KDE Plasma 5.1 sports a wide variety of improvements, leading to greater stability, better performance and new and improved features. Thanks to the feedback of the community, KDE developers were able to package a large number of fixes and enhancements into this release, among which more complete and higher quality artwork following the new-in-5.0 Breeze style, re-addition of popular features such as the Icon Tasks taskswitcher and improved stability and performance.

Those travelling regularly will enjoy better support for time zones in the panel's clock, while those staying at home a revamped clipboard manager, allowing you to easily get at your past clipboard's content. The Breeze widget style is now also available for Qt4-based applications, leading to greater consistency across applications. The work to support Wayland as display server for Plasma is still ongoing, with improved, but not complete support in 5.1. Changes throughout many default components improve accessibility for visually impaired users by adding support for screenreaders and improved keyboard navigation.

Aside from the visual improvements and the work on features, the focus of this release lies also on stability and performance improvements, with over 180 bugs resolved since 5.0 in the shell alone.