As of version 4.4, Axon Server has a new format for the index of events and snapshots, called JUMP_SKIP_INDEX. This is the default format for all contexts that are created from this version onwards. This index format uses a global index to locate the last event for a specific aggregate, and maintains per segment per aggregate the location of the previous event. It improves the efficiency in looking up aggregates that are distributed over segments that are further apart. For instance if you have 2000 event segments and an aggregate has events in segment 1500, 1000 and 500, using this index, Axon Server will find the latest event using the global index, and then from the index for segment 1500 that the previous event is in segment 1000. This prevents checking (the indexes of) all the files in between. When using this index, Axon Server will no longer create bloom filter files. For existing contexts the index format will remain BLOOM_FILTER_INDEX.