Release: Amazon EC2 on 2010-04-28

Release Notes>Amazon EC2>Release: Amazon EC2 on 2010 04 28
Support for Asia Pacific (Singapore) Region.


Submitted By: cheriaws
Release Date: April 28, 2010 12:00 AM GMT
Latest Version: 2009-11-30
Latest WSDL:
Created On: April 27, 2010 9:21 PM GMT
Last Updated: April 29, 2010 1:08 AM GMT

New Features

New Region Amazon EC2 now supports the Asia Pacific (Singapore) Region. The new endpoint for requests to this Region is

Known Issues

Query Version of ModifyInstanceAttribute The Query API ModifyInstanceAttribute request does not allow the block-device-mappings to be modified and the user-data attribute cannot be modified if it already contains data.
Paid AMIs Backed by Amazon EBS AMIs backed by Amazon EBS are not currently supported by Amazon DevPay.
Windows AMI launch times Windows AMIs take longer to launch than Linux/UNIX instances due to larger AMI sizes and multiple reboots.
Windows AMI sizes Installing software on Amazon S3-backed Windows AMIs can cause them to become large and easily reach the 10 GB limit. Before bundling, check the size of the C:\ volume.
Limitation on drive mapping There are limitations on devices available for storage attachment. For more information, go to How to Attach the Volume to an Instance in the Amazon Elastic Compute Cloud User Guide.
Instance limit New users are limited to a maximum of 20 concurrent instances, but many of our customers use hundreds or thousands of instances. If you need a higher limit, go to
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