4.18.0

- build: Bump requirements for Xfce 4.18
- Adding wallpapers of Xfce4.18 wallpaper contest
- Adding wallpapers of Xfce4.18 wallpaper contest
- Translation Updates:
  German, Greek, Hungarian, Norwegian Bokmål, Occitan (post 1500),
  Russian, Serbian

4.19.0

- Fix warnings
- xfdesktop: dither backdrop gradients to reduce color banding
- Add preliminary Wayland support using libxfce4windowing
- Fix minor coding style issues
- Avoid drawing gradient to temporary surface
- backdrop: render gamma-correct gradients
- Fix a couple dangling mnemonic-widget properties
- Set all icon appearance settings insensitive when disabled
- Modernize GObject usage in XfdesktopThumbnailer
- Fix crash when request timer active after finalize
- Update my email address everywhere
- Move file icons settings to its own section
- Remove deprecated widgets from settings UI
- Update glade files to latest version
- Free cached GarconMenu in menu_cleanup()
- Remove unused show_delete_option var in menu.c
- Disconnect xfconf signal in menu_cleanup()
- Free cached GarconMenu when apps menu is disabled
- Load removable volume information asynchronously
- Fix apps menu not popping up when menu icons disabled
- Translation Updates:
  Albanian, Amharic, Arabic, Armenian (Armenia), Asturian, Azerbaijani,
  Basque, Belarusian, Belarusian (Tarask), Bulgarian, Catalan, Chinese
  (China), Chinese (Hong Kong), Chinese (Taiwan), Croatian, Czech,
  Danish, Dutch, Eastern Armenian, English (Australia), English
  (Canada), English (United Kingdom), Estonian, Finnish, French,
  Galician, Georgian, German, Greek, Hebrew, Hungarian, Icelandic,
  Indonesian, Interlingue, Italian, Japanese, Kazakh, Korean,
  Lithuanian, Malay, Norwegian Bokmål, Norwegian Nynorsk, Occitan
  (post 1500), Persian (Iran), Polish, Portuguese, Portuguese (Brazil),
  Romanian, Russian, Serbian, Slovak, Slovenian, Spanish, Swedish,
  Thai, Ukrainian, Uyghur, Uzbek

4.18.1

- Load removable volume information asynchronously
- Fix apps menu not popping up when menu icons disabled
- Translation Updates:
  Albanian, Amharic, Arabic, Armenian (Armenia), Asturian, Azerbaijani,
  Basque, Belarusian, Belarusian (Tarask), Bulgarian, Catalan, Chinese
  (China), Chinese (Hong Kong), Chinese (Taiwan), Croatian, Czech,
  Danish, Dutch, Eastern Armenian, English (Australia), English
  (Canada), English (United Kingdom), Estonian, Finnish, French,
  Galician, Georgian, German, Greek, Hebrew, Hungarian, Icelandic,
  Indonesian, Interlingue, Italian, Kazakh, Korean, Lithuanian, Malay,
  Norwegian Bokmål, Norwegian Nynorsk, Occitan (post 1500), Persian
  (Iran), Polish, Portuguese, Portuguese (Brazil), Romanian, Russian,
  Serbian, Slovak, Slovenian, Spanish, Swedish, Thai, Ukrainian,
  Uyghur, Uzbek

4.19.1

- Fix configure configuration summary
- Use new XDT_CHECK_OPTIONAL_FEATURE & XDT_CHECK_PACKAGE_BINARY
- autogen.sh: fix xfce4-dev-tools dependency version
- Clean up autogenerated source file build rules
- Generate final settings .desktop file in one pass
- Drop dependency on xdt-csource and use glib-compile-resources
- Fix substitution of GETTEXT_PACKAGE for automake
- build: Drop intltool dependency
- main: Fix control (always) reach end of non void function
- Load icons in icon view a symbolic/theme-aware manner
- Set default debug based on git/not-git
- Missed a xfdesktop_version -> xdt_version in configure.ac
- Eliminate need for pre-processed configure.ac.in
- Remove unused file icon rendering code
- Draw cut file icons as insensitive
- Don't make icon translucent when window not focused
- Allow opening multiple selected folder icons from context menu
- Restore old behavior of allowing thumbnails to be wider
- Ditch GtkCellLayout impl for XfdesktopIconView
- Support for cascading custom actions (#221)
- Ensure workarea is updated when UI scale factor changes
- Set background color for icon labels in fallback theme
- More/better menu/windowlist cleanup on exit
- Place new files in the location they were dropped
- Pop up window action menu on windowlist item right click
- Simplify/improve right-click menu population
- Move some of icon item state management to model
- Use GIcon throughout the icon view
- Make the icon view not know about workarea
- Underline icon text when prelit in single-click mode
- Allow pasting window titles via DnD
- Harmonize constants in code & UI definition
- Properly thread UI scale factor to file icon loading functions
- DRY up the icon models with a base class
- DRY up the cursor movement code a bit
- Don't use weird pointer values as a tombstone
- Make tooltip fetching/showing simpler, and cache surfaces
- Move pixbuf cache to XfdesktopIconView
- Make XfdesktopIcon::activated not a signal
- Remove unneeded XfdesktopIcon functionality
- Remove XfdesktopWindowIcon
- Refactor icon view widget
- Fix/augment heuristic for determining settings window on Wayland
- Translation Updates:
  Albanian, Amharic, Arabic, Armenian (Armenia), Asturian, Azerbaijani,
  Basque, Belarusian, Belarusian (Tarask), Bulgarian, Catalan, Chinese
  (China), Chinese (Hong Kong), Chinese (Taiwan), Croatian, Czech,
  Danish, Dutch, Eastern Armenian, English (Australia), English
  (Canada), English (United Kingdom), Estonian, Finnish, French,
  Galician, Georgian, German, Greek, Hebrew, Hungarian, Icelandic,
  Indonesian, Interlingue, Italian, Japanese, Kazakh, Korean,
  Lithuanian, Malay, Norwegian Bokmål, Norwegian Nynorsk, Occitan
  (post 1500), Persian (Iran), Polish, Portuguese, Portuguese (Brazil),
  Romanian, Russian, Serbian, Slovak, Slovenian, Spanish, Swedish,
  Thai, Ukrainian, Uyghur, Uzbek

4.19.2

- Fix critical warning when disabling window icons
- Update for new libxfce4windowing workspace API
- Fix issue with XfceDesktop->workspace_manager NULL on realize
- Don't react to GdkScreen::monitors-changed if no monitors
- Update for `xfw_window_x11_get_xid()` in `libxfce4windowing-4.19.3`
- Fix crash when primary monitor is not set
- Avoid showing non-removable drives/volumes on the desktop
- Add CI builds for --disable-x11 and --disable-wayland
- ifdef out unusued code in settings dialog when X11 is disabled
- Fix build when X11 support disabled
- Make DEFAULT_BACKDROP configurable at build time
- Close rc file under sanity check
- I18n: Update po/LINGUAS list
- I18n: Update po/LINGUAS list
- I18n: Update po/LINGUAS list
- Fix desktop window positioning on multi-monitor Wayland
- Remove inaccurate comment
- Pass event button on menu popup when it's a release event as well
- Fix spacing/layout in new settings tab for consistency
- Move File/Launcher icons settings to a separate tab
- Add pref for label underline when in single click mode
- Translation Updates:
  Albanian, Amharic, Arabic, Armenian (Armenia), Asturian, Azerbaijani,
  Basque, Belarusian, Belarusian (Tarask), Bulgarian, Catalan, Chinese
  (China), Chinese (Hong Kong), Chinese (Taiwan), Croatian, Czech,
  Danish, Dutch, Eastern Armenian, English (Australia), English
  (Canada), English (United Kingdom), Estonian, Finnish, French,
  Galician, Georgian, German, Greek, Hebrew, Hungarian, Icelandic,
  Indonesian, Interlingue, Italian, Japanese, Kazakh, Korean,
  Lithuanian, Malay, Norwegian Bokmål, Norwegian Nynorsk, Occitan
  (post 1500), Persian (Iran), Polish, Portuguese, Portuguese (Brazil),
  Romanian, Russian, Serbian, Slovak, Slovenian, Spanish, Swedish,
  Thai, Ukrainian, Uyghur, Uzbek