Just a patch release this month, since all changes were bugfixes. Still, there's a bunch of them, so it probably pays to upgrade.
You can look at the new patches or download the zip file.
Better handling of selections that cover the whole viewport in contentEditable-mode.
No longer accidentally scroll the editor into view when calling
Work around Chrome Android bug when converting screen coordinates to editor positions.
Make sure long-clicking a selection sets a cursor and doesn't show the editor losing focus.
Fix issue where pointer events were incorrectly disabled on Chrome's overlay scrollbars.
shell mode: Handle nested braces.
markdown mode: Make parsing of strong/em delimiters CommonMark-compliant.