New in the SumatraPDF [pre-release builds](https://www.sumatrapdfreader.org/prerelease):

## Keyboard navigation in custom menu bar

In the custom menu bar (shown when tabs are in the title bar), arrow keys move between menus, like a standard Windows menu bar.

## Faster, smoother fullscreen

Going into and out of fullscreen is faster and flickers less. Switching tabs also causes less repainting.

More: [changes from March 31, 2026](https://www.sumatrapdfreader.org/docs/Changelog-2026-03-31) and the [full changelog](https://www.sumatrapdfreader.org/docs/Changelog).