diff --git a/README.md b/README.md
index 9b2c1a9c4dc12d786b1f75c768597c86d95b867f..8502410c52cc159062cecf555c126571349a412d 100644
--- a/README.md
+++ b/README.md
@@ -48,7 +48,7 @@ Hadoop, you must build Spark against the same version that your cluster runs.
 You can change the version by setting the `SPARK_HADOOP_VERSION` environment
 when building Spark.
 
-For Apache Hadoop versions 1.x, 0.20.x, Cloudera CDH MRv1, and other Hadoop
+For Apache Hadoop versions 1.x, Cloudera CDH MRv1, and other Hadoop
 versions without YARN, use:
 
     # Apache Hadoop 1.2.1
diff --git a/docs/building-with-maven.md b/docs/building-with-maven.md
index d71d94fa63c3db57b88d2794d972c32749ad2940..a9f2cb8a7ae1828401b9e8998d81a61070a0b396 100644
--- a/docs/building-with-maven.md
+++ b/docs/building-with-maven.md
@@ -12,7 +12,7 @@ Building Spark using Maven Requires Maven 3 (the build process is tested with Ma
 
 To enable support for HDFS and other Hadoop-supported storage systems, specify the exact Hadoop version by setting the "hadoop.version" property. If unset, Spark will build against Hadoop 1.0.4 by default.
 
-For Apache Hadoop versions 1.x, 0.20.x, Cloudera CDH MRv1, and other Hadoop versions without YARN, use:
+For Apache Hadoop versions 1.x, Cloudera CDH MRv1, and other Hadoop versions without YARN, use:
 
     # Apache Hadoop 1.2.1
     $ mvn -Dhadoop.version=1.2.1 clean install
diff --git a/project/SparkBuild.scala b/project/SparkBuild.scala
index 81080741ca928a258e990f029c0ca184a323bd04..cc09bf7dd2ac3a9ae36b638dc2c54df92346cfda 100644
--- a/project/SparkBuild.scala
+++ b/project/SparkBuild.scala
@@ -24,10 +24,9 @@ import AssemblyKeys._
 //import com.jsuereth.pgp.sbtplugin.PgpKeys._
 
 object SparkBuild extends Build {
-  // Hadoop version to build against. For example, "0.20.2", "0.20.205.0", or
-  // "1.0.4" for Apache releases, or "0.20.2-cdh3u5" for Cloudera Hadoop.
-  // Note that these variables can be set through the environment variables
-  // SPARK_HADOOP_VERSION and SPARK_WITH_YARN.
+  // Hadoop version to build against. For example, "1.0.4" for Apache releases, or
+  // "2.0.0-mr1-cdh4.2.0" for Cloudera Hadoop. Note that these variables can be set
+  // through the environment variables SPARK_HADOOP_VERSION and SPARK_WITH_YARN.
   val DEFAULT_HADOOP_VERSION = "1.0.4"
   val DEFAULT_WITH_YARN = false