Shipping with the KDE Plasma 5.12.4 LTS desktop environment by default, accompanied by the KDE Applications 17.12.3 and KDE Frameworks 5.44.0 software suites, the Kubuntu 18.04 LTS (Bionic Beaver) release is powered by the Linux 4.15 kernel and will be supported for three years with security and software updates, until April 2021. Prominent new features of the Kubuntu 18.04 LTS release include a dark Breeze KDE Plasma theme by default, though all desktop apps are still using the light Breeze theme, mouse double-clicking is now used by default for opening files, and the integrated Baloo desktop search and file indexer was changed to basic indexing only.