Ubuntu 22.04 “Jammy Jellyfish” beta released

Few days ago the release of the beta version of what will be the next LTS version of Ubuntu 22.04 “Jammy Jellyfish” version in which the desktop environment was updated to the new version of Gnome 42 and in which settings are added throughout the environment for the dark interface style and optimizes the performance of GNOME Shell.

When the button is pressed PrintScreen, you can create a screencast or screenshot of a selected part of the screen or a separate window. To preserve the integrity of the design and the stability of the user environment in Ubuntu 22.04, some applications have been left behind in the GNOME 41 branch (mainly we are talking about applications translated in GNOME 42 to GTK 4 and libadwaita).

Most of the default settings are a desktop session based on the Wayland protocol, but leave the option to fall back to an X server when logging in.

It is also noted that in Ubuntu 22.04 10 color options are offered in dark and light styles. Desktop icons have been moved to the bottom right corner of the screen by default (this behavior can be changed in appearance settings).

In the subject Yaru, all buttons, sliders, widgets and toggles use orange instead of eggplant. A similar replacement is made to the icon set, as well as changing the color of the active window's close button from orange to gray and the color of the sliders from light gray to white.

Moreover, in Firefox is now only available in Snap format. The firefox and firefox-locale deb packages are replacements for the stubs that install a Snap package with Firefox. For users of the deb package, there is a transparent process to migrate to snap by publishing an update that will install the snap package and transfer the current configuration from the user's home directory.

In addition to this, it is also worth noting that many users should pay special attention to the following change that was made to increase security and that is that the utility os-prober is disabled by default.

For those who are not familiar with os-prober, they should know that this is a tool that allows you to search for boot partitions of other operating systems and add them to the boot menu, which basically translates with this change that those who perform an update or installation from zero and intend to do a dual boot, you may have problems with the grub entry failing.

For this it is recommended to use the UEFI bootloader to boot alternative operating systems, plus for those having problems, you can choose to return automatic detection of third-party operating systems in /etc/default/grub, you can change the GRUB_DISABLE_OS_PROBER setting and run the command “sudo update-grub ».

By default, the packet filter nftables is enabled. For backward compatibility, the iptables-nft package is available, which provides utilities with the same command line syntax as iptables, but translates the resulting rules into nf_tables bytecode.

Of the other changes that stand out from this new version:

• OpenSSH does not support digital signatures based on RSA keys with a SHA-1 hash ("ssh-rsa") by default.
• Added "-s" option to scp utility to work over SFTP protocol.
• Ubuntu Server builds for IBM POWER systems (ppc64el) have removed support for Power8 processors, builds are now built for Power9 CPUs ("–with-cpu=power9").
• Disabled access to NFS partitions using the UDP protocol (the kernel was compiled with the option CONFIG_NFS_DISABLE_UDP_SUPPORT=y).
• The Linux kernel has been updated to version 5.15.
• Updated package versions: LibreOffice 7.3, BlueZ 5.63, CUPS 2.4, NetworkManager 1.36, Mesa 22, PulseAudio 16, xdg-desktop-portal 1.14, PostgreSQL 14.
• The formation of sets of facilities that work in live mode for the RISC-V architecture is provided.

Download Ubuntu 22.04 beta

For those who are interested in being able to test the beta version of Ubuntu 22.04, they can download the system image from the official website of the distribution.

They can do it from the following link.