v0.50.1 v2.6.0
high risk
tulir/whatsmeowAug 24, 2026 → Aug 27, 20262 days between releases
What's New
Consolidated certification pipeline and removed legacy engines in major version jump
Breaking Changes
- Removed engine/huggingface.rs
- Removed engine/mlx.rs
- Removed engine/universal.rs
- Removed rustchain_compat.rs and related documentation
New Features
- Consolidated certification into a 3-box regimen (MATH, INFERENCE, DETERMINISM)
- Added certification for new models: llama-3.1-8b, qwen2-7b, and gemma-2-2b
Improvements
- Removed legacy engine code (~1,600 lines deleted)
- Simplified CI/CD pipelines
Upgrade Notes
Remove references to removed legacy engines (huggingface.rs, mlx.rs, universal.rs) and rustchain_compat.rs from your configuration. Update model configurations to align with the new 3-box certification regimen (MATH, INFERENCE, DETERMINISM).
The Two Releases
v0.50.1
v0.50.1
Aug 24, 2026· 2 months ago
Fixes observability blind spots by adding metrics for trunk-gate rejections and correcting endpoint labels for several admin endpoints.
Full release notesv2.6.0
Shimmy v2.6.0
Aug 27, 2026· 2 months ago
Consolidated the certification pipeline into a clean 3-box regimen and removed legacy engine code.
Full release notes