4.18.1 - Update copyright year - Use XfceScreensaver from Libxfce4ui (!33) - screensaver: Fall back on lock command if D-Bus call failed (#142, !24) - panel-plugin: Properly disconnect signal handler - build: Fix autotools warnings - Fix management of source ids - panel-plugin: Add missing ref on image - Fix blurriness in icons when UI scale factor > 1 (!30) - Translation Updates: Chinese (China), English (Canada), Greek, Korean, Turkish