KStateMachine Visual Changelog

Unreleased

"Open in Online Editor" action — opens the current diagram in plantuml.com or mermaid.live, depending on the selected diagram format.

Support for IntelliJ Platform 2026.1 — its JCEF build lacks the resource-handler API that 2026.2 requires. 2026.1 users stay on 0.2.0, which the Marketplace keeps serving them.

Zoom support for the diagram view — scroll or pinch to zoom, diagram stays within the window bounds.
Support for autoTransition, autoTransitionOn, autoTransitionConditionally, autoDataTransition, and autoDataTransitionOn (UML eventless / "always" transitions).
Support for extended join-transition family: joinTransitionOn, joinTransitionConditionally, joinDataTransitionOn; join-source extraction for Set and builder-style calling forms.

Fixed initial diagram scaling when the tool window first opens.
Fixed diagram area not resizing correctly when the IDE window is resized.
Fixed a race condition where editing the current file and then switching tabs left the plugin showing stale machines, breaking caret-based tree navigation.
Fixed plugin getting stuck after a file is renamed.
Reduced flickering when switching between PlantUML and Mermaid diagram formats.
Fixed Mermaid visual rendering artifacts.
Fixed minor spacing layout issues in the diagram panel.