msgpack · methane · Oct 8, 2025 · Oct 8, 2025 · Oct 8, 2025
diff --git a/.github/workflows/wheel.yml b/.github/workflows/wheel.yml
@@ -29,7 +29,7 @@ jobs:
          make cython

      - name: Build
-        uses: pypa/cibuildwheel@v3.1.1
+        uses: pypa/cibuildwheel@v3.2.0
        env:
          CIBW_TEST_REQUIRES: "pytest"
          CIBW_TEST_COMMAND: "pytest {package}/test"

diff --git a/ChangeLog.rst b/ChangeLog.rst
@@ -1,3 +1,16 @@
+1.1.2
+=====
+
+Release Date: 2025-10-08
+
+This release does not change source code. It updates only building wheels:
+
+* Update Cython to v3.1.4
+* Update cibuildwheel to v3.2.0
+* Drop Python 3.8
+* Add Python 3.14
+* Add windows-arm
+
 1.1.1
 =====


diff --git a/msgpack/__init__.py b/msgpack/__init__.py
@@ -4,8 +4,8 @@
 from .exceptions import *  # noqa: F403
 from .ext import ExtType, Timestamp

-version = (1, 1, 1)
-__version__ = "1.1.1"
+version = (1, 1, 2)
+__version__ = "1.1.2"


 if os.environ.get("MSGPACK_PUREPYTHON"):

diff --git a/pyproject.toml b/pyproject.toml
@@ -1,31 +1,21 @@
 [build-system]
-# 75.3.0 is the latest version supporting Python 3.8
-requires = ["setuptools >= 75.3.0"]
+requires = ["setuptools >= 80.9.0"]
 build-backend = "setuptools.build_meta"

 [project]
 name = "msgpack"
 dynamic = ["version"]
-# `license = "Apache-2.0"` is preferred. But keep old syntax for Python 3.8 compatibility.
-# https://github.com/msgpack/msgpack-python/pull/637
-license = {text="Apache 2.0"}
+license = "Apache-2.0"
 authors = [{name="Inada Naoki", email="songofacandy@gmail.com"}]
 description = "MessagePack serializer"
 readme = "README.md"
 keywords = ["msgpack", "messagepack", "serializer", "serialization", "binary"]
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 classifiers = [
    "Development Status :: 5 - Production/Stable",
    "Operating System :: OS Independent",
    "Topic :: File Formats",
    "Intended Audience :: Developers",
-    "Programming Language :: Python :: 3.8",
-    "Programming Language :: Python :: 3.9",
-    "Programming Language :: Python :: 3.10",
-    "Programming Language :: Python :: 3.11",
-    "Programming Language :: Python :: 3.12",
-    "Programming Language :: Python :: 3.13",
-    "Programming Language :: Python :: 3.14",
    "Programming Language :: Python :: Implementation :: CPython",
    "Programming Language :: Python :: Implementation :: PyPy",
 ]
@@ -46,7 +36,7 @@ version = {attr = "msgpack.__version__"}

 [tool.ruff]
 line-length = 100
-target-version = "py38"
+target-version = "py39"
 lint.select = [
    "E", # pycodestyle
    "F", # Pyflakes

diff --git a/requirements.txt b/requirements.txt
@@ -1 +1 @@
-Cython~=3.1.2
+Cython==3.1.4
diff --git a/test/test_buffer.py b/test/test_buffer.py
@@ -17,7 +17,7 @@ def test_unpack_bytearray():
    obj = unpackb(buf, use_list=1)
    assert [b"foo", b"bar"] == obj
    expected_type = bytes
-    assert all(type(s) == expected_type for s in obj)
+    assert all(type(s) is expected_type for s in obj)


 def test_unpack_memoryview():
@@ -26,7 +26,7 @@ def test_unpack_memoryview():
    obj = unpackb(view, use_list=1)
    assert [b"foo", b"bar"] == obj
    expected_type = bytes
-    assert all(type(s) == expected_type for s in obj)
+    assert all(type(s) is expected_type for s in obj)


 def test_packer_getbuffer():