0.5.0 May 3, 2016: Frequent Items

• Introduction of the FREQUENCY family of sketches
• JDK7 support has been removed. JDK8 is now required.
• Added BoundsOnBinomialProportions and BoundsOnRatiosInSampledSets
• Numerous updates to Javadocs, code docs, and a few minor API changes.

0.4.1 Apr 6, 2016: Javadoc Fixes

• Added missing javadocs mostly

0.4.0 Mar 4, 2016: Tuple Sketches

• Introduction of Tuple Family of sketches
• Promoted ResizeFactor to sketches package
• Renamed BinomialBounds to BinomialBoundsN
• Merged theta/DirectUnion and theta/HeapUnion into theta/UnionImpl

0.3.2 Feb 10, 2016: Quantiles Union

• Added Union and UnionBuilder to Quantiles

0.3.1 Feb 4, 2016: Memory Request

• Added MemoryRequest capability to all Memory classes

0.3.0 Jan 25, 2016: Quantiles

• Added Quantiles family of sketches
• Renamed and promoted theta/Bounds to sketches/BinomialBounds
• Promoted EquivTables to sketches
• Promoted most of theta/HashOperations to sketches/HashOperations

0.2.2 Nov 17, 2015: Union Impl

• Merged DirectUnion and HeapUnion into UnionImpl. Vastly simplified code base.
• Added hashSearch into HashOperations

0.2.1 Nov 13, 2015: Union datums

• Added datum API to theta/Union

0.2.0 Nov 6, 2015: HLL Compressed & Dense

• Added HLL-compressed and dense variations of HLL sketches
• Added MemoryRequest capability to Memory operations
• Added SetOperationBuilder for set ops
• Added UpdateSketchBuilder
• Removed obsolete SetOpReturnState

0.1.1 Aug 12, 2015: HLL base

• Added HLL base sketches
• Added JDK7 compatibility mode (temporary accommodation for slow adopters)