Under the hood
- MCP startup and protocol-version handling were tightened, including clearer resource-read response shaping and related control-path updates.
- Permission-related environment configuration was reshuffled; several older experimental flags (including apply-patch line-ending preservation and legacy home overrides) were dropped or replaced.
- Thread plumbing expanded for item listing, search results, and queue-change notifications, plus a collaboration “waiting ended” lifecycle event.
- Account token-usage summary types and response completion / usage metadata were reworked for richer usage reporting.
- Plugin share context/principal models and marketplace upgrade response types landed as groundwork for sharing and marketplace flows.
- Config surface area grew for analytics, auto-review, and macOS computer-use settings (TOML-backed), ahead of broader exposure.
- Client messaging moved toward explicit message-result events instead of simple ack-style results; assorted older payloads (rate-limit credit helpers, announcement tips, and unused thread/admin responses) were removed or consolidated.