Release: AWS SDK for .NET 1.4.11

IAM Instance Profiles allow you to securely deliver AWS credentials directly to your Amazon EC2 instances. You can use the updated IAM API, the AWS Management Console, or AWS Toolkit for Visual Studio to create IAM Instance Profiles, then launch instances using that profile to have your AWS credentials securely distributed to the Amazon EC2 instances running your application.

The AWS SDKs make it easy to access the IAM Instance Profile credentials distributed through your EC2 instances. See below for more information on the new SDK client constructors and credentials objects.

The Amazon EC2 and Auto Scaling APIs have also been updated so that you can launch instances or create Auto Scaling groups that take advantage of the new, easy to use, credentials distributions feature.

Each client in the AWS SDK for .NET now includes a default constructor to make it even easier to work with the SDK. The default constructors use fallback mechanism that searches for your AWS credentials first in app.config (or web.config), then tries to retrieve the credentials from the IAM Instance Profile, if one is available.

Developers can now take advantage of reduced prices for Amazon EC2 Spot instances from their Auto Scaling groups.

The latest API update to Amazon S3 allows you to specify custom Access Control Lists (ACLs) when you upload objects. Previously you could specify a generic CannedAccessControlList at the same time as uploading an object, but the latest API update allows you to specify any custom ACL to be applied immediately when your object is uploaded.

The latest update to the Amazon RDS API adds support for option groups. Option groups are currently supported only for the Oracle DB engine. The first option to be supported is Oracle Enterprise Manager Database Control.

For more information, see the full release notes.

The latest update to the Amazon EC2 API allows you to export Windows Server instances that you originally imported into EC2, and adds timestamps to instance status and system status to indicate the date and time that a status check failed.

For more information, see the full release notes.

The constants for Hive versions in Amazon.ElasticMapReduce.Model.StepFactory.HiveVersion has been updated to include all the latest versions supported by Amazon Elastic MapReduce.

A helper function, AmazonStorageGatewayUtil.GetActivationKey, has been added to assist with retrieval of an activation key for a storage gateway given the gateway's address. The default implementation retries for 5 times with a maximum wait between attempts of 30 seconds. An override allows you to specify a custom number of retries and maximum wait period.