What is the latest lucene index version that is supported? trying to generate lucene vectors, index created using solr 4.10.2 and solr 6.0 apis.
command > ./mahout lucene.vector --dir > usr/test/solr-4.10.2/example/solr/collection1/data/index > --output /user/test/part-out.vec --field description --idField id --dictOut > /user/test/dict.txt Exception in thread "main" org.apache.lucene.index.IndexFormatTooNewException: Format version is not supported (resource: NIOFSIndexInput(path="/user/ test/solr-4.10.2/example/solr/collection1/data/index/segments.gen")): -3 (needs to be between -2 and -2)