Hello,

I need to upgrade running instance of H2 because we are getting the
"File ID mismatch" exception during startup index creation or some
data operations with tablescans (DELETE FROM ... WHERE
non_index_column). We do need to save all data (or most of them) and I
hope upgrade could help here because this problem is already fixed
according to the changelog.

Is it ok to just upgrade the JAR file and restart our system? Or is
there some need of upgrading the data format to new storage version to
solve this issue? I cannot find anything about upgrading in the
documentation.

Thanks
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