Hi, we are planning to upgrade from v15 to v21, any advice? possible problem that we can face?
Thanks in advance.
Backup your database and try it on another instance to make sure you don’t encounter problems. Generally, Keycloak does okay with upgrades, but big version jumps can cause problems based on your data. If you encounter an issue, you might want to upgrade one major version at a time. Beyond that, if you encounter specific problems, post your entire findings here so that we can help you.
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