diff --git a/docs/content/Booting-a-production-cluster.md b/docs/content/Booting-a-production-cluster.md
index dde733eac78..cbd072451bb 100644
--- a/docs/content/Booting-a-production-cluster.md
+++ b/docs/content/Booting-a-production-cluster.md
@@ -12,6 +12,8 @@ You can provision individual servers, loading Druid onto each machine (or buildi
 
 [Apache Whirr](http://whirr.apache.org/) is a set of libraries for launching cloud services. For Druid, Whirr serves as an easy way to launch a cluster in Amazon AWS by using simple commands and configuration files (called *recipes*).
 
+**NOTE:** Whirr will install Druid 0.5.x. At this time Whirr can launch Druid 0.5.x only, but in the near future will support Druid 0.6.x.
+
 You'll need an AWS account, and an EC2 key pair from that account so that Whirr can connect to the cloud via the EC2 API. If you haven't generated a key pair, see the [AWS documentation](http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-key-pairs.html) or see this [Whirr FAQ](http://whirr.apache.org/faq.html#how-do-i-find-my-cloud-credentials).