Ubuntu Server Changelog

What's new in Ubuntu Server 23.10.1 (Mantic Minotaur)

Oct 25, 2023

Apache2:
apache2 has been upgraded from 2.4.55 to 2.4.57, which adds the BCTLS and BNE RewriteRule flags to mod_rewrite and fixes security issues and several bugs.
Django:
Django has been updated to the latest LTS release 4.2 from 3.2, which includes many new features and bug fixes. All Django middleware provided in Ubuntu has also been updated to be compatible with the new version. See the 4.0 release notes 4 for features and updates added with the major version change and the 4.2 release notes 2 for the changes made leading up to the LTS release.
Dovecot:
Dovecot received a micro-point update to 2.3.20 from 2.3.19, which contains mainly bugfixes. There is also a new dsync_features=no-header-hashes setting, which enables an optimization that assumes identical IMAP UIDs contain the same mail contents. This is useful on IMAP servers that don’t cache the Date/Message-ID headers. There are also new Lua HTTP client settings and a new doveadm replicator status command.
Monitoring Plugins:
A micro-version release updates monitoring-plugins from 2.3.2 to 2.3.3. It provides one general new feature to use PRId64 and PRIu64 instead of %ld directly. See the release notes 7 for details on bugfixes and other enhancements.
Nginx:
Nginx is updated from version 1.22 to 1.24, which is predominantly comprised of bugfixes and a few minor features and refinements. See the upstream changelog 13 for full details.
Spamassassin:
Spamassassin 4 introduced support for DMARC. However, this depends on Perl modules not yet available from the main Ubuntu repository, so it is not enabled by default. The dependencies all exist in the universe repository. To enable it, manually install libmail-dmarc-perl alongside your Spamassassin installation, and update your Spamassassin configuration accordingly (see LP: #2023971 4).
Docker:
The docker.io package has been updated to version 24.0.5, which includes changes that can be seen in the upstream release notes 34. There are also two new Docker CLI plugins available in the Ubuntu archive:
docker-buildx version 0.11.2.
docker-compose-v2 version 2.20.2.
NOTE: The deprecated AUFS and legacy overlay storage drivers have been removed.
Containerd:
Containerd has been updated to version 1.7.2. See the upstream release notes 6 for all the changes.
Runc:
Runc has been updated to version 1.1.7. See the upstream release notes 4 for all the changes.
Samba:
The samba 4 package was updated to the 4.18.x series. Here are the upstream release notes: https://www.samba.org/samba/history/samba-4.18.0.html 14
Like was the case with the 4.17.x versions, this 4.18.x series further improves the performance of open/close operations and brings it back to the level of the 4.12 line, before a series of security fixes introduced this performance impact.
Please refer to the upstream release notes for more details on this and other changes.
ISC Kea
The ISC Kea DHCP server 5 was updated to the 2.2.1 maintenance release 2 which brings some bug fixes and other smaller improvements. Please see the announcement 2 for details.
The Ubuntu packaging is in sync with Debian and also got some translation updates and the AppArmor profile, introduced a few releases ago, received some tweaks.
QEMU:
The QEMU 12 package was updated to the 8.0.x series, which brings many bug fixes and new features.
Support for the Sapphire Rapids CPU model.
System emulation on 32-bit x86 hosts has been deprecated. The QEMU project no longer considers 32-bit x86 host support for system emulation to be an effective use of its limited resources, and thus intends to discontinue. User mode emulation continues to be supported on 32-bit hosts.
Support for igb device emulation.
Many fixes and improvements to the RISC-V support.
libvirt:
The libvirt 4 package was updated to version 9.6.0. These are the noteworthy changes to this release.
For QEMU:
Introduce support for igb network interface model.
Support compression for parallel migration
Add Sapphire Rapids CPU model
Support removable attribute for SCSI disk
OpenLDAP:
The OpenLDAP 8 package was updated to version 2.6.6, which brings several bug fixes. For more details, please see the upstream changelog 3.
sssd:
The sssd 8 package was updated to version 2.9.1, which brings several bug fixes and new features.
sss_simpleifp library is deprecated and might be removed in further releases.
“Files provider” (i.e. id_provider = files) is deprecated and might be removed in further releases. Consider using “Proxy provider” with proxy_lib_name = files instead.
Add support for ldapi:// URLs to allow connections to local LDAP servers.
Subiquity:
A new version of the Subiquity server installer has been released. Please read the full release notes for 23.10.1 32 on GitHub.
OpenStack:
Ubuntu 23.10 includes the latest OpenStack release, 2023.2 Bobcat, including the following components:
OpenStack Identity - Keystone
OpenStack Imaging - Glance
OpenStack Block Storage - Cinder
OpenStack Compute - Nova
OpenStack Networking - Neutron
OpenStack Telemetry - Ceilometer, Aodh, Gnocchi
OpenStack Orchestration - Heat
OpenStack Dashboard - Horizon
OpenStack Object Storage - Swift
OpenStack DNS - Designate
OpenStack Bare-metal - Ironic
OpenStack Filesystem - Manila
OpenStack Key Manager - Barbican
OpenStack Load Balancer - Octavia
OpenStack Instance HA - Masakari
OpenStack Container Orchestration - Magnum
Please refer to the OpenStack 2023.2 Bobcat release notes 11 for full details of this release of OpenStack.
OpenStack 2023.2 Bobcat is also provided via the Ubuntu Cloud Archive for Ubuntu 22.04 LTS. The Ubuntu Cloud Archive for OpenStack 2023.2 Bobcat can be enabled on Ubuntu 22.04 by running the following command:
sudo add-apt-repository cloud-archive:bobcat
WARNING: Upgrading an OpenStack deployment is a non-trivial process and care should be taken to plan and test upgrade procedures which will be specific to each OpenStack deployment.
Make sure you read the OpenStack Charm Release Notes 1 for more information about how to deploy and operate Ubuntu OpenStack using Juju.