Recently MariaDB Galera Cluster 10.4.3 RC was announced – Galera MariaDB 10.4.3 RC
I would like to summarize overall reported issues related to
Upgrade Tests from 10.3 version to 10.4.
In general we have 3 upgrade strategies:
* Provider upgrade – Upgrading only Galera
* Bulk upgrade – shut down all cluster and upgrade all nodes.
* Rolling Upgrade – Shut down nodes 1-by-1 and Upgrade sequentially.
There is great attention on smooth and safe Upgrade practices
which is quite valid point for all users.
Let’s see what we have on Rolling Upgrade side.
Here is the list of FIXED issues: