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You can generally use the latest script from the master branch for all versions. That is validated with all the current releases. Also, that script is available at get.rke2.io for extra ease of use 🙂 I will add that occasionally there are updates made to the install script that aren’t checked for backwards-compatibility on versions that are out of circulation, so for <= 1.21 it is probably safest to use the install scripts from those versions directly like the one you’ve linked

Hey Max! Thanks for your reply and clearing that up 🙂. Now I'll know how to handle this in the future.