v2026.09.21 v4.20.15
tobychui/zoraxySep 20, 2026 → Sep 21, 20260 days between releases
What's New
Older release adds background job watchdogs and runtime updates; newer release fixes server stability and OpenAPI parsing.
Improvements
- Upgraded Ruby to 4.0.7 and Docker base to Ubuntu Noble in older release
- Improved server stability and OpenAPI compatibility in newer release
Bug Fixes
- Fixed server crashes caused by failed log notifications
- Fixed OpenAPI parsing for JSON bodies with empty properties
- Fixed tool call compatibility for omitted arguments
Upgrade Notes
The provided release notes are from different repositories (Huginn and FastMCP) and describe unrelated projects, so there are no direct upgrade notes between these versions.
The Two Releases
v2026.09.21
Sep 20, 2026· 1 month ago
This release focuses on improving background job reliability with new watchdogs and configurable worker management, introduces opt-in proxy routing for Agents, and updates the Ruby and Docker runtimes.
Full release notesv4.20.15
Sep 21, 2026· 1 month ago
Improves server stability and OpenAPI compatibility by handling edge cases in tool execution, logging, and schema parsing.
Full release notes