4.21.0 - Replace deprecated exo with libxfce4ui 4.21.0 - Remove manual registration of resources - meson: Add missing file to EXTRA_DIST - Hide dash from list view when comment is empty - build: Automate copyright year management - meson: Check for headers - Fix potential dereference of NULL - Add support to Meson - Translation Updates: Albanian, Basque, Catalan, Danish, Greek, Hungarian, Romanian, Slovak