The significant change in Ubuntu MATE 21.10 is the introduction of MATE Desktop 1.26.0 ✨ which was 18 months in the making. Thanks to the optimisations in MATE Desktop 1.26, Ubuntu MATE 21.10 is faster and leaner 💪

Ubuntu MATE 21.10 Ubuntu MATE 21.10 (Impish Indri).

What changed since the Ubuntu MATE 21.04?

Here are the highlights of what’s changed since the release of Hirsute Hippo 🦛

MATE Desktop 🧉

A significant effort 😅 has been invested in fixing bugs 🐛 in MATE Desktop 1.26.0, optimising performance ⚡ and plugging memory leaks. MATE Desktop is faster and leaner as a result and it’s underpinnings have been modernised and updated. This last point mostly benefits developers working on MATE, but is important to highlight to users at it demonstrates MATE Desktop is being maintained to ensure it’s longevity.

Here are some of the other quality of life 💌 improvements in MATE Desktop 1.26:

  • The Control Center features:
    • Improved Window Preferences dialog with a more comprehensive window behaviour and placement options presented.
    • Display preferences now has an option for discrete display scaling.
    • Power Manager has a new option to enable keyboard dimming.
    • Notifications now support for hyperlinks.
  • Caja can format drives and has a new Bookmarks sidebar.
  • Caja Actions, which allows you to add arbitrary programs to be launched through the context menu, is now part of the Desktop.
  • Calculator now uses GNU MPFR/MPC for high precision, faster computation and additional functions.
  • Pluma has a new mini map instant overview, a grid background to turn Pluma into a writing pad and the preferences have been redesigned.
  • Atril is much faster scrolling through large documents and the memory footprint has been reduced.
  • Engrampa, the archive manager, now supports EPUB, ARC and encrypted RAR files.
  • Marco, the windows manager:
    • Correctly restores minimised windows to their original position.
    • Thumbnail window previews support HiDPI.
  • Netspeed applet shows more information about your network interfaces.

While MATE Desktop is not completely ready for Wayland just yet, 1.26.0 represents a significant stepping stone towards that objective with most of the MATE Desktop being able to run on a Wayland compositor. 👍

Ubuntu MATE Enhancements

Ubuntu MATE has tweaked 🔧 the default desktop configuration slighty:

  • Image Extrapolation and Interpolation is disabled by default in Eye of MATE to make image viewing faster and image quality sharper.
  • The Alt-Tab pop-up is now expanded to fit long window titles.
  • If you use the Mutiny layout, session loading is now faster.

Guest Session

Once in a while a friend, family member, or colleague may want to borrow your computer 😱 The Guest Session provides a convenient way, with a high level of security, to lend your computer to someone else. A guest session can be launched either from the login screen or from within a regular session. If you are currently logged in, click the icon at the far right of the menu bar and select Guest Session. This will lock the screen for your own session and start the guest session.

A guest cannot view the home folders of other users, and by default any saved data or changed settings will be removed/reset at logout. It means that each session starts with a fresh environment, unaffected by what previous guests did.

RedShift

RedShift makes a return, after being temporarily removed in Ubuntu MATE 21.04.

Raspberry Pi images

We will be refreshing our Ubuntu MATE images for Raspberry Pi in the coming weeks.

Major Applications

Accompanying MATE Desktop 1.26.0 and Linux 5.13 are Firefox 93.0, Celluloid 0.20, LibreOffice 7.2.1.2

See the Ubuntu 21.10 Release Notes for details of all the changes and improvements that Ubuntu MATE benefits from.

Download Ubuntu MATE 21.10

This new release will be first available for PC/Mac users.

Download

Upgrading from Ubuntu MATE 21.04

You can upgrade to Ubuntu MATE 21.10 from Ubuntu MATE 21.04. Ensure that you have all updates installed for your current version of Ubuntu MATE before you upgrade.

  • Open the “Software & Updates” from the Control Center.
  • Select the 3rd Tab called “Updates”.
  • Set the “Notify me of a new Ubuntu version” drop down menu to “For any new version”.
  • Press Alt+F2 and type in update-manager -c -d into the command box.
  • Update Manager should open up and tell you: New distribution release ‘XX.XX’ is available.
    • If not, you can use /usr/lib/ubuntu-release-upgrader/check-new-release-gtk
  • Click “Upgrade” and follow the on-screen instructions.

There are no offline upgrade options for Ubuntu MATE. Please ensure you have network connectivity to one of the official mirrors or to a locally accessible mirror and follow the instructions above.

Known Issues

Here are the known issues.

Component Problem Workarounds Upstream Links
Plank When snaps update, they disappear from Plank.
Ubuntu Ubiquity slide shows are missing for OEM installs of Ubuntu MATE
VTE gdebi can not install .deb packages

Feedback

Is there anything you can help with or want to be involved in? Maybe you just want to discuss your experiences or ask the maintainers some questions. Please come and talk to us.

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