Running tools that write into a segment store might result in unwanted upgrading if the version of the tool uses a more recent segment version than the store. E.g. off line compaction currently upgrades segment format 10 to 11.
To protected against inadvertent upgrades, a tool should check whether the segment version of the store matches its expectation (currently 11). If not, the tool should exit with a respective warning / error. For some tools it can make sense to provide a flag (e.g. --force) to override this. With this e.g. offline compaction can still be used for upgrading a segment store if explicitly told to do so.