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Ubuntu Changelog

What's new in Ubuntu 23.04 (Lunar Lobster)

May 1, 2023
  • Introduction:
  • These release notes for Ubuntu 23.04 (Lunar Lobster) provide an overview of the release and document the known issues with Ubuntu and its flavours.
  • Support lifespan:
  • Ubuntu 23.04 will be supported for 9 months until January 2024. If you need Long Term Support, it is recommended you use Ubuntu 22.04 LTS 580 instead.
  • NEW FEATURES IN 23.04:
  • Updated Packages:
  • Linux kernel:
  • Ubuntu 23.04 is shipped with the new 6.2 Linux kernel that brings many new features.
  • Notable Ubuntu kernel features:
  • Support to build and run out-of-tree Rust :crab: modules 207 with generic and lowlatency kernels
  • Newer LSM stacking and AppArmor patch set
  • Notable upstream 80 kernel features:
  • Performance boost for Older Intel Skylake CPUs with Call Depth Tracking
  • Support for Intel Arc graphics DG2/Alchemist
  • New Intel TDX guest driver
  • Support for Sony DualShock 4 gamepads
  • Updated zstd compression code
  • Miscellaneous BPF improvements
  • New hardware support, various performance and security improvements
  • systemd v252.5:
  • The init system was updated to systemd v252.5. Please refer to the upstream changelog 105 for more information about individual features.
  • Toolchain Upgrades :hammer_and_wrench:
  • OpenJDK
  • The default Java runtime and JDK were updated to OpenJDK v17. Java 17 is the latest LTS version.
  • .Net:
  • .Net v7 (7.0.105)runtime and related packages were added. .Net v6 packages were updated to the latest monthly release 6.0.116
  • golang:
  • The go language compiler was updated to v1.20, which the latest upstream stable version.
  • Rust:
  • The rustc compiler was updated to v1.67 and the cargo package manager was updated to 0.68
  • Python:
  • Python was updated to v3.11
  • debuginfod service:
  • A lot of work has been done during this cycle to improve our debuginfod service 26.
  • The service now indexes and serves source-code for a considerable number of packages (those that honor dpkg-buildflags during build time). Ultimately, this means that users will not need to manually download a package’s source-code (using apt-get source, for example), nor will they need to fiddle with GDB’s dir or set substitute-path commands. Source-code fetching will be done transparently by the debugger, which will save a considerable amount of time.
  • The service is now able to index and service debugging artifacts from private PPAs. Currently, it only indexes the ESM 17 PPAs.
  • The rate at which the service indexes new ddebs and source-code has been improved.
  • Ruby:
  • Ruby :gem: was updated from v3.0 to v3.1. More details in its section below.
  • Security Improvements:
  • The ca-certificates package has been updated to the 2.60 version of the Mozilla certificate authority bundle.
  • Base System:
  • Slight change in behavior when matching a (physical) interface by using the match.macaddress stanza, using PermanentMACAddress= matching over simple MACAddress= matching, which might affect interface matching in certain containers or VMs.
  • A new netplan status subcommand is implemented to query the systems current networking state.
  • UBUNTU DESKTOP:
  • New Installer:
  • The default Ubuntu Desktop installer is now a Flutter app backed by subiquity and packaged as a snap
  • The Minimal install is now faster than the Full install which wasn’t true with the old installer.
  • Installs the available security updates on the target system
  • MOK Enrollment 108 is not yet supported. While ubuntu-drivers will be run if the “Install third-party software” checkbox is selected, drivers that also required MOK enrollment will need to do so after installation is complete.
  • The legacy installer is still available 108 in case of issues with the new installer.
  • GNOME:
  • GNOME has been updated to include new features and fixes from the latest GNOME release, GNOME 44 684
  • Updated Ubuntu font:
  • The Ubuntu font has been updated
  • Updated Applications:
  • Firefox 53 111 :fire::fox_face:
  • LibreOffice 7.5.2 75 :books:
  • LibreOffice is now available on RISC-V
  • Thunderbird 102.10 :cloud_with_lightning::bird:
  • Updated Subsystems:
  • BlueZ 5.66 63
  • new cups-filters 22
  • NetworkManager 1.42 62
  • Pipewire 0.3.65 96
  • Poppler 22.12 36
  • xdg-desktop-portal 1.16 38
  • New Active Directory features:
  • Active Directory (AD) Integration is one of the most popular Ubuntu Desktop enterprise features and Ubuntu Desktop 22.04 LTS brought Active Directory integration to the next level through ADsys 92. This client enables full Group Policy support, privilege escalation and remote script executions.
  • In Ubuntu 23.04 we’ve added support for enterprise proxy, app confinement and network shares to further expand its functionality before backporting them to Ubuntu 22.04 LTS and Ubuntu 20.04 LTS later this year.