[feat] Allow transformers v5.0, add CI for transformers <v5 and >=v5#3586
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tomaarsen merged 3 commits intohuggingface:mainfrom Dec 5, 2025
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Pull request overview
This PR enables support for transformers v5.0 by updating the version constraint in pyproject.toml and adding CI matrix testing for both transformers <5.0.0 and >=5.0.0. The dual CI setup is intended to be temporary until Sentence Transformers exclusively adopts transformers >=5.0.0.
Key Changes
- Updated transformers dependency constraint from
<5.0.0to<6.0.0to allow v5.x releases - Added
transformers_versionmatrix dimension to CI with values<5.0.0and>=5.0.0 - Split dependency installation into conditional steps based on transformers version
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.
| File | Description |
|---|---|
| pyproject.toml | Updated transformers version constraint upper bound from 5.0.0 to 6.0.0 |
| .github/workflows/tests.yml | Added matrix dimension for transformers versions and conditional installation steps |
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Pull Request overview
pyproject.tomlDetails
The new CI tests are temporary and will be removed when Sentence Transformers moves to exclusively
transformers>=5.0.0with its new releases.