If possible, test the highest sstable format version, as it's the mostly used. If there pre-written sstables we need to load from the test directory from an older version, either specify their version explicitly, or use the new test_env::reusable_sst method that looks up the latest sstable version in the given directory and generation. Test: unit(release) Signed-off-by: Benny Halevy <bhalevy@scylladb.com> Message-Id: <20201210161822.2833510-1-bhalevy@scylladb.com>