A new release of the Ubuntu Cloud Images for stable Ubuntu release 20.04 LTS (Focal Fossa) 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 These new images superseded the existing images [2].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:
 * initramfs-tools: 0.136ubuntu6.3 => 0.136ubuntu6.4 
 * isc-dhcp: 4.4.1-2.1ubuntu5 => 4.4.1-2.1ubuntu5.20.04.1 
 * linux-meta: 5.4.0.67.70 => 5.4.0.70.73 
 * linux-signed: 5.4.0-67.75 => 5.4.0-70.78 
 * systemd: 245.4-4ubuntu3.4 => 245.4-4ubuntu3.5 


The following is a complete changelog for this image.
new: {'linux-headers-5.4.0-70': '5.4.0-70.78', 'linux-modules-5.4.0-70-generic': '5.4.0-70.78', 'linux-headers-5.4.0-70-generic': '5.4.0-70.78'}
removed: {'linux-modules-5.4.0-67-generic': '5.4.0-67.75', 'linux-headers-5.4.0-67': '5.4.0-67.75', 'linux-headers-5.4.0-67-generic': '5.4.0-67.75'}
changed: ['initramfs-tools', 'initramfs-tools-bin', 'initramfs-tools-core', 'isc-dhcp-client', 'isc-dhcp-common', 'libnss-systemd:amd64', 'libpam-systemd:amd64', 'libsystemd0:amd64', 'libudev1:amd64', 'linux-headers-generic', 'linux-headers-virtual', 'linux-image-5.4.0-70-generic', 'linux-image-virtual', 'linux-virtual', 'systemd', 'systemd-sysv', 'systemd-timesyncd', 'udev']
new snaps: {}
removed snaps: {}
changed snaps: ['lxd', 'snapd']
==== initramfs-tools: 0.136ubuntu6.3 => 0.136ubuntu6.4 ====
====     initramfs-tools initramfs-tools-bin initramfs-tools-core
  * hook-functions: Search for firmware under /lib/firmware/updates
    (LP: #1571506)
==== isc-dhcp: 4.4.1-2.1ubuntu5 => 4.4.1-2.1ubuntu5.20.04.1 ====
====     isc-dhcp-client isc-dhcp-common
  * Fix env variable for INTERFACES (LP: #1894172)
    - d/isc-dhcp-server.isc-dhcp-server{,6}.service: Replace $INTERFACES
      variable with $INTERFACEv4 and $INTERFACESv6, respectively, for
      respective services file.
==== linux-meta: 5.4.0.67.70 => 5.4.0.70.73 ====
====     linux-headers-generic linux-headers-virtual linux-image-virtual linux-virtual
  * Bump ABI 5.4.0-70
  * Bump ABI 5.4.0-69
  * Packaging resync (LP: #1786013)
    - [Packaging] resync debian/dkms-versions from main package
  * Bump ABI 5.4.0-68
  * Packaging resync (LP: #1786013)
    - [Packaging] resync debian/dkms-versions from main package
==== linux-signed: 5.4.0-67.75 => 5.4.0-70.78 ====
====     linux-image-5.4.0-70-generic
  * Master version: 5.4.0-70.78
  * Master version: 5.4.0-69.77
  * Master version: 5.4.0-68.76
==== systemd: 245.4-4ubuntu3.4 => 245.4-4ubuntu3.5 ====
====     libnss-systemd:amd64 libpam-systemd:amd64 libsystemd0:amd64 libudev1:amd64 systemd systemd-sysv systemd-timesyncd udev
  [ Ioanna Alifieraki ]
  * d/p/lp1911187-systemctl-do-not-shutdown-immediately-on-scheduled-shutdo.patch:
    Do not shutdown immediately when scheduled shutdown fails (LP: #1911187)
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=3899c9d5c171e84fc503c6ab46aea7cc9def7235
  [ Dimitri John Ledkov ]
  * d/p/lp1878969-meson-initialize-time-epoch-to-reproducible-builds-compat.patch:
    meson: initialize time-epoch to reproducible builds compatible value
    (LP: #1878969)
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=84212797d21ed08031e1d71fe5e118bdd9873c0f
  [ Dan Streetman ]
  * d/p/lp1913189-test-accept-that-char-device-0-0-can-now-be-created-.patch:
    - Fix failing test case under 5.8 kernel (LP: #1913189)
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=782a382017ce188dbf9a40adabd265943d7db119
  * d/p/lp1913423-hashmap-make-sure-to-initialize-shared-hash-key-atom.patch:
    Thread-safe init of hashmap shared key (LP: #1913423)
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=fc8dde7c4b1944d1583866f61c2314174b4dd06a
  * d/p/lp1902236-nss-systemd-don-t-synthesize-root-nobody-when-iterat.patch:
    Don't synthesize root/nobody when iterating (LP: #1902236)
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=4d20e415ecd5b0fd032b4cf45bd9fd344cc434ac
  * d/p/debian/patches/lp1880258-log-nxdomain-as-debug.patch:
    Change NXDOMAIN 'errors' to log level debug (LP: #1880258)
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=80163a2097aa876fe73b6071495ae4ad8749d04e
  * d/p/lp1913763-udev-rules-add-rule-to-create-dev-ptp_hyperv.patch:
    Create symlink for hyperv-provided ptp device (LP: #1913763)
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=b02053da2ff3fee6221bd8310488af0f52b140f1

--
[1] http://cloud-images.ubuntu.com/releases/focal/release-20210323/
[2] http://cloud-images.ubuntu.com/releases/focal/release-20210315/