v2.6.1 clients/go/v0.9.0
high risk
tulir/whatsmeowAug 28, 2026 → Aug 28, 20260 days between releases
What's New
Implements AHP 0.9.0 with automation channels and breaking session API changes
Breaking Changes
- Renamed 'creationFailed' to 'failed'
- Removed 'error' from changeset/contentChanged
- Removed session-level forking from createSession
- Removed 'ContentNotFound' from exported error codes
New Features
- Automation catalogue and automation-run channels
- Turn errors are durable response parts
- Metadata in InitializeResult
Improvements
- Annotations now carry an 'origin' with required session URI
- Terminal state uses explicit 'running'/'exited' lifecycle
- Generated clients preserve unknown values for protocol enums
- SessionToolClientExecutionRequest narrowed to running state
Upgrade Notes
Update session lifecycle value from 'creationFailed' to 'failed'. Update error handling to remove 'ContentNotFound' and 'error' from changesets. Replace session-level forking with chat forking.
The Two Releases
v2.6.1
v2.6.1
Aug 28, 2026· 2 months ago
Implemented a unified chat templating system using real GGUF templates and retired the legacy server.
Full release notesclients/go/v0.9.0
Go module v0.9.0
Aug 28, 2026· 2 months ago
Major version bump implementing AHP 0.9.0, introducing automation channels, durable turn errors, and renaming session lifecycle states.
Full release notes