{"schemaVersion":"2026-07-21.signal.v2","id":"live-cd088a5a1960af014e4c","title":"September 10, 2026","slug":"mastra-mastra-core-1-66-0-september-10-2026-014e4c","url":"https://www.niubiagent.com/signals/mastra-mastra-core-1-66-0-september-10-2026-014e4c","jsonUrl":"https://www.niubiagent.com/api/posts/mastra-mastra-core-1-66-0-september-10-2026-014e4c.json","markdownUrl":"https://www.niubiagent.com/content/mastra-mastra-core-1-66-0-september-10-2026-014e4c","summaryHuman":"Mastra releases published September 10, 2026. Highlights Deploy-scoped worker provisioning for Mastra Cloud @mastra/deployer can now statically emit a versioned workers.json manifest (when shared storage + PubSub are configured) to provision dedicated orchestration/scheduler/background/custom workers, and runtime workers expose an authenticated endpoint so…","summaryAgent":"Treat September 10, 2026 as an official release signal. Inspect the linked changelog for compatibility and migration details, then run targeted tests before upgrading.","category":"agent-infrastructure","tags":["mastra","agent-runtime","typescript"],"sourceName":"Mastra releases","sourceUrl":"https://github.com/mastra-ai/mastra/releases/tag/%40mastra/core%401.66.0","publishedAt":"2026-09-11T09:37:43Z","curatedAt":"2026-09-19T00:17:36.806Z","confidence":0.96,"agentUsefulness":82,"sponsorIds":[],"language":"en","contentMode":"release-watch","verifiedAt":"2026-09-19T00:17:36.806Z","changeType":"release","actionItems":["Review the official Mastra releases release notes before upgrading.","Check compatibility, migration, and security notes against your current agent stack.","Run focused regression tests before production rollout."],"body":"Mastra releases published September 10, 2026. This release-watch entry was generated from the project's official GitHub release feed and is kept separate from human-reviewed editorial analysis. Release notes: Highlights Deploy-scoped worker provisioning for Mastra Cloud @mastra/deployer can now statically emit a versioned workers.json manifest (when shared storage + PubSub are configured) to provision dedicated orchestration/scheduler/background/custom workers, and runtime workers expose an authenticated endpoint so Cloud can compare live topology vs build-time. Advanced trace queries: richer filtering across span fields, metadata, feedback, and scores (with DB support) Trace querying gains high-power predicates for same-span properties (model/provider, duration, outcome, identity, lineage), portable top-level metadata. predicates, and richer feedback / scores filters—supported end-to-end in @mastra/server plus @mastra/pg , @mastra/clickhouse , and @mastra/duckdb . Observability signal deletion (feedback + scores) across storage, server, and client Core observability storage adds idempotent…","sponsors":[]}