- Quantile Sketches
- The major APIs for all the quantile sketches now derive from interfaces common to all the quantile sketches. This makes it much easier for the user to move from one quantile sketch to another with only very minor API changes.
- All the quantile sketches now have a "SortedView", which is iterable and makes analysis of the quantile distribution even easier.
- HLL Sketches
- Major speed performance improvements for HLL union/merge operations.
- Major improvements to the HLL Javadocs.
- Theta Sketches
- The Theta sketch has been enhanced with an optional compress operation that makes the serialized theta sketch smaller.
- TestNG has been updated to version 7.5.1 (works with Java 8), which includes the Zip Slip Vulnerability fix.