Github user srowen commented on a diff in the pull request:
https://github.com/apache/spark/pull/18207#discussion_r120308919
--- Diff: docs/index.md ---
@@ -26,15 +26,13 @@ Spark runs on both Windows and UNIX-like systems (e.g.
Linux, Mac OS). It's easy
locally on one machine --- all you need is to have `java` installed on
your system `PATH`,
or the `JAVA_HOME` environment variable pointing to a Java installation.
-Spark runs on Java 8+, Python 2.6+/3.4+ and R 3.1+. For the Scala API,
Spark {{site.SPARK_VERSION}}
+Spark runs on Java 8+, Python 2.7+/3.4+ and R 3.1+. For the Scala API,
Spark {{site.SPARK_VERSION}}
uses Scala {{site.SCALA_BINARY_VERSION}}. You will need to use a
compatible Scala version
({{site.SCALA_BINARY_VERSION}}.x).
-Note that support for Java 7 was removed as of Spark 2.2.0.
+Note that support for Java 7, Python 2.6 and old Hadoop versions before
2.6.5 were removed as of Spark 2.2.0.
--- End diff --
It sounds like 2.6 is still more supported than not-support in 2.2.x, but
we should call it unsupported for 2.3.x.
Let's say that Python 2.6 support was really _removed_ for 2.3.0, rather
than 2.2.0.
It's fine to add a note about Hadoop before 2.6 being unsupported in 2.2.0,
that's true.
Then we can merge in master. It's not essential to merge this for 2.2 as
the existing text appears to be not-wrong.
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