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|Details of the changes in the Ubuntu base, including kernel, toolchain and build options can be found in the main Ubuntu Release Notes.||Details of the changes in the Ubuntu base, including kernel, toolchain and build options can be found in the main [[https://discourse.ubuntu.com/t/hirsute-hippo-release-notes/19221|Ubuntu Release Notes]].|
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|Download a [[http://cdimage.ubuntu.com/kubuntu/releases/20.04/release/|Bootable image]]. Direct downloads, torrents, and zysnc are available as options.||Download a [[http://cdimage.ubuntu.com/kubuntu/releases/21.04/release/|Bootable image]]. Direct downloads, torrents, and zysnc are available as options.|
These release notes for Kubuntu 21.04 (Hirsute Hippo) provide an overview of the release and document the known issues.
Details of the changes in the Ubuntu base, including kernel, toolchain and build options can be found in the main Ubuntu Release Notes.
Kubuntu 21.04 will be supported for 9 Months.
Getting Kubuntu 21.04
Upgrading from 20.10
Detailed upgrade instructions can be found here: Upgrade Kubuntu 20.10 to 21.04
There may a delay of a few hrs to days between the official release announcements and the Ubuntu Release Team enabling upgrades.
Download a Disk Image
Download a Bootable image. Direct downloads, torrents, and zysnc are available as options.
New features and changes in 21.04
Core desktop and applications
Plasma 5.21: simple by default, powerful when needed
Plasma 5, the latest generation of KDE's desktop has been developed to make it smoother to use while retaining the familiar setup. The Plasma 5.21 series is the default in this version of Kubuntu.
Plasma 5.21 has been developed to make it smoother to use while retaining the familiar setup. Kubuntu beta ships the 4th scheduled bugfix release of 5.21 (5.21.4).
KDE Apps updates, including 20.12.3 release service and other updated apps
Web browser and office suite
Kubuntu 21.04 ships with Qt 5.15.2
Other new and updated applications
- Krita is updated to 4.4.3
- Kdevelop is updated to 5.6.2
kio-fuse is installable from the repositories, but cannot yet be included on the ISO due to Bug: 1916390
Plasma Wayland session
- A Plasma Wayland session is installed, but is not the default. A Wayland session can be started by selecting it at the login screen.
Installer and live session
(1681144) Clicking on URLs in Kubuntu Installer Slideshow does nothing
(1681830) Ubiquity installer - No Label shown for where to enter LVM Encryption Passwords fields
(1706859) Auto-selected keyboard layout no longer matches chosen region on "Where are you" page
ZFS on root installer support
This was not implemented for the KDE front-end to the Ubiquity installer.
(1442512) Apport-kde crash when reporting bugs