The release notes are available here: http://docs.apigee.com/release-notes/content/apigee-release-notes
For Apigee Cloud customers -
Cloud customers hosted on Pantheon should apply updates to their site using the Pantheon dashboard:
and make sure all environments have been patched using the standard workflow:
For Apigee Private Cloud customers -
Apigee Private Cloud customers should make sure their systems are following Drupal security advisories: https://www.drupal.org/security
Follow the following process to update Drupal core and contributed modules: https://docs.apigee.com/private-cloud/v4.50.00/portal-upgrading-drupal
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