* Add stroke width to polygon tool toolbar
* Add latex support for markdown ([#725](https://github.com/LinwoodDev/Butterfly/issues/725))
* Add ignore pressure setting to fix pressure values on some devices
* Save files in different thread ([#883](https://github.com/LinwoodDev/Butterfly/issues/883))
* Fix delete key not working in markdown mode
* Fix export to multipage PDF leads to empty pages except the current one ([#878](https://github.com/LinwoodDev/Butterfly/issues/878))
* Fix undo/redo not working correctly and freezing the app
* Big translation updates

Upstreamed from 2.3.3:
* Add support for arm AppImage builds
* Add more alternative linux builds
* Fix snap builds
* Fix laser fade animation not smoothly fading out ([#877](https://github.com/LinwoodDev/Butterfly/issues/877))

Read more here: https://linwood.dev/butterfly/2.4.0-beta.2