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

## Password-protected comic books

Password-protected CBZ / CBR files can be opened ([#95](https://github.com/sumatrapdfreader/sumatrapdf/issues/95)). The password dialog has a **Show password** checkbox.

![The password dialog for an encrypted CBZ file, with Show password checked](https://files.sumatrapdfreader.org/assets/sumatrapdf/changelog/img/comic-book-password-2917.png)

## Tips on the home page

The home page shows a random tip with clickable links and keyboard shortcuts. Click the tip to see another one. Turn tips off with the `ShowTips` setting ([#5515](https://github.com/sumatrapdfreader/sumatrapdf/issues/5515)).

![A tip at the bottom of the home page, with a link to the command palette](https://files.sumatrapdfreader.org/assets/sumatrapdf/changelog/img/home-page-tip-ce3b.png)

## Manga mode and outline for all formats

**Toggle Manga Mode** works for PDF and other document types, not only comic books ([#5498](https://github.com/sumatrapdfreader/sumatrapdf/issues/5498)). **Show Document Bookmarks** (previously Show PDF Outline) works for every format that has a table of contents.

## Smaller behavior changes

- `ZoomIncrement` can be as small as 1 ([#4931](https://github.com/sumatrapdfreader/sumatrapdf/issues/4931)).
- Downloaded files are no longer marked as coming from the internet when opened, so Windows shows their previews.

More: [changes from April 8, 2026](https://www.sumatrapdfreader.org/docs/Changelog-2026-04-08) and the [full changelog](https://www.sumatrapdfreader.org/docs/Changelog).