May 2026 monthly summary for huggingface/transformers. Focused on reinforcing reliability around custom attention implementations. Delivered 'Attention mask guidance for custom attention functions' to ensure a matching attention mask function is registered when extending attention, preventing silent performance degradation and preserving modeling correctness. Includes a copyable code sample to register the sdpa mask by default, and updated guidance to help developers avoid regressions when altering attention behavior. This work enhances performance predictability and developer experience for users implementing custom attention kernels.

March 2026 (wandb/docs): Delivered a focused documentation improvement by removing a self-referential link in the Hugging Face integration guide, eliminating potential navigation loops and confusion for users integrating HuggingFace with WandB. No high-priority bugs fixed for wandb/docs this month. The change aligns with issue #2224 and is expected to reduce onboarding friction and support inquiries. Key commit: 388bf6e0721cb9e4cb0d860fa2c2b84b7ea8543b; the edit enhances clarity and maintainability of the docs.