New features and fixes from Excalidraw.com:

The right-click context menu is now scrollable on smaller screens (#4030, #5520)
Holding down the shift key while rotating an object will rotate it at discrete angles. Rotation is continuous without the SHIFT key. (#5500)
Improved cursor alignment when resizing an element proportionally (maintain aspect ratio) by holding SHIFT during resizing. (#5513)
Improved freedraw performance during editing (now has proper canvas caching), and no more blurry freedraw shapes when exporting on a higher scale. (#5481)
Sidebar stencil library now correctly scrolls vertically (#5459)

New in Obsidian:

Fullscreen mode on iPad. When there are multiple work panes open, clicking the fullscreen action in the Excalidraw Obsidian menu will hide the other work panes and make Excalidraw fullscreen.

Drag&Drop an image from a web browser into Excalidraw (#697)
On Obsidian Mobile 1.3.0, when the drawing included an embedded image, switching from markdown-view to Excalidraw-view caused the drawing to disappear (it had to be recovered from backup or synchronization history). (#715)
When working on a mobile device (tablet and phone) and using two work panes (one for drawing and the other for editing a markdown document) if you switched focus from the drawing to the markdown document auto-zoom changed the zoom level of the drawing. (#723), (#705)
Actions on the Command Palette to create a new drawing in a new pane or reusing an existing adjacent pane; on the main workspace or in the Hover Editor or Popout window, were not working well. See related settings in plugin settings under "Links and transclusions" (#718)
There was a problem with links with section references when the header contained space characters (#704)
I added additional controls to avoid the fantom warnings about a problem with saving the Excalidraw file. Hopefully, from now on, you'll see this error less frequently (#701)