Hi @tkcent,
We expect Percona XtraDB cluster of 8.0.25-15 version to be released within a week or two. Now it is being tested by our QA team and once everything is verified it will be release even earlier.
With regard to the installation from testing repo and subsequent upgrade to the release one, such procedure was not tested and highly not recommended in order not to break production databases. Please use packages from testing repos only in your staging environments since they are not fully verified by QA and can break production systems.
Hi @tkcent,
This is to let you know that Percona XtraDB cluster of 8.0.25-15.1 has been released. You may find the release notes at: Percona XtraDB Cluster 8.0.25-15.1