Percona XtraBackup Version Naming & Behavior Changes

There’s a new naming structure for Percona Xtrabackup releases, plus new changes to Percona Xtrabackup behavior made necessary by upstream changes to MySQL from Oracle.  Read the details at:
https://www.percona.com/blog/2020/08/18/aligning-percona-xtrabackup-versions-with-percona-server-for-mysql/