I agree with Ashwanth. It might also be a matter of trying to upgrade from a very old version to the latest, without considering changes in the versions in between.
For instance, [20.2.0](https://www.gocd.org/releases/#20-2-0) made some SSL/TLS changes which will need to be considered if upgrading from an old version. My suggestion would be to set up a test server and test agent and try the upgrade there, reading all the release notes in between for any major changes. The biggest changes usually will be Java version changes, one-time DB upgrade (around 20.5.0, I think) and SSL/TLS changes. -- You received this message because you are subscribed to the Google Groups "go-cd" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/go-cd/m2o8cxetca.fsf%40arvindsv.com.
