Apache Spark currently depends on a forked version of Apache Hive. AFAIK, the only change in the fork is to work around the issue that Hive publishes only two sets of jars: one set with no dependency declared, and another with all the dependencies included in the published uber jar. That is to say, Hive doesn't publish a set of jars with the proper dependencies declared.
There is general consensus on both sides that we should remove the forked Hive.
The change in the forked version is recorded here https://github.com/JoshRosen/hive/tree/release-1.2.1-spark2
Note that the fork in the past included other fixes but those have all become unnecessary.