Support Python 3.15

Upgrade pybind11 to 3.1.0, the first release tested on Python 3.15, and
add Python 3.15 to the wheel build and PR validation matrices. The
Ubuntu and Windows runners ship CMake 3.31, whose FindPython does not
know Python 3.15, so those jobs upgrade CMake from PyPI first.

Author: hkad98

.github/workflows/ci-build-release-wheels.yaml

@@ -46,6 +46,7 @@ jobs:
           - {version: '3.12', spec: 'cp312-cp312'}
           - {version: '3.13', spec: 'cp313-cp313'}
           - {version: '3.14', spec: 'cp314-cp314'}
+          - {version: '3.15', spec: 'cp315-cp315'}
         cpu:
           - {arch: 'x86_64', platform: 'x86_64', runner: 'ubuntu-latest'}
           - {arch: 'aarch64', platform: 'arm64', runner: 'ubuntu-24.04-arm'}
@@ -102,6 +103,7 @@ jobs:
           - {version: '3.12', version_long:  '3.12.8'}
           - {version: '3.13', version_long:  '3.13.1'}
           - {version: '3.14', version_long:  '3.14.0'}
+          - {version: '3.15', version_long:  '3.15.0'}
 
     steps:
       - name: checkout
@@ -132,6 +134,7 @@ jobs:
           - {version: '3.12'}
           - {version: '3.13'}
           - {version: '3.14'}
+          - {version: '3.15'}
 
     steps:
       - uses: actions/checkout@v3
@@ -140,6 +143,10 @@ jobs:
         with:
           python-version: ${{ matrix.python.version }}
 
+      # The runner default CMake 3.31 cannot find Python 3.15 with FindPython
+      - name: Upgrade CMake
+        run: python -m pip install -U cmake
+
       - name: Download Pulsar C++ client on Windows
         shell: bash
         run: |

.github/workflows/ci-pr-validation.yaml

@@ -58,7 +58,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        version: ['3.10', '3.14']
+        version: ['3.10', '3.15']
 
     steps:
       - name: checkout
@@ -68,6 +68,10 @@ jobs:
         with:
           python-version: "${{matrix.version}}"
 
+      # The runner default CMake 3.31 cannot find Python 3.15 with FindPython
+      - name: Upgrade CMake
+        run: python -m pip install -U cmake
+
       - name: Install Pulsar C++ client
         run: build-support/install-dependencies.sh
 
@@ -119,7 +123,7 @@ jobs:
           - {name: 'manylinux', py_suffix: ''}
           - {name: 'manylinux_musl', py_suffix: '-alpine'}
         python:
-          - {version: '3.14', spec: 'cp314-cp314'}
+          - {version: '3.15', spec: 'cp315-cp315'}
         cpu:
           - {arch: 'x86_64', platform: 'x86_64'}
 
@@ -166,7 +170,7 @@ jobs:
     strategy:
       matrix:
         py:
-          - {version: '3.14', version_long:  '3.14.0'}
+          - {version: '3.15', version_long:  '3.15.0'}
 
     steps:
       - name: checkout
@@ -188,7 +192,7 @@ jobs:
       fail-fast: false
       matrix:
         python:
-          - version: '3.14'
+          - version: '3.15'
 
     steps:
       - uses: actions/checkout@v3
@@ -197,6 +201,10 @@ jobs:
         with:
           python-version: ${{ matrix.python.version }}
 
+      # The runner default CMake 3.31 cannot find Python 3.15 with FindPython
+      - name: Upgrade CMake
+        run: python -m pip install -U cmake
+
       - name: Download Pulsar C++ client on Windows
         shell: bash
         run: |

README.md

@@ -25,7 +25,7 @@ Pulsar Python clients support a variety of Pulsar features to enable building ap
 
 ## Requirements
 
-- Python 3.10, 3.11, 3.12, 3.13 or 3.14
+- Python 3.10, 3.11, 3.12, 3.13, 3.14 or 3.15
 - A C++ compiler that supports C++11
 - CMake >= 3.18
 - [Pulsar C++ client library](https://github.com/apache/pulsar-client-cpp)

RELEASE.md

@@ -132,7 +132,7 @@ stay open for at least 72 hours ***
 Python wheels:
 https://dist.apache.org/repos/dist/dev/pulsar/pulsar-client-python-X.Y.Z-candidate-N/
 
-The supported python versions are 3.10, 3.11, 3.12, 3.13 and 3.14. The
+The supported python versions are 3.10, 3.11, 3.12, 3.13, 3.14 and 3.15. The
 supported platforms and architectures are:
 - Windows x86_64 (windows/)
 - glibc-based Linux x86_64 (linux-glibc-x86_64/)

dependencies.yaml

@@ -18,6 +18,6 @@
 #
 
 pulsar-cpp: 4.2.0
-pybind11: 3.0.1
+pybind11: 3.1.0
 # The OpenSSL dependency is only used when building Python from source
 openssl: 1.1.1q

pulsar/__init__.py

@@ -21,7 +21,7 @@
 The Pulsar Python client library is based on the existing C++ client library.
 All the same features are exposed through the Python interface.
 
-Currently, the supported Python versions are 3.10, 3.11, 3.12, 3.13 and 3.14.
+Currently, the supported Python versions are 3.10, 3.11, 3.12, 3.13, 3.14 and 3.15.
 
 =================
 Install from PyPI