Features
- feat(models): add gpt-5.4 and gpt-5.4-pro model definitions (#3424)
Improvements
- improvement(snapshot): exclude sentinel in client side activation detection (#3432)
Bug Fixes
- fix(condition): execution with subflow sentinels follow-on, snapshot highlighting, duplicate terminal logs (#3429)
- fix(kbs): legacy subblock id migration + CI check (#3425)