Version 4.5.2

Released: September 24th, 2026

This release fixes a transition evaluation bug that could leave unmatched message events queued after a fallback ran, causing the same state to loop indefinitely.

Bug Fixes

Fallback event handling

When a state checks event-based transitions before condition-based transitions, unmatched human message events are now only preserved while there are more event-based transitions left to evaluate. This prevents condition-only paths from re-queueing the same event after the fallback body executes and avoids an infinite loop in mixed transition configurations.