A new release of the Ubuntu Cloud Images for stable Ubuntu release 16.04 LTS (Xenial Xerus) 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 These new images superseded the existing images [2].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:
 * cloud-init: 21.1-19-gbad84ad4-0ubuntu1~16.04.1 => 21.1-19-gbad84ad4-0ubuntu1~16.04.2 
 * dpkg: 1.18.4ubuntu1.6 => 1.18.4ubuntu1.7 


The following is a complete changelog for this image.
new: {'libzstd1': '1.3.1+dfsg-1~ubuntu0.16.04.1'}
removed: {}
changed: ['cloud-init', 'dpkg', 'grub-legacy-ec2']
new snaps: {}
removed snaps: {}
changed snaps: []
==== cloud-init: 21.1-19-gbad84ad4-0ubuntu1~16.04.1 => 21.1-19-gbad84ad4-0ubuntu1~16.04.2 ====
====     cloud-init grub-legacy-ec2
  * cherry-pick 83f6bbfb: Fix unpickle for source paths missing run_dir
    (#863) (LP: #1899299)
  * cherry-pick d132356c: fix error on upgrade caused by new vendordata2
    attributes (LP: #1922739)
==== dpkg: 1.18.4ubuntu1.6 => 1.18.4ubuntu1.7 ====
====     dpkg
  * Add Zstandard (zstd) decompression support for binary packages
    (LP: #1764220)
    - The changes to ./configure and *.in files were cherry-picked from a
      manual autoreconf run because the package build does not run
      autoreconf automatically and the full delta from autoreconf
      was very big.

--
[1] http://cloud-images.ubuntu.com/releases/xenial/release-20210429/
[2] http://cloud-images.ubuntu.com/releases/xenial/release-20210422/