Hugging Face Transformers: Patch release v4.42.2

Source available — automated, not human-reviewed

Component: transformers · Channel: stable. Automated analysis, not a compatibility certification. How this works.

Analysis updated: 2026-11-01.

Compatibility not verified — check source notes

$ python -m pip install 'transformers==4.42.2'

📄 .MD

🔧 Bug Fixes 2

⚡ Executive Summary (TL;DR)

Hugging Face Transformers v4.42.2. Source highlight: Thanks to our 2 contributors for their prompt fixing mostly applies for training and FA2!

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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.

🔧 Bug Fixes & Patches (2)

Fix Gemma2 4d attention mask (#31674)
don't zero out the attention_mask when using sliding window with flash attention (#31670)

📄 View Raw Release Notes (Original Developer Log)

# Patch release Thanks to our 2 contributors for their prompt fixing mostly applies for training and FA2! - Fix Gemma2 4d attention mask (#31674) by @hiyouga - don't zero out the attention_mask when using sliding window with flash attention (#31670) by @winglian

← Older Version Hugging Face Transformers v4.42.1 Newer Version → Hugging Face Transformers v4.42.3