Patch release v5.5.1
This patch is very small and focuses on vLLM and Gemma4!
** Fix export for gemma4 and add Integration tests (#45285) by @Cyrilvallez
** Fix vllm cis (#45139) by @ArthurZucker
Patch release v5.5.1
Transformers（HuggingFace）Releases / 4/9/2026
📰 NewsDeveloper Stack & InfrastructureTools & Practical UsageModels & Research
Key Points
- Patch release v5.5.1 focuses on fixes related to vLLM and Gemma4, indicating ongoing maintenance for AI model tooling compatibility.
- It fixes Gemma4 export behavior and adds integration tests to improve reliability of the export workflow.
- It also fixes a vLLM “cis” issue, addressing a specific compatibility or correctness problem in vLLM-related functionality.
- The release is described as very small, suggesting targeted bug fixes rather than major feature changes.
