A new release of the Ubuntu Cloud Images for stable Ubuntu release 21.10 (Impish Indri) is available at [1]. These new images superseded the existing images [2]. Images are available for download or immediate use on EC2 via publish AMI ids. Users who wish to update their existing installations can do so with:
   'sudo apt-get update && sudo apt-get dist-upgrade && sudo reboot'.

The following packages have been updated. Please see the full changelogs
for a complete listing of changes:
 * linux-meta: 5.13.0.22.33 => 5.13.0.23.34 
 * linux-signed: 5.13.0-22.22 => 5.13.0-23.23 
 * systemd: 248.3-1ubuntu8 => 248.3-1ubuntu8.1 
 * update-notifier: 3.192.45 => 3.192.45.1 


The following is a complete changelog for this image.
new: {'linux-headers-5.13.0-23-generic': '5.13.0-23.23', 'linux-headers-5.13.0-23': '5.13.0-23.23', 'linux-modules-5.13.0-23-generic': '5.13.0-23.23'}
removed: {'linux-headers-5.13.0-22-generic': '5.13.0-22.22', 'linux-modules-5.13.0-22-generic': '5.13.0-22.22', 'linux-headers-5.13.0-22': '5.13.0-22.22'}
changed: ['libnss-systemd:amd64', 'libpam-systemd:amd64', 'libsystemd0:amd64', 'libudev1:amd64', 'linux-headers-generic', 'linux-headers-virtual', 'linux-image-5.13.0-23-generic', 'linux-image-virtual', 'linux-virtual', 'systemd', 'systemd-sysv', 'systemd-timesyncd', 'udev', 'update-notifier-common']
new snaps: {}
removed snaps: {}
changed snaps: ['lxd', 'snapd']
==== linux-meta: 5.13.0.22.33 => 5.13.0.23.34 ====
====     linux-headers-generic linux-headers-virtual linux-image-virtual linux-virtual
  * Bump ABI 5.13.0-23
  * Packaging resync (LP: #1786013)
    - [Packaging] resync debian/dkms-versions from main package
==== linux-signed: 5.13.0-22.22 => 5.13.0-23.23 ====
====     linux-image-5.13.0-23-generic
  * Master version: 5.13.0-23.23
==== systemd: 248.3-1ubuntu8 => 248.3-1ubuntu8.1 ====
====     libnss-systemd:amd64 libpam-systemd:amd64 libsystemd0:amd64 libudev1:amd64 systemd systemd-sysv systemd-timesyncd udev
  [ Lukas Mrdian ]
  * Cherry-pick upstream 5ed0ea: hwdb: 60-keyboard:: Update Dell Privacy Local Mic Mute Hotkey (LP: #1926547)
    File: debian/patches/hwdb-60-keyboard-Update-Dell-Privacy-Local-Mic-Mute-Hotke.patch
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=041be812ac5c204ad09830dc796ebdb0d6d0894a
  * Support detection for ARM64 Hyper-V guests (LP: #1952599)
    Files:
    - debian/patches/lp1952599/0001-virt-Support-detection-for-ARM64-Hyper-V-guests.patch
    - debian/patches/lp1952599/0002-virt-Fix-the-detection-for-Hyper-V-VMs.patch
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=5060ac86698b206459cef42daa84499781147378
  [ Andy Chi ]
  * Add privacy micmute hotkey for Dell machine. (LP: #1952733)
    File: debian/patches/lp1952733-hwdb-60-keyboard-Update-Dell-Privacy-Micmute-Hotkey-Map.patch
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=f74b782d3ceb01d76c7bffdce7502763dd540150
  * Add microphone mute key for Dell machine. (LP: #1952735)
    File: debian/patches/lp1952735-keymap-Add-microphone-mute-keymap-for-Dell-Machine.patch
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=03c117092c1a32b5db025613d328add54bef3718
  [ Yao Wei ]
  * Add ACCEL_LOCATION=base property for Dell clamshell models (LP: #1943561)
    Files:
    - debian/patches/lp1943561/Add-additional-Dell-models-that-require-ACCEL_LOCATION-ba.patch
    - debian/patches/lp1943561/Use-SKU-to-identify-Dell-clamshell-models-for-acceleromet.patch
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=b6b30ad3d9ef862d30f397ba481fe4f647751c99
==== update-notifier: 3.192.45 => 3.192.45.1 ====
====     update-notifier-common
  * Adjust update-notifier-crash.service so that the report process is not
    killed before it has a chance to act (LP: #1821412)

--
[1] http://cloud-images.ubuntu.com/releases/impish/release-20220106/
[2] http://cloud-images.ubuntu.com/releases/impish/release-20211209/