9to5Linux Weekly Roundup for April 19th, 2026, brings news about KDE Gear 26.04, Archinstall 4.2, GNOME 50.1, Scribus 1.6.6, Zorin OS 18.1, GIMP 3.2.4, Solus 4.9, OpenSSL 4.0, Raspberry Pi OS 2026-04-13, Mir 2.26, COSMIC 1.0.10, new XOrg Server and Xwayland security releases, Proton 11 beta, Shelly 2.1, and more.