v0.54.3 v2.12
caddyserver/caddySep 9, 2026 → Sep 9, 20260 days between releases
What's New
Major update introduces atomic file transfers and a unified ACE-based editor, significantly changing connector and transport protocols.
Breaking Changes
- Removal of the legacy file-editor modal
- Enforced negotiated WebSocket payload ceilings
- Bounded remote connector tool payloads
New Features
- Atomic HTTP file transfers with SHA-256 verification
- Unified Editor with ACE syntax highlighting
- Native tool calls preserved in Responses API
- Movable Canvas rail
- Independent, lazily loaded directory trees
Improvements
- Hardened connector protocols with atomic transfers
- Enhanced Responses API for native tool calls
- Improved Canvas UI with movable rails
Upgrade Notes
The legacy file-editor modal has been removed, requiring UI updates. Clients must be updated to support the new atomic file transfers and WebSocket payload ceilings.
The Two Releases
Release v0.54.3
Sep 9, 2026· 1 month ago
This maintenance release introduces configuration flexibility for databases and Redis, enhances AI provider integrations like LiteLLM and Gemini, and fixes various workflow and alert bugs.
Full release notesv2.12
Sep 9, 2026· 1 month ago
A major update focusing on hardening connector and transport protocols with atomic file transfers, unifying the editor experience with syntax highlighting, and improving the Responses API for native tool calls.
Full release notes