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

## Save and restore tab groups

You can save the current set of open tabs as a named group and restore it later with `Save Tab Group` (`CmdTabGroupSave`) and `Restore Tab Group` in the `Ctrl + k` command palette. Saved groups are stored in the `TabGroups` advanced setting ([#4402](https://github.com/sumatrapdfreader/sumatrapdf/issues/4402)).

![Four recipe tabs are saved as the tab group Baking with Save Tab Group from the command palette, Close All Tabs closes them, and Restore Tab Group lists Baking (4 tabs); Restore reopens all four tabs](https://youtu.be/robSAWLb4ys)

## Highlight matches in filtered Table of Contents

When you filter the Table of Contents / bookmarks tree, the matching text is highlighted in each entry.

![The bookmarks tree filtered by "ing", with the matching text highlighted](https://files.sumatrapdfreader.org/assets/sumatrapdf/changelog/img/toc-filter-highlight-b527.png)

More: [changes from April 3, 2026](https://www.sumatrapdfreader.org/docs/Changelog-2026-04-03) and the [full changelog](https://www.sumatrapdfreader.org/docs/Changelog).