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Understand version numbers

A version number identifies the product release. The product contains the latest features, improvements, and bug fixes at the time of that release.

In the 8.0 series, Oracle followed a fast continuous delivery approach, frequently pushing both patches and new features, which sometimes led to stability and compatibility issues. In contrast, 8.4 as an LTS release limits changes to essential fixes, improving overall stability and reducing operational risk.

Any Percona XtraBackup 8.4 release can work with any Percona Server for MySQL 8.4 or MySQL 8.4 release. You no longer need to match the Percona XtraBackup version number with the server version number.

8.4.0 -1
Base version Minor build version

Percona uses semantic version numbering, which follows the pattern of base version and build version. Percona assigns unique, non-negative integers in increasing order for each version release. The version number combines the base MySQL 8.4 version number and the minor build version.

The version numbers for Percona XtraBackup 8.4.0-4 define the following information:

  • Base version - the leftmost numbers indicate the MySQL 8.4 version used as a base. An increase in base version resets the minor build version to 0.

  • Minor build version - an internal number that denotes the version of the software. A build version increases by one each time the Percona XtraBackup is released.