Release: AWS SDK for .NET 1.4.4

This release adds asynchronous suppport to the Amazon DynamoDB, Auto Scaling, AWS CloudFormation, Amazon CloudWatch, Amazon ElastiCache, AWS Elastic Beanstalk, Elastic Load Balancing, Amazon Elastic MapReduce, AWS Identity and Access Management, AWS Import/Export, Amazon Relational Database Service, AWS Route 53, AWS Security Token Service, Amazon Simple Email Service and Amazon Simple Workflow Service .NET clients.

Here is a sample of making asynchronous calls, in this example to Amazon DynamoDB:

IAsyncResult asyncResult = client.BeginGetItem(new GetItemRequest
{
    TableName = "Books",
    Key = new Key { HashKeyElement = new AttributeValue { S = "Sample Book" } }
}, null, null);

// do work

var item = client.EndGetItem(asyncResult).GetItemResult.Item;

With the AWS Identity and Access Management client you can now define IAM user password policies, control required password length and complexity, and programmatically change IAM user passwords.

Here is a sample showing the basic operations with password policies:

// set restrictive policy
client.UpdateAccountPasswordPolicy(new UpdateAccountPasswordPolicyRequest
{
    RequireNumbers = true,
    RequireSymbols = true,
    MinimumPasswordLength = 12,
    RequireLowercaseCharacters = true,
    RequireUppercaseCharacters = true
});

// retrieve policy
var policy = client.GetAccountPasswordPolicy().GetAccountPasswordPolicyResult.PasswordPolicy;

// delete policy
client.DeleteAccountPasswordPolicy();

For further information see the AWS Identity and Access Management release notes.

This release adds a way to configure the number of HTTP connections that are used by the .NET clients.

The below code shows how to set the connection limit to a different value, for a specific client and globally:

// sets a limit that applies only to this client
AmazonDynamoDBConfig config = new AmazonDynamoDBConfig
{
    ConnectionLimit = 10
};
AmazonDynamoDBClient client = new AmazonDynamoDBClient(config);

// sets a limit applies to all clients, EXCEPT the client we created earlier
ServicePointManager.DefaultConnectionLimit = 25;

Note that if a configuration object isn't specified for a client and if ServicePointManager.DefaultConnectionLimit isn't updated, the SDK will default to a limit of 50 connections.