Pig is based on Apache Pig 0.12.0 and includes the following patches:
PIG-4057 : Group All followed by CROSS with default parallelism produces wrong results
PIG-4175: PIG CROSS operation follow by STORE produces non-deterministic results each run
PIG-3522: Remove JSCH jar from PIG
PIG-3518: Need to ship jruby.jar in the release.
PIG-3517: Fix PermGen error in Pig Unit test on Hadoop 2.
PIG-3516: Pig does not bring in joda-time as dependency in its pig-template.xml.
PIG-3257: Add a UUID function to Pig.
