Third release candidate of Butterfly 2.5.1 released

Apr 23, 2026

Linwood Butterfly

🎨 Powerful, minimalistic, cross-platform, opensource note-taking app

CodeDoctor

The third release candidate for Butterfly 2.5.1 is now available. This release focuses heavily on bug fixes, general performance improvements, and enhancing overall app stability.

Please note that this is a release candidate and may contain bugs. If you find a bug, please report it on GitHub.

Performance and rendering improvements

Significant optimizations were introduced to ensure smoother operation. Using MediaQuery.XOf(context) over MediaQuery.of(context).X gives a nice performance boost across the app. Rendering of partial content during panning or heavy scrolling, particularly with PDFs, has been fixed and optimized to prevent crashes and viewports not baking correctly.

Full changelog

Improve thumbnail cropping logic to better fit the viewport
Fix ghost pages creation when reordering current page
Fix number field text changes while inputting text
Fix bounds calculation when using areas and enabling positive coordinates
Only trigger bake when viewport size differs (fix always-bake bug)
Refactor MediaQuery.of(context).X usage to MediaQuery.XOf(context) for performance
Fix app crashes during heavy scrolling by optimizing PDF rendering lifecycle
Fix partial content rendering issues after panning by ensuring viewports bake correctly
Fix incorrect default values across settings pages and sliders to properly match their underlying models (e.g. delayed autosave, pen properties, fill alphas, and shape scales)