v1.5.3 @mastra/core@1.68.0
mastra-ai/mastraSep 23, 2026 → Sep 23, 20260 days between releases
What's New
Major upgrade to MCP v2 with new vector stores and observability features
Breaking Changes
- Agent Controller stream message events changed (structure altered)
- @mastra/mcp@2.0.0 removes legacy handshake and uses new suspend/resume patterns
New Features
- New vector stores: Azure AI Search and Weaviate
- Live channel resolvers
- New prune() execution for storage adapters
- Thread ownership transfer via Memory.updateThreadResourceId
Improvements
- Observability trace querying now supports real pagination and delta polling
- Durable-agent performance improved by stopping default running checkpoint persistence
- Token-budgeted conversation history via messageHistory option
Upgrade Notes
Update MCP clients to support the new v2 suspend/resume patterns and remove legacy handshakes. Update Agent Controller stream message event handlers to match the new event structure.
The Two Releases
Clypra v1.5.3
Sep 23, 2026· 29 days ago
Minimal release notes: "Automated multi-platform release bundle — macOS (arm64), Windows (x64), Linux (x64)."
Full release notesSeptember 22, 2026
Sep 23, 2026· 29 days ago
This release rebuilds `@mastra/mcp` on the MCP v2 (2026-07-28) server architecture, adds two new vector stores (Azure AI Search + Weaviate), and improves observability trace querying with real pagination and delta polling. It also optimizes durable-agent performance.
Full release notes