What changed in koreader from 2025 to 2026

3 releases numbered after v2025.10 up to and including v2026.07.1, stable releases only. v2025.10 and v2026.07.1 are the newest stable releases of 2025 and 2026 we track; this page follows them as new ones ship.

47 changes across 3 releases

Added 21

v2026.07

  • Background cleanup for PDFs with Mask and SMask to remove backgrounds without preprocessing
  • Support for Kobo v5 devices
  • Improved support for PocketBook Era Lite, reMarkable Paper Pure, newer Onyx Android devices, and some Kindle models
  • Single-key shortcuts support in the hotkeys plugin
  • Built-in support to delete plugins
  • Cloud storage plugin with uploading, downloading, and deleting selected files, configurable servers and upload folders, natural sorting, and improved WebDAV handling
  • OPDS 2.0 basic support
  • Option to justify text in footnote popup
  • Capability to search within dictionary definitions in HtmlBoxWidget and DictQuickLookup
  • Default book source option in bookmark browser
  • Support for ::first-line CSS pseudo element
  • COLRv0 color font rendering support
  • Support for float/clear CSS properties with inline-start/inline-end values
  • Highlight export filters
  • Alternative mime type for fb2 format

v2026.03

  • Stable pages in file browser
  • Gestures and profiles allow disabling popup messages
  • Remarkable support refresh levels
  • Add Japanese reader.dict monolingual dictionary
  • Pinned page exact location
  • Status bar External content item
Changed 9

v2026.07.1

  • Support tolino firmware version 5.18 and later

v2026.07

  • SyncService replaced by new Cloud storage plugin
  • Improved Chinese encoding handling in CHM files
  • Fixed background color propagation among inlines in renderFinalBlock()

v2026.03

  • Upgrade desktop platform from SDL2 to SDL3
  • Exporter uses number of stable pages
  • Remarkable full refresh enabled by default for appload-based setup
  • Exporter enhanced title and author parsing from MyClippings
  • RenderImage improve JPEG handling
Fixed 17

v2026.07.1

  • Fix OPDS 2.0 http header
  • Maintain scroll offset for a kept open, multi-page QuickMenu
  • Keep attribute values that are not ASCII in luxl
  • Fix author in OPDS 2.0
  • Skip archive directory in recursive scan for Wallabag

v2026.07

  • End of Document status change in ReaderStatus
  • Cover image rotation to only update when rotate image is enabled
  • Kindle warmth settings to not break incremental settings when setting absolute warmth

v2026.03

  • Fix two bugs with statusbar presets
  • NewsDownloader removes multiple unwanted selectors
  • Screensaver skips showing without UI instance
  • Status bar fixed loading preset on empty items
  • Calibre does not use stale list
  • Fix crash on Kindle when both AutoSuspend and KeepAlive are on
  • Fix Kindle crash on AutoSuspend while charging
  • Android fix possible run target error
  • Exporter correct MyClipping page value parsing

Original release notes, newest first

The list above is our reading of these notes; the originals from koreader are here, one fold per release.

v2026.07.1KOReader 2026.07.1

Minor bug fixes, mainly for some virtual artifacts in rounded corners (#15753).

What's Changed
New Contributors

Full Changelog: https://github.com/koreader/koreader/compare/v2026.07...v2026.07.1

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v2026.07KOReader 2026.07 "Sailing Walrus"

It's been about four months since the previous release, so it's about time, isn't it? One very interesting addition is background cleanup for PDFs with Mask and SMask, which is technobabble for backgrounds (particularly in Archive.org PDFs, https://github.com/koreader/koreader/pull/15401). It means you might not need preprocessing to be able to open them on your ereader without having to be fairly patient when turning pages, though the usual warnings apply: backgrounds are not just the yellowish color of paper, but they might also contain most of the non-textual content, if any.

Kobo v5 support was finally merged (https://github.com/koreader/koreader/pull/12401), and will also reach the nightly builds server soon. There's also new or improved support for the PocketBook Era Lite, reMarkable Paper Pure, newer Onyx Android devices, and some Kindle models.

The hotkeys plugin now supports single-key shortcuts (https://github.com/koreader/koreader/pull/14867), and speaking of plugins, there is now built-in support to delete them (https://github.com/koreader/koreader/pull/15240).

SyncService is replaced by the new Cloud storage plugin (https://github.com/koreader/koreader/pull/15210). It supports uploading, downloading, and deleting selected files, configurable servers and upload folders, natural sorting, and improved WebDAV handling.

And last but not least, there's now OPDS 2.0 basic support (https://github.com/koreader/koreader/pull/15696).

This month's logo was contributed by @thunder_clud.

We'd like to thank all contributors for their efforts. Some highlights since the previous release include:

New Contributors

Full Changelog: https://github.com/koreader/koreader/compare/v2026.03...v2026.07 — closed milestone issues

Installation instructions: Android • Cervantes • ChromeOS • Kindle • Kobo • PocketBook • ReMarkable • Desktop Linux • MacOS

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v2026.03KOReader 2026.03 "Snowflake"

koreader-2026-02-snowflake

There's a pretty big update on desktop this time around. We've upgraded from SDL2 to SDL3 (#14983). This should mean everything works the same or better, but let us know if we missed some edge case. For the nearby future it does have the side effect of always shipping along SDL3, even in the DEB packages, because only recent distros provide it out of the box.

There are many other improvements, like stable pages in file browser (https://github.com/koreader/koreader/pull/14570). I won't bore you with more nonsense (read: there were some holdups with the release and my mental overview was lost), and I'll just let the PRs speak for themselves.

This month's logo was contributed by @Sonnenfee

We'd like to thank all contributors for their efforts. Some highlights since the previous release include:

New Contributors

Full Changelog: https://github.com/koreader/koreader/compare/v2025.10...v2026.03 — closed milestone issues

Installation instructions: Android • Cervantes • ChromeOS • Kindle • Kobo • PocketBook • ReMarkable • Desktop Linux • MacOS

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