This is the stable release candidate intended to replace 3.16 on github releases.

Highlights Since RC1

• Keyboard scrolling in thumb view by @spaghetti22
• Updated translations, new Simplified Chinese by @sr79368142
• Color management added (select a display profile in Settings/Display) by @scrubbbbs
• Force-delete dialog added
• Preserve image color profile when editing/saving
• Support CMYK pixel format (converted to sRGB on open)
• Fix delete/sync recents bug
• Fix always-zoom-to-fit issues with keep zoom
• Fix 90-degree rotation and EXIF rotation bugs
• Fix rating bugs
• Fix possible unintended overwrite on save
• Fix saving alpha channel on animations
• Swipe animation working again and improved
• AppImage added to CI

Full Changelog: 3.22.0-rc.1...3.22.0-rc.2

Security Scan:
https://www.virustotal.com/gui/file/077ab41ac1ad674b82cc6c705fbd7e9bf0c35a3ba420864a0c2418407017c176
https://www.virustotal.com/gui/file/d168ad77b4293877b20a9847895e8d495e141a1f4d140746eb26d594b66ed712

• Qt6 is required to build nomacs
• Keyboard Shortcuts: Fixes dock input stealing, most shortcut conflicts, broken crop and plugin shortcuts. Fixes shortcut activation when menu bar is hidden.
• Quick-Launch: Adds plugins.
• macOS: Fixes RAW loader segfault, file types registration, packaging issues. Adds kimageformat-plugins.
• Theme: Adds option to disable UI animations. Smoother animation between mode changes. Fixes print dialog, warning text color, progress bar size/color. Custom colors now work for checkboxes, close box.
• Thumbnails: Uses a lot less memory and CPU.
• Plugins: Fixes failure to find plugins and/or duplicate plugins on certain configurations.
• Pseudocolor Mode: Fixes regression that prevented it from working.
• Star Rating: Fixes many bugs, ratings/comments work properly as long as image already has EXIF data.
• Image Loader: Support mirrored orientation, more reliable orientation handling.
• Display: Support HiDPI displays. Scale images and icons correctly with respect to the display DPI.
• Refactoring: Fixes most warnings. Adds clang-tidy tooling and fixes, cmake auto-formatting, some C++11 modernization. Cleanup includes, shorten max line length.

Security scan:

https://www.virustotal.com/gui/file/b5b8f432f8792f86eb7bb5ceec8ac5c2c5f603b513cc888b9cd87cb28a5d924f

https://www.virustotal.com/gui/file/0cdeed79841f0d3d4b30931fc01796aa83f5ab7cd944e6c88b7fbc87b3e8401c

• Windows build is able to open AVCI images
• HEJ2 images can be saved by nomacs
• --list-formats command line option to get list of supported file extensions and/or mime types.
• Bug fixes
• Updates to the bundled libraries in Windows build
• MacOS intel binaries

nomacs-3.21.1-win7.zip is a portable version capable of running on very old Windows7 system. Uses libraries from crystalidea/qt6windows7 project. Note: This version may not run on fresh Windows7 install, updates like windows6.1-kb4474419 and windows6.1-kb4490628 are recommended.

Security scan:

https://www.virustotal.com/gui/file/b1bedcf7e3265dd9d4a158ba16c909a9a940397fcceeaae936fdb15932041a6f

https://www.virustotal.com/gui/file/6a3ecda7516f4c8a5ef52a3ae4b2e355072a0d2003567e233dccaddaeffa76fc

https://www.virustotal.com/gui/file/713f93576948c6d8c3ad59de286d313c86a60cba8d478a47156885508aa1b09d

• Refactored thumbnail and general image loader
• Support for mirrored orientation
• Light and Dark Themes
• Various bug fixes, code clean-ups and minor refactoring

Improved image formats support in Windows build:
JPEG 2000 (enabled again), DDS, JPEG XR (JXR),
CMYK support for JPEG XL.
Minor updates to AVIF plug-in (better Qt 6.8 support, upgraded libaom encoder, upgraded dav1d decoder).

Windows version was build using Qt 6.8.1
Qt 6.8 doesn’t officially supports old Windows like Windows 7. However, thanks to the project https://github.com/crystalidea/qt6windows7/ we are able to provide special portable version nomacs-3.21.0-win7.zip which is able to run on old 64-bit Windows 7.

Security scan:

https://www.virustotal.com/gui/file/65175a507ec393c305e7621e269954c6b6435d30ea7d45f4f82884bc75544180

https://www.virustotal.com/gui/file/4609b8f5e5038943f28d6b32c11455dc6c4b783b5183aafc132fca7ed3657b2d

https://www.virustotal.com/gui/file/6a0ff7ad5c6b8b82eade84f241160559abc15d536913a0af84126061e6f661e7

Release for testing purposes.

Security scan:

https://www.virustotal.com/gui/file/e00e40d9c3546523427e5e695f7120b440b0ef8165ab4b7a78e2c2dc543f6450

https://www.virustotal.com/gui/file/adfce1b36037d833492e842fee3fe1b92201757fe05525a7c6a210ab792c5404

Windows build uses Qt 6.7.1 (requires at least Windows 10)

On Linux, when both Qt5 and Qt6 are installed, you can use -DQT_VERSION_MAJOR=6 to use Qt6 libraries or -DQT_VERSION_MAJOR=5 to use older Qt5.

This release is for testing purposes.

Security scan:

https://www.virustotal.com/gui/file/eca7640530f8c1f3be08e2d001d3f5c5ae9e2ccd5f6348d44cf0d05b2a7c355e

https://www.virustotal.com/gui/file/ef2b46cdd526703dedf9c67b9f3fb06b765e3158ac86f643cba6287457e6a641

New Windows build with updated AVIF and JPEG XL plugins.

Security scan:

https://www.virustotal.com/gui/file/a29793962e9c70c118bfd44078fab4d5963f7ac159153cfc562f276fdd16e21c/detection

https://www.virustotal.com/gui/file/ae0b10f08f3928ffc7f8c7bea39c9c60d03f86500ab2d0d669b3503ba90d7398/detection

This update should resolve CVE-2023-4863 (Heap buffer overflow in libwebp) in Windows build.

Security scan:

https://www.virustotal.com/gui/file/94e5c318099e19a0519bdf6d2bc0792ea6a5dd2ed0923c06dc555f65f0cf0c78

https://www.virustotal.com/gui/file/2b26a8a504de4c31044ca741db48b1e7586627d0c3504f1af237149c0c554d4b

• Option to close nomacs with middle mouse button (if enabled in settings)
• QOI (Quite OK Image Format) support (enabled in Windows build, needs kimageformats 5.110 on Linux)
• Possibility to build nomacs with Exiv2 0.28.0

Antivirus scans:

https://www.virustotal.com/gui/file/8886cd8f1ff497074cd7c0d9bc7e45a7a3d8a198e822f24ccc3ee1373f179fbc

https://www.virustotal.com/gui/file/32a28b3b41df23689634887379de2b32fd4be88150045783ac85f417dedcbc7a

• Remove implicit auto-save.
• Revert crop functionality.
• Bundled JPEG XL plugin (Windows build only)
• Updated AVIF plugin (Windows build only)