@mastra/core@1.74.0 @mastra/core@1.75.0
hcengineering/platformOct 5, 2026 → Oct 7, 20262 days between releases
What's New
Introduces Span Query API, trace aggregation, and @mastra/connect 1.0 stable release
Breaking Changes
- MCP tools approval changed: use requireApproval instead of autoApproveTools
- API rename: integrations -> providers
- Slack channel ID changed from slack to slack-channels
- AgentController model switching signature changed
- React hooks positional args replaced with single object argument
New Features
- Span Query API for querying completed spans across traces
- Trace aggregation with token and cost analytics
- Self-embedding vector stores for Semantic Recall
- @mastra/connect 1.0 stable with Teams and Discord improvements
- Notification delivery policy with resourceId filtering
Improvements
- Trace aggregation now supports ClickHouse, DuckDB, and Postgres
- MongoDBVector now supports autoEmbed for self-embedding
- Sessions now persist one active model per thread
Upgrade Notes
Update MCP tool approval logic from autoApproveTools to requireApproval. Update API references from integrations to providers and Slack channel IDs from slack to slack-channels. Adjust AgentController model switching and React hook signatures to match the new v1.75.0 API.
The Two Releases
October 1, 2026
Oct 5, 2026· 17 days ago
This release adds the ability for tools to read the full conversation via agent.getMessages(), improves observational memory history search with filtering and paging capabilities, and introduces new accessible form field primitives in the Playground UI.
Full release notesOctober 7, 2026
Oct 7, 2026· 15 days ago
This release introduces a Span Query API for querying completed spans, trace aggregation with token and cost analytics across stores, self-embedding vector stores for Semantic Recall, and the stable release of @mastra/connect 1.0 with new channels/providers and enhanced observability features.
Full release notes