How often do I have to update Galaxy in a productive environment

How often do I have to update Galaxy in a productive environment (just 2-3 users) in order to keep up with new tools?

Does updating Galaxy break a lot of dependencies for installed tools in general? Are there some kind of minor and mojor releases?

Is this documented anywhere?

Updating galaxy doesn’t usually break tools. The tool wrapper description doesn’t really change much.
I think Galaxy 16.01 was the last major change for Galaxy tool compatibility.

Branches in the repo titled ‘release_XXX’ are the best way to keep up with the releases rather than using the zipped releases as they contain important bug fixes.
Galaxy unfortunately doesn’t maintain semver patch versions, you have to use the commit hash for the branch.

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