This release is a bugfix release.
Reminder: Deprecation of Usernames
As announced before, Atlassian has removed the support for usernames in Jira Cloud. This affects Backbone synchronizations between Jira Server to Jira Cloud and Jira Cloud to Jira Cloud. Now, Atlassian is finally removing the option to search by username in a JQL as announced in this blog post. Please update any JQLs you have configured in your Backbone synchronizations and use our improved way of limiting the synchronized issues.
All updates and fixes in this release
New Features and Improvements