New releases from KDE

KDE: the community that creates all this wonderful software, from the plasma desktop to the Krita painting application, from the Frameworks libraries to the Tupi animation application. And tons more.

Plasma: the desktop, with window manager, panel, widgets, krunner and so on.

KDE Frameworks 5: a bunch of libraries that make the life of a developer easier. (And, of course, you can use the frameworks to write an application that runs anywhere, from Android to OSX, from Linux to Windows, irregardless of the desktop.)

Krita, Kexi, KMail, Akregator, KDevelop, Skrooge, Amarok, Kdenlive, Tupi, GCompris, Kolf and so on and so forth: a host of applications that are developed on the KDE community infrastructure and adhere to the KDE manifesto: https://manifesto.kde.org/. (And, of course, most of these application run anywhere, from Linux to Windows, from OSX to FreeBSD, irregardless of the desktop environment.)

As for numbering, usually, the major number corresponds to the version of Qt used, except for an application like Krita, which is a bit behind, so 1.x == Qt3, 2.x == Qt4, 3.x == Qt5.