In April 2026, the harness/canary project delivered a key reliability improvement: system event dispatch now waits for the ThreadRuntimeCore to become idle before triggering new events, eliminating race conditions when multiple events fire in quick succession. This change includes updated dispatch logic, targeted tests, and a minor release hygiene update. The work reduces silent errors and improves overall stability in event-driven workflows, supporting more predictable operational behavior for downstream services.

November 2025 — Harness/mcp-server delivered Pipeline Execution Timestamps Enhancement, enriching pipeline execution responses with human-readable timestamps and added formatted fields; backend population logic updated to populate the new fields. This aligns with AIDEVOPS-1548 and improves observability, debugging, and downstream analytics without breaking existing clients.

July 2025 — Harness MCP Server: deliverables focused on template governance and discovery, with cross-scope listing, data-contract enhancements, and vector-based semantic search. Completed key refactors and reliability fixes to enable scalable template management and discovery.