Earlier last week, Oracle released their Q2 releases series. Unlike previous releases, backward compatibility has now been broken with previous versions of MySQL.
MySQL 8.0.29 extended the support for the online DDL algorithm INSTANT. Prior to 8.0.29 only adding columns to the end of the table was supported.
In 8.0.29, this functionality was extended to allow the INSTANT algorithm the ability to add columns in any position of the table as well to drop columns. This new functionality required the redo log version to increase and new redo log types to be added, thus making it incompatible with older versions of the MySQL server and also older versions of Percona Xtrabackup. Please note that an in-place minor version downgrade of the server is also not supported.
We are currently working on making Percona Xtrabackup compatible with those changes. Until then users relying on Percona Xtrabackup for backups are advised to not upgrade the MySQL server to 8.0.29.
About the Author
Marcelo AltmannMarcelo Altmann is a C++ Software Engineer working on MySQL related products. At Percona he has also worked as a Senior Support Engineer and a Tech Lead of the Support Team. Prior to joining Percona , he worked as a MySQL DBA at Ireland's CCTLD, and worked as a DBA/PHP developer in Brazil. He also blogs about other MySQL related stuff at his personal blog.
I would sure love it if percona xtrabackup could keep up with latest MySQL better. That may be impossible I know. I also with there were a release announce list so I’d get notified right away. Maybe you could maintain releases (or empty release announcements) on the github repo so I could subscribe on GitHub?
Hi Randy, we always publish our releases on our forums and release note page.
As for our forum, you can subscribe when any new post is added into a category. The search you are looking for is https://forums.percona.com/tags/c/mysql-mariadb/percona-xtrabackup/10/new-release
Thanks. There’s no obvious way to subscribe to the category you linked (yes I was logged in). You can do better than forum announcements 🙂 (In fact there’s no obvious way to subscribe to anything. I looked under every menu and every link.)
Any update on an estimated ETA?
I’ve been using Percona XtraBackup for years, and love it. I greatly appreciate all of the amazing work the Percona team has done on XtraBackup. We upgraded to MySQL 8.0.29 in the middle of June without first checking if XtraBackup had version parity (definitely our own fault), and are in a situation where we can’t downgrade easily.
The forums show that there hasn’t been a Percona XtraBackup release since May 26. Is there any hope of an 8.0.29 release soon?
Any ETA for Version 8.0.29 support?