Build wheels for Python 3.13 and drop support for 3.8

.github/workflows/ci.yml

@@ -17,7 +17,7 @@ jobs:
       CT2_VERBOSE: 1
     strategy:
       matrix:
-        os: [ubuntu-20.04]
+        os: [ubuntu-22.04]
         backend: [mkl, dnnl]
 
     steps:
@@ -74,7 +74,7 @@ jobs:
 
 
   build-and-test-cpp-aarch64:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     env:
       CT2_VERBOSE: 1
     strategy:
@@ -132,10 +132,10 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-20.04, windows-2019]
+        os: [ubuntu-22.04, windows-2019]
         arch: [auto64]
         include:
-        - os: ubuntu-20.04
+        - os: ubuntu-22.04
           arch: aarch64
         - os: macos-13
           arch: arm64
@@ -150,7 +150,7 @@ jobs:
         name: Set up QEMU
 
       - name: Build wheels
-        uses: pypa/cibuildwheel@v2.21.3
+        uses: pypa/cibuildwheel@v2.22.0
         with:
           package-dir: python
           output-dir: python/wheelhouse
@@ -181,13 +181,13 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-20.04, windows-2019]
+        os: [ubuntu-22.04, windows-2019]
 
     steps:
-      - name: Set up Python 3.8
+      - name: Set up Python 3.9
         uses: actions/setup-python@v5
         with:
-          python-version: 3.8
+          python-version: 3.9
 
       - uses: actions/checkout@v4
 
@@ -206,13 +206,13 @@ jobs:
       - name: Install wheel
         if: startsWith(matrix.os, 'ubuntu')
         run: |
-          pip install *cp38*manylinux*x86_64.whl
+          pip install *cp39*manylinux*x86_64.whl
 
       - name: Install wheel
         if: startsWith(matrix.os, 'windows')
         shell: bash
         run: |
-          pip install *cp38*win*.whl
+          pip install *cp39*win*.whl
 
       - name: Run tests
         shell: bash
@@ -226,10 +226,10 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: Set up Python 3.8
+      - name: Set up Python 3.9
         uses: actions/setup-python@v5
         with:
-          python-version: 3.8
+          python-version: 3.9
 
       - name: Install dependencies
         run: |
@@ -255,7 +255,7 @@ jobs:
   publish-python-wheels-on-pypi:
     if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
     needs: [build-and-test-cpp-x86_64, build-python-wheels, test-python-wheels, check-python-style]
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
 
     steps:
       - name: Download Python wheels
@@ -274,7 +274,7 @@ jobs:
 
 
   build-and-push-docker-images:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v4
         with:
@@ -305,10 +305,10 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: Set up Python 3.8
+      - name: Set up Python 3.9
         uses: actions/setup-python@v5
         with:
-          python-version: 3.8
+          python-version: 3.9
 
       - name: Download CTranslate2 wheels
         uses: actions/download-artifact@v4
@@ -319,7 +319,7 @@ jobs:
 
       - name: Install CTranslate2 wheel
         run: |
-          pip install *cp38*manylinux*x86_64.whl
+          pip install *cp39*manylinux*x86_64.whl
 
       - name: Install dependencies to build docs
         working-directory: docs

CHANGELOG.md

@@ -5,7 +5,7 @@
 ### Fixes and improvements
 
 ## [v4.5.0](https://github.com/OpenNMT/CTranslate2/releases/tag/v4.5.0) (2024-10-22)
-Note: The Ctranslate2 Python package now supports CUDNN 9 and is no longer compatible with CUDNN 8.  
+Note: The Ctranslate2 Python package now supports CUDNN 9 and is no longer compatible with CUDNN 8.
 
 ### New features
 * Support Phi3 (#1800)
@@ -18,8 +18,8 @@ Note: The Ctranslate2 Python package now supports CUDNN 9 and is no longer compa
 * Update doc AWQ (#1795)
 
 ## [v4.4.0](https://github.com/OpenNMT/CTranslate2/releases/tag/v4.4.0) (2024-09-09)
-**Removed**: Flash Attention support in the Python package due to significant package size increase with minimal performance gain.  
-Note: Flash Attention remains supported in the C++ package with the `WITH_FLASH_ATTN` option.  
+**Removed**: Flash Attention support in the Python package due to significant package size increase with minimal performance gain.
+Note: Flash Attention remains supported in the C++ package with the `WITH_FLASH_ATTN` option.
 Flash Attention may be re-added in the future if substantial improvements are made.
 
 ### New features

docker/Dockerfile

@@ -1,4 +1,4 @@
-FROM nvidia/cuda:12.2.2-cudnn8-devel-ubuntu20.04 as builder
+FROM nvidia/cuda:12.2.2-cudnn8-devel-ubuntu22.04 as builder
 
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \
@@ -77,7 +77,7 @@ RUN cd python && \
     python3 -m pip --no-cache-dir install -r install_requirements.txt && \
     python3 setup.py bdist_wheel --dist-dir $CTRANSLATE2_ROOT
 
-FROM nvidia/cuda:12.2.2-base-ubuntu20.04
+FROM nvidia/cuda:12.2.2-base-ubuntu22.04
 
 # We remove the cuda-compat package because it conflicts with the CUDA Enhanced Compatibility.
 # See e.g. https://github.com/NVIDIA/nvidia-docker/issues/1515
@@ -86,7 +86,7 @@ RUN apt-get update && \
         libcublas-12-2 \
         libcudnn8=8.9.7.29-1+cuda12.2 \
         libnccl2=2.19.3-1+cuda12.2 \
-        libopenmpi3=4.0.3-0ubuntu1 \
+        libopenmpi3=4.1.2-2ubuntu1 \
         openmpi-bin \
         libgomp1 \
         python3-pip \

docker/build_all.sh

@@ -42,4 +42,4 @@ build()
     fi
 }
 
-build Dockerfile ubuntu20.04-cuda12.2
+build Dockerfile ubuntu22.04-cuda12.2

docs/installation.md

@@ -29,7 +29,7 @@ On Windows [the Visual C++ runtime](https://www.microsoft.com/en-US/download/det
 Docker images can be downloaded from the [GitHub Container registry](https://github.com/OpenNMT/CTranslate2/pkgs/container/ctranslate2):
 
 ```bash
-docker pull ghcr.io/opennmt/ctranslate2:latest-ubuntu20.04-cuda11.2
+docker pull ghcr.io/opennmt/ctranslate2:latest-ubuntu22.04-cuda11.2
 ```
 
 The images include:
@@ -40,7 +40,7 @@ The images include:
 * the translator executable, which is the image entrypoint:
 
 ```bash
-docker run --rm ghcr.io/opennmt/ctranslate2:latest-ubuntu20.04-cuda11.2 --help
+docker run --rm ghcr.io/opennmt/ctranslate2:latest-ubuntu22.04-cuda11.2 --help
 ```
 
 To update to the new version that supports CUDA 12.

docs/requirements.txt

@@ -1,3 +1,3 @@
-myst-parser==0.17.*
+myst-parser==0.18.*
 sphinx-rtd-theme==1.0.*
-sphinx==4.5.*
+sphinx==5.3.*

docs/translation.md

@@ -46,7 +46,7 @@ The translation client can be used via the Docker image:
 
 ```bash
 echo "▁H ello ▁world !" | docker run -i --rm -v $PWD:/data \
-    ghcr.io/opennmt/ctranslate2:latest-ubuntu20.04-cuda11.2 --model /data/ende_ctranslate2 --device cpu
+    ghcr.io/opennmt/ctranslate2:latest-ubuntu22.04-cuda11.2 --model /data/ende_ctranslate2 --device cpu
 ```
 
 To translate on GPU, use `docker run --gpus all` and set the option `--device cuda`. Use `--help` to see the list of available options.

python/setup.py

@@ -83,11 +83,11 @@ def _maybe_add_library_root(lib_name):
         "License :: OSI Approved :: MIT License",
         "Programming Language :: Python :: 3",
         "Programming Language :: Python :: 3 :: Only",
-        "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",
         "Topic :: Scientific/Engineering :: Artificial Intelligence",
     ],
     project_urls={
@@ -100,7 +100,7 @@ def _maybe_add_library_root(lib_name):
     packages=find_packages(exclude=["bin"]),
     package_data=package_data,
     ext_modules=[ctranslate2_module],
-    python_requires=">=3.8",
+    python_requires=">=3.9",
     install_requires=[
         "setuptools",
         "numpy",

tools/benchmark/opennmt_ende_wmt14/ctranslate2/Dockerfile

@@ -1,4 +1,4 @@
-FROM opennmt/ctranslate2:3.6.0-ubuntu20.04-cuda11.2 as model_converter
+FROM opennmt/ctranslate2:3.6.0-ubuntu22.04-cuda11.2 as model_converter
 
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \
@@ -17,7 +17,7 @@ RUN ct2-opennmt-py-converter --model_path averaged-10-epoch.pt --output_dir /mod
 RUN wget -q -P /model https://opennmt-models.s3.amazonaws.com/vmap.txt
 RUN cp sentencepiece.model /model
 
-FROM opennmt/ctranslate2:3.6.0-ubuntu20.04-cuda11.2
+FROM opennmt/ctranslate2:3.6.0-ubuntu22.04-cuda11.2
 
 COPY --from=model_converter /model /model
 

tools/benchmark/opus_mt_ende/ctranslate2/Dockerfile

@@ -1,4 +1,4 @@
-FROM opennmt/ctranslate2:3.6.0-ubuntu20.04-cuda11.2
+FROM opennmt/ctranslate2:3.6.0-ubuntu22.04-cuda11.2
 
 RUN apt-get update && \
     DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \

tools/benchmark/opus_mt_ende/marian/Dockerfile

@@ -1,4 +1,4 @@
-FROM nvidia/cuda:12.2.2-devel-ubuntu20.04 as builder
+FROM nvidia/cuda:12.2.2-devel-ubuntu22.04 as builder
 
 RUN apt-get update && \
     DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \