Creates a new config that with defaults that match the specified Version as well as the default {@link Analyzer}. If matchVersion is >= {@link Version#LUCENE_32}, TieredMergePolicy is used for merging; else LogByteSizeMergePolicy. Note that TieredMergePolicy is free to select non-contiguous merges, which means docIDs may not remain monotonic over time. If this is a problem you should switch to LogByteSizeMergePolicy or LogDocMergePolicy.