Impact Score: 5/10
Hugging Face Transformers: Patch release: v5.5.2
Source available — automated, not human-reviewed
Component: transformers · Channel: stable. Automated analysis, not a compatibility certification. How this works.
Analysis updated: 2026-11-01.
⚡ Executive Summary (TL;DR)
Hugging Face Transformers v5.5.2. Source highlight: Small patch dedicated to optimizing gemma4, fixing inference with `use_cache=False` due to k/v states sharing between layers, as well as conversion mappings for some models that would inconsistently serialize their weight names. It contains the following PRs:
Who Does This Impact? (Role-Based Analysis)
💻 Software Engineers & Devs
Check the source notes against the package and APIs you use before upgrading.
📊 Product & Engineering Leads
Use the documented changes to assess relevance to your product; release frequency alone is not a quality measure.
⚙️ DevOps & Security
Verify the target version, runtime requirements and rollback procedure in the official documentation.
✨ New Features & Capabilities (1)
- Add MoE to Gemma4 TP plan (#45219) by @sywangyi and @Cyrilvallez
🔧 Bug Fixes & Patches (1)
- Fix conversion mappings for vlms (#45340)
📄 View Raw Release Notes (Original Developer Log)
Small patch dedicated to optimizing gemma4, fixing inference with `use_cache=False` due to k/v states sharing between layers, as well as conversion mappings for some models that would inconsistently serialize their weight names. It contains the following PRs:
- Add MoE to Gemma4 TP plan (#45219) by @sywangyi and @Cyrilvallez
- [gemma4] Dissociate kv states sharing from the Cache (#45312) by @Cyrilvallez
- [gemma4] Remove all shared weights, and silently skip them during loading (#45336) by @Cyrilvallez
- Fix conversion mappings for vlms (#45340) by @Cyrilvallez