Canonical announced the release of Ubuntu’s latest LTS (Long Term Support) version 22.04 (Jammy Jellyfish), which is the 36th version since 2004’s 4.10 (Warty Warthog).
Ubuntu 22.04 LTS will bring 5 years of support to Ubuntu Desktop, Ubuntu Server, Ubuntu Cloud, and Ubuntu Core, until April 2027.
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Some improvements in Ubuntu 22.04 LTS are as follows:
Linux kernel:
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Ubuntu Desktop will automatically opt-in to the v5.17 kernel on the latest generation of certified devices (linux-oem-22.04).
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Ubuntu Desktop uses a rolling HWE kernel (linux-hwe-22.04) on all other hardware generations. The rolling HWE kernels are based on the v5.15 kernels of the 22.04.0 and 22.04.1 releases.
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Ubuntu Server defaults to non-rolling LTS kernel v5.15 (linux-generic).
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Ubuntu Cloud and devices work with partners to use optimized kernel v5.15+.
Nvidia driver:
Ubuntu 22.04 LTS adds Linux-restricted modules for NVIDIA drivers on ARM64 in addition to the existing x86_64. ARM64 users can now use the ubuntu-drivers tool to install and configure Nvidia drivers from the Ubuntu Archive.
Toolchain upgrade:
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GCC was updated to version 11.2.0, binutils were updated to 2.38, and glibc was updated to 2.35.
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Upgraded Python to 3.10.4 and Perl to 5.34.0.
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LLVM now defaults to version 14, golang defaults to version 1.18.x, and rustc defaults to version 1.58.
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In addition to OpenJDK 11, OpenJDK 18 is now available (but not for package building).
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Ruby updated from v2.7.4 to v3.0.
OpenSSL 3.0:
The OpenSSL library has been upgraded to the new 3.0 version, with many legacy algorithms disabled by default. Certificates that use SHA1 or MD5 as the hash algorithm are now invalid at the default security level.
Ubuntu desktop:
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Ubuntu now offers 10 color options, each with dark and light styles.
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Firefox is now only available in Ubuntu as a snapshot, maintained directly by Mozilla, which means getting the latest Firefox version faster.
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Desktop icons appear in the bottom right corner by default but can be changed with a new setting added to the Appearance pane of the Settings app.
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New settings to control the appearance and behavior of the Dock.
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Dock device and file manager integration have been improved.
GNOME:
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GNOME uses GNOME 41 and GNOME 42, mostly to avoid using libadwaita.
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Support for a new cross-desktop dark style preference.
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GNOME Shell and mutter bring many performance improvements.
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Support for hardware with privacy screens.
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RDP can now be used to share desktops remotely.
