- From 3.21.3, Adapta includes neither pre-generated CSSs nor PNGs, so users/contributors should build them by their own in build sequence.
- Color-changer was added (see details in README.md).
- Cconcurrency-build option was added (see details in README.md).
- Experimental newer Gtk+ 3.x based XFce4-notifyd styling was added (But it did not work as I expected).
- Introduce "Eta" smaller Gtk+ 3.2x widget variant in Gtk+ 3.22.x and 3.20.x.
- Metacity 3.22 integration.
- Openbox 3.6.1 integration (Thanks zecoj!!) and bundle compton.conf file.
- Introduce "Eta" smaller widget variants for Gnome-Shell theming.
- Cinnamon 3.2.x integration.