Github user dszeto commented on a diff in the pull request:
https://github.com/apache/predictionio/pull/471#discussion_r219938608
--- Diff: docs/manual/source/install/index.html.md.erb ---
@@ -24,8 +24,8 @@ limitations under the License.
It is **very important** to meet the minimum version of the following
technologies that power Apache PredictionIO®.
-* Apache Hadoop 2.6.5 (optional, required only if YARN and HDFS are needed)
-* Apache Spark 1.6.3 for Hadoop 2.6
+* Apache Hadoop 2.7.3 (optional, required only if YARN and HDFS are needed)
+* Apache Spark 2.1.1 for Hadoop 2.7
--- End diff --
I wonder if we should put Hadoop 2.6.x/2.7.x, and Spark 2.0+ here. We still
run CI on Spark 2.0, and the Hadoop requirement comes mostly from Spark.
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