Release: Amazon EC2 on 2009-08-26

Release Notes>Amazon EC2>Release: Amazon EC2 on 2009 08 26
This release introduces changes to Amazon EC2 to support Amazon Virtual Private Cloud.


Submitted By: Bruce@AWS
Release Date: August 26, 2009 12:00 AM GMT
Latest Version: 2009-07-15
Latest WSDL:
Created On: August 25, 2009 9:23 PM GMT
Last Updated: August 26, 2009 5:29 AM GMT

New Features

Amazon Virtual Private Cloud Amazon EC2 now supports Amazon Virtual Private Cloud, a service that lets you create isolated resources within the AWS cloud, and then connect those resources directly to your own data center using industry-standard encrypted IPsec VPN connections. For more information about the service, go to Amazon Virtual Private Cloud Product Page.


Known Issues

Windows Reserved Instances Reserved Instances are not currently available for Windows.
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 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 is currently no support for volume attachment to devices beyond /dev/sdp on instances running Linux/UNIX and xvdp on instances running Windows.
Security group limitation AuthorizeSecurityGroupIngress does not allow port ranges for group grants when using the command-line tools or the Query API. This is only supported through the SOAP API.
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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