HSEARCH-1191 DocumentExtractor to use the new FieldLoadingVisitor strategy: old method was removed
HSEARCH-1191 IndexReader instances are now opened via DirectoryReader
HSEARCH-1191 Analyzers: apply required changes to use the Analyzer framework and adapt to new Solr classloading
HSEARCH-1191 Fix tests: CompressionTest
HSEARCH-1191 Document.getFieldable is now getField (and returns a different type)

Also, Field no longer implements Fieldable
HSEARCH-1191 Searcher instances no longer require to be closed (and close() method was removed)

Needless to say, you still need to close the IndexReader which was provided to the Searchers.
HSEARCH-1191 [SPI] We changed the createTimeoutException() API
HSEARCH-1191 Fix StoreNormsTest: Field#getOmitNorms method is gone
HSEARCH-1191 Fix test WorkDoneOnEntitiesTest
HSEARCH-1191 Fix test: SharingBufferIndexProviderTest
HSEARCH-1191 [API] SortField type is now an inner enum SortField.Type.STRING
HSEARCH-1191 Reintroduce as deprecated the addNumericFieldToDocument helper, fix NumericField tests
HSEARCH-1191 Reuse our EMPTY_DOCIDSET implementation in tests
HSEARCH-1191 Update DocIdSet tests and add one for the Elias-Fano encoder
HSEARCH-1191 Fix test: SortTest
HSEARCH-1191 Filter implementation updates
HSEARCH-1191 Refactor our integration with the Lucene search engine
HSEARCH-1191 Update tests: ProvidedIdTest
HSEARCH-1191 Fix test: NumericBigDecimalBridgeTest
HSEARCH-1191 More work on Analyzer tests