- Proxy doesn't do well, if preferredRecordSyntax is not set. - Per database config. - More control the various optimizations with config.. query match record caching fix-up reference ID pre-init keepalive - Live status (via search, present). - Possible threading. - Honor record XPath. - Character set negotiation. - Character set conversion for SRW queries. - MARC in UTF-8. - Auto generate Explain indexInfo from cql.properties .. Or generate cql.properties from Explain (to reduce duplicate info).