Added

• Wayland: Global shortcuts are now registered using Portal if available.
• Black theme (#3142). Thanks to @FadeMind.
• Adds attributes for controlling the dialog window created via dialog()
  (#2947): .onTop makes the dialog stay on top of other windows, .modal
  makes the dialog modal (blocks interaction with other windows in the
  application until closed).
• Adds support showing icon font symbol in notes using
  application/x-copyq-item-icon format.
• Adds support for setting colors in theme files by name. For example:
  edit_bg=white.

Changed

• Temporary tabs that are not stored on disk will now not expire if
  configuration changes
• Pinned and locked items will not be dropped if tab size (maximum item count)
  changes
• The app now propagates exit code properly if it is aborted or receives a
  Unix signal (SIGINT, SIGTERM).
• Support for Qt older than 5.15 has been dropped.
• The build now uses Qt 6 by default. Use cmake -DWITH_QT6=OFF ... to build
  the app for Qt 5.
• Windows: The application will be now hidden from screenshots and screen
  recordings by default (#3165). This can be disabled using option “Hide from
  screenshots and recordings”.
• Logs are now stored in multiple files based on the process and the log
  records have a slightly different format (start with timestamp).

Fixes

• Drops unsafe sanitizing QTextDocument fonts (#3156). Qt 6 should handle any
  rich texts safely now.
• Logging now does not use lock files and avoids crashes if the application
  loop was not yet started.
• Avoids resetting properties of a tab if it is renamed.
• Fixes setting color for item counter
• Fixes editing and providing UTF-8 text by default
• Fixes updating item preview if when window is shown.
• Fixes changing synchronization directory for a tab.
• Fixes possible crash if calling a function with unexpected function argument.
• Fixes background of the command line in some themes in FakeVim plugin.
• Fixes renaming tabs with item storing disabled.
• Avoids collapsing tab in the tab tree after it is moved.
• Fixes item counter value after moving the tab in the tab tree.
• Fixes moving tab group with items in the tab tree.
• Linux: Fixes storing the first clipboard change after starting the app and
  modifying configuration.
• Linux: Avoids exiting on commit data request from the session manager