v4.8.1

New features

• Support for Gemma4 12B dense model (#2060) by @jordimas

Fixes and improvements

• Harden legacy converter checkpoint loading (#2036) by @igorsantosgrueiro
• Fix model load heap overflow (#2068) by @jordimas, reported by Chegne Eu Joe (Project Umbra)
• Fix process-killing integer division by zero when Whisper align() gets a window with no frames (#2065) by @MAkcanca
• CI/CD compilation fixes for Windows (#2069) by @jordimas
• Optimize attention softmax buffer reuse (#2066) by @jordimas

v4.8.0

v4.8.0 (2026-06-06)

New features

• Add support for Google T5Gemma2 (#2058) by @jordimas
• Enables PACKED_GEMM by default for Intel MKL to improve Intel CPU performance (#2055) by @jordimas
• Upgrade Thrust submodule from 1.12.0 to CCCL 2.7.0 (#2062) by @jordimas

Fixes and improvements

• Adopt latest BS_thread_pool library version v5.1.0 (#2053) by @3manifold
• Upgrade CI system dependencies and reduce build time (#2056) by @jordimas
• Fix PyPI publish: download wheels to dist/ to avoid directory hash error (#2050) by @jordimas
• Fix flaky transformers_wav2vec2 test (#1996) by @3manifold

v4.7.2

v4.7.2 (2026-05-18)

New features

• Gemma4 support for dense model (#2048) by @jordimas

Fixes and improvements

• Gemma 3 model conversion fixes (#2037) by @jordimas
• Update source ROCM version from 7.2 to 7.2.1 (#2030) by @racedale
• Free curand states before the thread is destroyed (#1912) by @no1d

v4.7.1

Fixes and improvements

• Fix Windows build (#2007) @sssshhhhhh

v4.7.0

New features

• Introduce AMD GPU support with ROCm HIP (#1989) @sssshhhhhh
• Compatibility with Transformers v5 (#1999) by @jordimas

Fixes and improvements

• Assume less about whisper vocab (#2000) by @sssshhhhhh
• Use LLVM ThreadSanitizer instead of Google (#1993) by @3manifold
• Optimize all builds with parallel execution (#1992) by @3manifold
• Remove unecessary zero init from conv1d (#1990) by @sssshhhhhh
• Integrate Clang AddressSanitizer in tests (#1903) by @3manifold
• Enable multiple of 16 padding for INT8 Tensor Cores (#1982) by @Purfview
• Add activation and dilation to conv1d (#1979) by @sssshhhhhh
• Minor refactor to CMakeLists.txt (#1980) by @sssshhhhhh
• Remove unnecessary check from wav2vec2 (#1977) by @plan9better
• Add optional residual add to gemm op (#1975) by @sssshhhhhh
• Implement cuda layernorm axis (#1971) by @sssshhhhhh
• Fix Eole conversion (#1998) by @vince62s
• Gemma 3 conversion improvements (#1991) by @sssshhhhhh
• Add causal flag to fa2 (#1976) by @sssshhhhhh
• Fixes cross attention tests and refactors code (#1974) by @jordimas
• Fix CUDA bf16 median filter (#1972) by @sssshhhhhh
• Fix various compiler warnings (#1970) by @sssshhhhhh

v4.6.3

v4.6.3 (2026-01-06)

New features

• T5Gemma model conversion and inference (#1962) by @jordimas
• Support for CUDA 12.8 (#1937, #1940) by @Purfview
• Conv1d pure CUDA implementation (#1949), makes cuDNN an optional dependency by @jordimas
• Add CUDA implementation for median filter (#1917) by @ja2d8a4v

Fixes and improvements

• Fix issue- tokens batch_type may exceed max_batch_size (#1948) by @anterart
• Fixes AWQ support for Qwen 2.5/3 and Phi3 (#1951, #1952, #1953) by @BBC-Esq

CTranslate2 4.6.2

New features

• Qwen 3 support (#1943) by @jordimas
• Gemma 3 text support (#1936) by @jordimas

Fixes and improvements

• Fixed pkg_resources Deprecated Warning (#1911) by @thawancomt
• Disable INT8 for sm120 - Blackwell GPUs (#1937) by @Purfview
• FIX: package libctranslate2.so in wheel to avoid build fail (#1920) by @yzewei

CTranslate2 4.6.1

New features

• Python 3.14 support (#1926)
• Support for Cuda 12.4 (#1925)
• Update Intel oneAPI to version 2025.3 (#1931)

CTranslate2 4.6.0

Note: The Ctranslate2 Python package now supports python 3.13, drop the support for python 3.8.

New features

• Pyhton 3.13 support (#1858)
• Support returning hidden vector in Wav2Vec2 and Wav2Vec2Bert Models (#1867)
• Add noexecstack linker flags (#1852 + #1861)
• Support Qwen2 (#1820)
• Eoleconv (#1832)
• Add support RobertModel (#1864)

Fixes and improvements

• Fix github action (#1871)
• Prevent double library def (#1818)

CTranslate2 4.5.0

Note: The Ctranslate2 Python package now supports CUDNN 9 and is no longer compatible with CUDNN 8.

New features

• Support Phi3 (#1800)
• Support Mistral Nemo (#1785)
• Support Wav2Vec2Bert ASR (#1778)

Fixes and improvements

• Upgrade to CUDNN9 (#1803)
• Fix logits vocab (#1786 + #1791)
• Update doc AWQ (#1795)