Changelog #9
Drupal core uses the third-party CKEditor library. This library has an error
in parsing HTML that could lead to an XSS attack. CKEditor 4.16.1 and later
include the fix.
Security Update
Changelog #8
Moderately critical security patch is now available for the Drupal module Ctools
Changelog #6
Maintenance and security release of the Drupal 8 series.
Changelog #2
A minor release containing several small upgrades and Drupal-released security patches.