v3.0.1 release

Author: wjakob

docs/bazel.rst

@@ -27,8 +27,8 @@ in your MODULE.bazel file:
     # Place this in your MODULE.bazel file.
     # The major version of nanobind-bazel is equal to the version
     # of the internally used nanobind.
-    # In this case, we are building bindings with nanobind v3.0.0.
-    bazel_dep(name = "nanobind_bazel", version = "3.0.0")
+    # In this case, we are building bindings with nanobind v3.0.1.
+    bazel_dep(name = "nanobind_bazel", version = "3.0.1")
 
 To instead use a development version from GitHub, you can declare the
 dependency as a ``git_override()`` in your MODULE.bazel:

docs/changelog.rst

@@ -11,6 +11,34 @@ versioning. Please review the :ref:`ABI compatibility <abi_compatibility>`
 documentation for details.
 
 
+Version 3.0.1 (Aug 28, 2026)
+----------------------------
+
+- Fixed an issue where the ``std::chrono::duration`` caster interpreted a
+  Python float even when implicit conversion was not desired.
+  (PR `#1420 <https://github.com/wjakob/nanobind/pull/1420>`__).
+
+- Minor tweak to the ``NB_SLOT_ALIAS`` macro so that ``clang-cl`` can compile
+  nanobind 3.0.0 code on Windows. This compiler is now also tested by the CI.
+  (PR `#1421 <https://github.com/wjakob/nanobind/pull/1421>`__).
+
+- Fixed two problems in the ``constexpr`` logic that processes function
+  annotations. Bindings could cause OOB writes by declaring an incorrect number
+  of ``nb::arg`` annotations. A nullary method with an implicit ``self``
+  annotation failed to compile. (PR `#1419
+  <https://github.com/wjakob/nanobind/pull/1419>`__).
+
+- Reverted a change from version 2.13.0 (PR `#1334
+  <https://github.com/wjakob/nanobind/pull/1334>`__), where the stub generator
+  stripped the prefix of the enclosing class and wrote the short name of a
+  nested class. PyRight/mypy handle the qualified form, and need it to avoid
+  ambiguities. (PR `#1422 <https://github.com/wjakob/nanobind/pull/1422>`__).
+
+- The package metadata now declares ``requires-python = ">=3.10"`` so that
+  installers do not pick up an incompatible version. (Issue `#1424
+  <https://github.com/wjakob/nanobind/issues/1424>`__, PR `#1425
+  <https://github.com/wjakob/nanobind/pull/1425>`__).
+
 Version 3.0.0 (Aug 22, 2026)
 ----------------------------
 
@@ -376,6 +404,10 @@ improvements:
 
 - Internal ABI version 22.
 
+**Note**: The 3.0.0 release was yanked since it mistakenly still declared
+Python 3.9 compatibility. It is supserseded by the 3.0.1 patch release, which
+also includes several bugfixes.
+
 Version 2.15.0 (Aug 15, 2026)
 -----------------------------
 

docs/index.rst

@@ -57,9 +57,9 @@ nanobinds depends on
 - **Python 3.10+** or **PyPy 7.3.12+** (the *3.10* and *3.11* PyPy flavors are
   supported, though there are :ref:`some limitations <pypy_issues>`).
 - **CMake 3.15+**.
-- **A C++17 compiler**: Clang 8+, GCC 8+, MSVC2019+, MinGW-w64, Intel ICX
-  (the modern Clang-based Intel compiler), and the CUDA NVCC compiler are
-  officially supported. Others (Cygwin, older Intel compilers, ..) may work
+- **A C++17 compiler**: Clang 8+, GCC 8+, MSVC2019+, ``clang-cl``, MinGW-w64,
+  Intel ICX (the modern Clang-based Intel compiler), and the CUDA NVCC compiler
+  are officially supported. Others (Cygwin, older Intel compilers, ..) may work
   as well but will not receive support.
 
 .. only:: not latex

include/nanobind/nanobind.h

@@ -23,7 +23,7 @@
 
 #define NB_VERSION_MAJOR 3
 #define NB_VERSION_MINOR 0
-#define NB_VERSION_PATCH 0
+#define NB_VERSION_PATCH 1
 #define NB_VERSION_DEV   0 // A value > 0 indicates a development release
 
 // nb_python.h includes Python.h, which according to

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "scikit_build_core.build"
 
 [project]
 name = "nanobind"
-version = "3.0.0"
+version = "3.0.1"
 description = "nanobind: tiny and efficient C++/Python bindings"
 requires-python = ">=3.10"
 readme.content-type = "text/markdown"

src/__init__.py

@@ -16,7 +16,7 @@ def cmake_dir() -> str:
     "Return the path to the nanobind CMake module directory."
     return os.path.join(os.path.abspath(os.path.dirname(__file__)), "cmake")
 
-__version__ = "3.0.0"
+__version__ = "3.0.1"
 
 __all__ = (
     "__version__",