Linux Ubuntu 20.04 Focal Fossa, Xubuntu 20.04, Kubuntu 20.04 released


Well-Known Member
Sep 19, 2005

Ubuntu 20.04 LTS is based on the long-term supported Linux release series 5.4. Notable features and enhancements in 5.4 since 5.3 include:

  • Support for new hardware including Intel Comet Lake CPUs and initial Tiger Lake platforms, Qualcomm Snapdragon 835 & 855 SoCs, AMD Navi 12 and 14 GPUs, Arcturus and Renoir APUs along with Navi 12 + Arcturus power features.
  • Support has been added for the exFAT filesystem, virtio-fs for sharing filesystems with virtualized guests and fs-verity for detecting file modifications.
  • Built in support for the WireGuard VPN.
  • Enablement of lockdown in integrity mode.
Other notable kernel updates to 5.4 since version 4.15 released in 18.04 LTS include:

  • Support for AMD Rome CPUs, Radeon RX Vega M and Navi GPUs, Qualcomm Snapdragon 845 and other ARM SoCs and Intel Cannon Lake platforms.
  • Support for raspberry pi (Pi 2B, Pi 3B, Pi 3A+, Pi 3B+, CM3, CM3+, Pi 4B)
  • Significant power-saving improvements.
  • Numerous USB 3.2 and Type-C improvements.
  • A new mount API, the io_uring interface, KVM support for AMD Secure Encrypted Virtualization and pidfd support.
  • Boot speed improvements through changing the default kernel compression algorithm to lz4 (in Ubuntu 19.10) on most architectures, and changing the default initramfs compression algorithm to lz4 on all architectures.
Snap Store

The Snap Store (snap-store) replaces ubuntu-software as the default tool for finding and installing packages and snaps.

Xubuntu release notes:

  • A brand new dark theme was added, Greybird-dark, complementing the default Greybird theme. Both themes are available to snap and flatpak apps.
  • Six community wallpapers are bundled from winners of the Community Wallpaper Contest.
  • With the EoL (End of Life) of Python 2, we no longer ship it by default. Additionally, apt-offline and pidgin-libnotify are no longer included.
Known Issues
  • Users with AMD graphics may experience significant graphical issues and should consider waiting until the release of 20.04.1 later this year.
  • Window decorations are not displayed with tightvncserver. Users depending on VNC are advised to wait until 20.04.1 or use an alternative window manager for VNC until this is resolved.

Kubuntu release notes:

  • Firefox 75 is the default browser. This will receive security/version updates throughout 20.04 LTS lifetime.
  • Thunderbird is now the email client provided on the default install, replacing Kmail.
  • LibreOffice 6.4 is provided by default in the full installation.

Kubuntu 20.04 LTS ships with Qt LTS 5.12.8

Plasma 5.18 LTS has been developed to make it smoother to use while retaining the familiar setup.

Kubuntu 20.04 will initially ship with the most recent 5.18.4 scheduled bugfix release of Plasma 5.18 LTS.

All KDE4 and Qt4 libraries and applications have been removed from the 20.04 archive, and are therefore not supported.
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