Hello there,
It is recommend creating a test environment with the newest version (v12.2.1) and then export the jobs from whatever version you are upgrading from and import them to the test environment. I'm dropping a link below to help out with this:
https://help.visualcron....#settings---log-settings This will help make sure that the jobs will continue to work without issues and to help troubleshoot issues that do arise when upgrading.
You can also implement a test environment and install/test things out with different versions of the client. An example would be to jump from v9.0.0 to 10.0.0 to 11.0.0 etc. If you choose to go this route, please reach out to support to request access to the older versions.
Finally, you can also jump straight from your current version to the latest version but it is recommended to take a look at the change log for all the changes that have been applied:
https://www.visualcron.com/changelog.aspx Additionally, as of v12, the client and server version must match, this version is not backwards compatible with any pre v12 versions.