Hi All, Spark 1.5.1 is a maintenance release containing stability fixes. This release is based on the branch-1.5 maintenance branch of Spark. We *strongly recommend* all 1.5.0 users to upgrade to this release.
The full list of bug fixes is here: http://s.apache.org/spark-1.5.1 http://spark.apache.org/releases/spark-release-1-5-1.html (note: it can take a few hours for everything to be propagated, so you might get 404 on some download links, but everything should be in maven central already)
