March 2026: Implemented a correctness-focused improvement in the Stream Chunk Builder for BerriAI/litellm. The change ensures annotations from all streaming chunks are merged, preventing loss of later-chunk annotations and improving compatibility with providers that distribute annotations across chunks. This fix strengthens end-to-end streaming accuracy for downstream consumers and reduces edge-case failures in streaming workflows.

December 2025 monthly summary for browser-use/browser-use: Focused on refining XAI vision enablement and stabilizing model capabilities across releases. The key feature delivered is selective vision enablement for XAI models, ensuring grok-2 and grok-4 can use vision while grok-3 and grok-code continue to operate without vision. This aligns vision support with model capabilities, improving user experience and model performance.