@mastra/core@1.74.0 @mastra/core@1.75.0
mastra-ai/mastraOct 5, 2026 → Oct 7, 20262 days between releases
What's New
Adds Span Query API and Trace aggregation with breaking changes to providers, React hooks, and MCP tools.
Breaking Changes
- API rename `integrations` → `providers`
- MCP tools no longer require approval by default
- Slack channel integration ID changed from `slack` → `slack-channels`
- AgentController model switching removed `modeId`/`scope`
- `@mastra/react` hooks signature changed from positional args to single object
New Features
- Span Query API for querying completed spans with filters and cursors
- Trace aggregation with token and cost analytics across stores
- Self-embedding vector stores for Semantic Recall
- Microsoft Teams support in `@mastra/connect`
- Sessions persist one active model per thread
Upgrade Notes
Update references from `integrations` to `providers` and Slack channel IDs from `slack` to `slack-channels`. Update `@mastra/react` hooks to use a single object argument instead of positional arguments. Adjust MCP tool configuration to explicitly set `requireApproval` if needed.
The Two Releases
October 1, 2026
Oct 5, 2026· 17 days ago
This release enhances tool context capabilities, observational memory search functionality, and introduces new accessible form field primitives in the Playground UI. Tools can now access full conversation history, and memory recall supports paging through observation groups.
Full release notesOctober 7, 2026
Oct 7, 2026· 15 days ago
This release introduces span query API, trace aggregation with token and cost analytics across multiple stores, self-embedding vector stores for semantic recall, and reaches @mastra/connect 1.0 with new capabilities.
Full release notes