SumatraPDF new features: March 31, 2026

New in the SumatraPDF pre-release builds: 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 and the full changelog.