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

## Remove Deleted Files From History

**Remove Deleted Files From History** (`CmdRemoveDeletedFilesFromHistory`, command palette) removes files that no longer exist on disk from the list of recently opened files.

## Reuse instance respects virtual desktops

With `ReuseInstance`, opening a file uses a SumatraPDF window on the current virtual desktop, or opens a new window there, instead of switching to another desktop ([#5630](https://github.com/sumatrapdfreader/sumatrapdf/issues/5630)).

## Literal % in external viewer command lines

In `ExternalViewers` command lines, `%%` stands for a literal `%`, e.g. `%%d` is passed to the program as `%d` ([#5583](https://github.com/sumatrapdfreader/sumatrapdf/issues/5583)).

More: [changes from June 13, 2026](https://www.sumatrapdfreader.org/docs/Changelog-2026-06-13) and the [full changelog](https://www.sumatrapdfreader.org/docs/Changelog).