Features
- api: add support for message threads
- api: add usage and cost reports by dimension, mark older reports legacy
Bug Fixes
- auth: don't share an in-flight token fetch across base URLs
- tools: send a change made in place to an earlier message of a tool runner with the next request
Chores
- docs: clarify plugin content scan and validation descriptions
- docs: clarify plugin served_version_pinned and updated_at
- docs: fix usage and cost report examples and ending_at docs
- docs: rate limit model lists vary by organization and workspace