Version 3.21.0-beta1

• Added a new command line switch, --player, that makes ACBR launch in "Media Player Mode". In this mode it only shows the Media Player, as if it was a stand alone application, without the Reader or other tools.

Version 3.20.0

• Added new parameters to the custom filters in the Reader, invert and rotate hue, and a new default filter, Invert, to use as a quick Dark Mode (resetting the filters to the default ones is needed for the new one to be available if version 3.19.0 was previously used).
• Added the changelog from GitHub to the info shown in the Check for Updates modal.
• Added the current track's name to the Media Player's top bar when the advanced controls are enabled and the playlist is hidden.
• Fixed the Reader's new pages cache manager making the app crash on Windows when changing files in some circumstances.
• Fixed the Metadata Editor failing to update a ComicInfo.xml's pages list when requested and never ending the operation.
• Fixed the Metadata Editor failing to update some PDF's entries if the new value in the input field is empty.

Version 3.19.0

• Improved, significantly, the average page loading time in the Reader by implementing a pages cache that is filled in the background. The cache size can be increased in the Preferences (Comic Book Reader > Pages Cache), so it can fit more pages if the user doesn't mind the extra RAM usage.
• Added the option to create new page filters for the Reader (go to View > Filter > Manage Filters, or to the Comic Book Reader section in the Preferences), that can be customized by setting values for gamma, white level, black level, brightness, contrast, sepia and saturation.
• Added a new advanced image operation, black level / white level, to the convert, create and extract comic books tools.
• Added a button, shortcut and menu entry to take a screenshot of a video in the Media Player while it's playing.
• Added a new Preferences option to set the System Monitor size in the Appearance section.
• Rebuilt one of the libraries' Linux binary so it requires glibc 2.35 instead of 2.38 to run it, making the non-flatpak Linux versions of ACBR now, hopefully, compatible with older Linux distros like Ubuntu 22.04.
• Made some changes to the conversion tools to try to avoid potential EBUSY errors on Windows.
• Updated some of the core libraries to newer versions.
• Fixed not being able to open the metadata in the comicinfo.xml of a CBR file.

Version 3.19.0-beta3

• Rebuilt one of the libraries' Linux binary so it requires glibc 2.35 instead of 2.38 to run it, making the non-flatpak Linux versions of ACBR now, hopefully, compatible with older Linux distros like Ubuntu 22.04.

Version 3.19.0-beta2

• Improved, significantly, the average page loading time in the Reader by implementing a pages cache that is filled in the background. The cache size can be increased in the Preferences (Comic Book Reader > Pages Cache), so it can fit more pages if the user doesn't mind the extra RAM usage.
• Added a button, shortcut and menu entry to take a screenshot of a video in the Media Player while it's playing.

Version 3.19.0-beta1

• Added the option to create new page filters for the Reader (go to View > Filter > Manage Filters, or to the Comic Book Reader section in the Preferences), that can be customized by setting values for gamma, white level, black level, brightness, contrast, sepia and saturation.
• Added a new advanced image operation, black level / white level, to the convert, create and extract comic books tools.
• Updated some of the core libraries to newer versions.
• Fixed not being able to open the metadata in the comicinfo.xml of a CBR file.

Version 3.18.0

• Overhauled the audio player and made it a media player. It now also plays video files (supports web-compatible codecs and formats like MP4 and WebM) and youtube URLs and shows subtitles from SRT files. If FFmpeg is installed and in the system's PATH, or its path is configured in the preferences, it will support many other containers and codecs (MKV, AVI, WMV, H.265...), multiple video and audio tracks and embedded subtitles.
• Added a section in the Preferences, Third-Party Executables, to configure the paths for optional executables like rar or ffmpeg.
• Added a new localization file, Japanese, contributed by coolvitto
• Added some improvements to the deletion and move operations to make them more resiliant against potential short external locks by OneDrive or similar external programs of the temporary files and folders created during conversions.
• Set a better default temp folder for the flatpak version.
• Fixed the flatpak version not finding the rar binary in the system's PATH (if available).

Version 3.18.0-beta1

• Overhauled the audio player and made it a media player. It now also plays video files (supports web-compatible formats like .mp4 and .webm) and youtube URLs and shows subtitles from SRT files. If FFmpeg is installed and in the system's PATH, or its path is configured in the preferences, it will support many other containers and codecs (.mkv, .avi, .wmv, h265...), multiple video and audio tracks and embedded subtitles.
• Added a section in the Preferences, Third-Party Executables, to configure the paths for optional executables like rar or ffmpeg.
• Fixed the flatpak version not finding the rar binary in the system's PATH (if available).
• Set a better default temp folder for the flatpak version.

Version 3.17.1

• Fixed creating a comic book from only images not working in the previous version.
• Fixed setting a non-writable folder as temp folder breaking the app.

Version 3.17.0

• Added support for reading, converting from and extracting EPUB, FB2 and MOBI ebooks (newer formats like KF8 (AZW3) are not compatible).
• Increased the performance reading and converting PDF and CBR files. Also, files of those types bigger than 2GB are now supported.
• Fixed a bug introduced in the previous version that made the app not launch for new users :( I forgot to test launching the app with no config files for that release and, as no one opened an issue about it in the meantime, I didn't notice until I did the test for this new one, sorry about that.