See the upstream changelog for more information about individual features. The init system was updated to systemd v253.5. config tuning of the low-latency kernel for desktop-oriented tasks ( LP: #2028568). Enabled multi-gen LRU page reclaiming by default ( LP: #2023629).zstd compressed modules ( LP: #2028568) to shorten boot time.Usual set of changes to support new hardware.New cachestat() system call (query the page-cache state of files and directories).
Ability to mount a file system underneath an existing mount on the same mount point useful in container scenarios ( Merge tag ‘v6.5/vfs.mount’ of git:///pub/scm/linux/kernel/git/vfs/vfs).The io_uring subsystem can now store the rings and submission queue in user-space memory.Support for unaccepted memory (protocol by which secure guest systems accept memory allocated by the host - Seeking an acceptable unaccepted memory policy.The Loongarch architecture now supports simultaneous multi-threading (SMT).arm64 permission-indirection extension (technology to set special memory permissions).Intel’s “Topology Aware Register and PM Capsule Interface” (interface that provides better power-management features).Ubuntu 23.10 includes the new 6.5 Linux kernel that brings many new features. sources files ( Improvements to PPA management in 23.10). add-apt-repository now adds PPAs as deb822.If you need Long Term Support, we recommend you use Ubuntu 22.04 LTS instead. Ubuntu 23.10 will be supported for 9 months until July 2024. These release notes for Ubuntu 23.10 (Mantic Minotaur) provide an overview of the release and document the known issues with Ubuntu and its flavours. Mantic Minotaur Release Notes Table of Contents