EMR 4.0.0 in AWS Data Pipeline

I like the AWS Data Pipeline and love to start EMR clusters with it. Unfortunately it’s currently not possible to use the EMR-4.0.0 release when starting a EMR cluster using the pipeline. You currently just find the amiVersion option in the EmrCluster options. Which is bad if you like to use a Hadoop version greater than 2.4.0. This is not supported in the highest amiVersion 3.9.0.

This is the most up-to-date configuration you can get:

"hadoopVersion": "2.4.0",
"amiVersion": "3.9.0"

What does Amazon says to this? I just found this comment in the forum:

currently emr-4.0.0 is not supported on Datapipeline, we are working on it but at the moment I cannot provide and ETA on this.

Amazon Micro Instances

Micro instances provide 613 MB of memory and support 32-bit and 64-bit platforms on both Linux and Windows. Micro instance pricing for On-Demand instances starts at $0.02 per hour for Linux and $0.03 per hour for Windows.
Customers have asked us for a lower priced instance type that could satisfy the needs of their less demanding applications. Micro instances are optimized for applications that require lower throughput, but which still may consume significant compute cycles periodically. Micro instances provide a small amount of consistent CPU resources, and also allow you to burst CPU capacity when additional cycles are available.
(via Amazon)