Beta 14 is out on TestFlight now, and the direct download follows shortly.
Typing keeps up in large vaults. In a vault with thousands of notes, typing could fall behind, especially with Vaults & Folders open in the sidebar. It now keeps up in every note, in Rich and in Source.
Page themes color the whole window. Pick a page like Sepia, Solarized or True Black in Settings → Editor, and the sidebar, note list and toolbar follow it.
Very large tables open safely. A table with more than 500 rows opens folded as its source instead of stalling the note.
Automatic citekeys work for any title. Leave Citekey blank when you add a source by hand, and Header makes one you can cite, even for accented titles: École becomes ecole.
If something feels off, reply here or use Help → Report Issue in Header.