[Lucene-java Wiki] Update of "ReleaseNote44" by RobertMuir

[Apache Wiki <wi...@apache.org>]

Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Lucene-java Wiki" for change notification.

The "ReleaseNote44" page has been changed by RobertMuir:
https://wiki.apache.org/lucene-java/ReleaseNote44?action=diff&rev1=5&rev2=6

  * FST's Builder can now handle more than 2.1 billion "tail nodes" while
    building a minimal FST.
  
- * FieldCache.DEFAULT.get(Ints|Longs) now uses bit-packing to save memory.
+ * FieldCache Ints and Longs now use bit-packing to save memory. String fields
+   have more efficient compression if there are many unique terms.
+ 
+ * Improved compression for NumericDocValues for dates and fields with very
+   small numbers of unique values.
  
  * New IndexWriter.hasUncommittedChanges(): returns true if there are changes
    that have not been committed.
@@ -61, +65 @@

  * New SimpleMergedSegmentWarmer: just ensures that data structures
    (terms, norms, docvalues, etc.) are initialized.
  
+ * IndexWriter flushes segments to the compound file format by default.
+ 
  * Various bugfixes and optimizations since the 4.3.1 release.
  
  Please read CHANGES.txt for a full list of new features.