the main branch guide](h
 
 <!-- towncrier release notes start -->
 
+## [0.28.3] - 2026-04-02
+
+### Fixed
+
+- Fix compile error with `#[pyclass(get_all)]` on a type named `Probe`. [#5837](https://github.com/PyO3/pyo3/pull/5837)
+- Fix compile error in debug builds related to `_Py_NegativeRefcount` with Python < 3.12. [#5847](https://github.com/PyO3/pyo3/pull/5847)
+- Fix a race condition where `Python::attach` or `try_attach` could return before `site.py` had finished running. [#5903](https://github.com/PyO3/pyo3/pull/5903)
+- Fix unsoundness in `PyBytesWriter::write_vectored` with Python 3.15 prerelease versions. [#5907](https://github.com/PyO3/pyo3/pull/5907)
+- Fix deadlock in `.into_pyobject()` implementation for C-like `#[pyclass]` enums. [#5928](https://github.com/PyO3/pyo3/pull/5928)
+
 ## [0.28.2] - 2026-02-18
 
 ### Fixed
@@ -2507,7 +2517,8 @@ Yanked
 
 - Initial release
 
-[Unreleased]: https://github.com/pyo3/pyo3/compare/v0.28.2...HEAD
+[Unreleased]: https://github.com/pyo3/pyo3/compare/v0.28.3...HEAD
+[0.28.3]: https://github.com/pyo3/pyo3/compare/v0.28.2...v0.28.3
 [0.28.2]: https://github.com/pyo3/pyo3/compare/v0.28.1...v0.28.2
 [0.28.1]: https://github.com/pyo3/pyo3/compare/v0.28.0...v0.28.1
 [0.28.0]: https://github.com/pyo3/pyo3/compare/v0.27.2...v0.28.0
diff --git a/Cargo.toml b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pyo3"
-version = "0.28.2"
+version = "0.28.3"
 description = "Bindings to Python interpreter"
 authors = ["PyO3 Project and Contributors <https://github.com/PyO3>"]
 readme = "README.md"
@@ -29,10 +29,10 @@ libc = "0.2.62"
 once_cell = "1.21"
 
 # ffi bindings to the python interpreter, split into a separate crate so they can be used independently
-pyo3-ffi = { path = "pyo3-ffi", version = "=0.28.2" }
+pyo3-ffi = { path = "pyo3-ffi", version = "=0.28.3" }
 
 # support crate for macros feature
-pyo3-macros = { path = "pyo3-macros", version = "=0.28.2", optional = true }
+pyo3-macros = { path = "pyo3-macros", version = "=0.28.3", optional = true }
 
 # support crate for multiple-pymethods feature
 inventory = { version = "0.3.5", optional = true }
@@ -82,7 +82,7 @@ uuid = { version = "1.10.0", features = ["v4"] }
 parking_lot = { version = "0.12.3", features = ["arc_lock"] }
 
 [build-dependencies]
-pyo3-build-config = { path = "pyo3-build-config", version = "=0.28.2", features = ["resolve-config"] }
+pyo3-build-config = { path = "pyo3-build-config", version = "=0.28.3", features = ["resolve-config"] }
 
 [features]
 default = ["macros"]
diff --git a/README.md b/README.md
@@ -71,7 +71,7 @@ name = "string_sum"
 crate-type = ["cdylib"]
 
 [dependencies]
-pyo3 = "0.28.2"
+pyo3 = "0.28.3"
 ```
 
 **`src/lib.rs`**
@@ -137,7 +137,7 @@ Start a new project with `cargo new` and add  `pyo3` to the `Cargo.toml` like th
 
 ```toml
 [dependencies.pyo3]
-version = "0.28.2"
+version = "0.28.3"
 # Enabling this cargo feature will cause PyO3 to start a Python interpreter on first call to `Python::attach`
 features = ["auto-initialize"]
 ```
diff --git a/examples/decorator/.template/pre-script.rhai b/examples/decorator/.template/pre-script.rhai
@@ -1,4 +1,4 @@
-variable::set("PYO3_VERSION", "0.28.2");
+variable::set("PYO3_VERSION", "0.28.3");
 file::rename(".template/Cargo.toml", "Cargo.toml");
 file::rename(".template/pyproject.toml", "pyproject.toml");
 file::delete(".template");
diff --git a/examples/maturin-starter/.template/pre-script.rhai b/examples/maturin-starter/.template/pre-script.rhai
@@ -1,4 +1,4 @@
-variable::set("PYO3_VERSION", "0.28.2");
+variable::set("PYO3_VERSION", "0.28.3");
 file::rename(".template/Cargo.toml", "Cargo.toml");
 file::rename(".template/pyproject.toml", "pyproject.toml");
 file::delete(".template");
diff --git a/examples/plugin/.template/pre-script.rhai b/examples/plugin/.template/pre-script.rhai
@@ -1,4 +1,4 @@
-variable::set("PYO3_VERSION", "0.28.2");
+variable::set("PYO3_VERSION", "0.28.3");
 file::rename(".template/Cargo.toml", "Cargo.toml");
 file::rename(".template/plugin_api/Cargo.toml", "plugin_api/Cargo.toml");
 file::delete(".template");
diff --git 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", "0.28.2");
+variable::set("PYO3_VERSION", "0.28.3");
 file::rename(".template/Cargo.toml", "Cargo.toml");
 file::rename(".template/setup.cfg", "setup.cfg");
 file::delete(".template");
diff --git a/examples/word-count/.template/pre-script.rhai b/examples/word-count/.template/pre-script.rhai
@@ -1,4 +1,4 @@
-variable::set("PYO3_VERSION", "0.28.2");
+variable::set("PYO3_VERSION", "0.28.3");
 file::rename(".template/Cargo.toml", "Cargo.toml");
 file::rename(".template/pyproject.toml", "pyproject.toml");
 file::delete(".template");
diff --git a/newsfragments/5837.fixed.md b/newsfragments/5837.fixed.md
diff --git a/newsfragments/5847.fixed.md b/newsfragments/5847.fixed.md
diff --git a/newsfragments/5903.fixed.md b/newsfragments/5903.fixed.md
diff --git a/newsfragments/5907.fixed.md b/newsfragments/5907.fixed.md
diff --git a/newsfragments/5928.fixed.md b/newsfragments/5928.fixed.md
diff --git a/pyo3-build-config/Cargo.toml b/pyo3-build-config/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pyo3-build-config"
-version = "0.28.2"
+version = "0.28.3"
 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
@@ -1,6 +1,6 @@
 [package]
 name = "pyo3-ffi"
-version = "0.28.2"
+version = "0.28.3"
 description = "Python-API bindings for the PyO3 ecosystem"
 authors = ["PyO3 Project and Contributors <https://github.com/PyO3>"]
 keywords = ["pyo3", "python", "cpython", "ffi"]
@@ -41,7 +41,7 @@ generate-import-lib = ["pyo3-build-config/generate-import-lib"]
 paste = "1"
 
 [build-dependencies]
-pyo3-build-config = { path = "../pyo3-build-config", version = "=0.28.2", features = ["resolve-config"] }
+pyo3-build-config = { path = "../pyo3-build-config", version = "=0.28.3", features = ["resolve-config"] }
 
 [lints]
 workspace = true
diff --git a/pyo3-ffi/README.md b/pyo3-ffi/README.md
@@ -41,12 +41,12 @@ name = "string_sum"
 crate-type = ["cdylib"]
 
 [dependencies]
-pyo3-ffi = "0.28.2"
+pyo3-ffi = "0.28.3"
 
 [build-dependencies]
 # This is only necessary if you need to configure your build based on
 # the Python version or the compile-time configuration for the interpreter.
-pyo3_build_config = "0.28.2"
+pyo3_build_config = "0.28.3"
 ```
 
 If you need to use conditional compilation based on Python version or how
diff --git a/pyo3-introspection/Cargo.toml b/pyo3-introspection/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pyo3-introspection"
-version = "0.28.2"
+version = "0.28.3"
 description = "Introspect dynamic libraries built with PyO3 to get metadata about the exported Python types"
 authors = ["PyO3 Project and Contributors <https://github.com/PyO3>"]
 homepage = "https://github.com/pyo3/pyo3"
diff --git a/pyo3-macros-backend/Cargo.toml b/pyo3-macros-backend/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pyo3-macros-backend"
-version = "0.28.2"
+version = "0.28.3"
 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
@@ -1,6 +1,6 @@
 [package]
 name = "pyo3-macros"
-version = "0.28.2"
+version = "0.28.3"
 description = "Proc macros for PyO3 package"
 authors = ["PyO3 Project and Contributors <https://github.com/PyO3>"]
 keywords = ["pyo3", "python", "cpython", "ffi"]
@@ -23,7 +23,7 @@ experimental-inspect = ["pyo3-macros-backend/experimental-inspect"]
 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 = "=0.28.2" }
+pyo3-macros-backend = { path = "../pyo3-macros-backend", version = "=0.28.3" }
 
 [lints]
 workspace = true
diff --git a/pyproject.toml b/pyproject.toml
@@ -14,7 +14,7 @@ dynamic = ["version"]
 
 [tool.towncrier]
 filename = "CHANGELOG.md"
-version = "0.28.2"
+version = "0.28.3"
 start_string = "<!-- towncrier release notes start -->\n"
 template = ".towncrier.template.md"
 title_format = "## [{version}] - {project_date}"
diff --git a/tests/ui/reject_generics.stderr b/tests/ui/reject_generics.stderr
@@ -1,10 +1,10 @@
-error: #[pyclass] cannot have generic parameters. For an explanation, see https://pyo3.rs/v0.28.2/class.html#no-generic-parameters
+error: #[pyclass] cannot have generic parameters. For an explanation, see https://pyo3.rs/v0.28.3/class.html#no-generic-parameters
  --> tests/ui/reject_generics.rs:4:25
   |
 4 | struct ClassWithGenerics<A> {
   |                         ^
 
-error: #[pyclass] cannot have lifetime parameters. For an explanation, see https://pyo3.rs/v0.28.2/class.html#no-lifetime-parameters
+error: #[pyclass] cannot have lifetime parameters. For an explanation, see https://pyo3.rs/v0.28.3/class.html#no-lifetime-parameters
  --> tests/ui/reject_generics.rs:9:27
   |
 9 | struct ClassWithLifetimes<'a> {
