Release: AWS SDK for iOS 1.2.2

This API update adds support for the batchWrite operation.

We have released a new version of the protocol for authenticating inbound API requests to AWS Services. The new protocol, Signature Version 4, will enable AWS to support future growth and evolution of the AWS business. It introduces a specialized signing key, derived from the long-term AWS Access Key, which is used for the cryptographic signature. It also features incremental modifications in the canonicalization algorithm that streamline signature verification.

This release of the AWS SDK for iOS uses Signature Version 4 for the AWS Security Token Service.

For more information about AWS Signature Version 4, go to Signature Version 4 Signing Process in the AWS General Reference.

There is a known issue with the AmazonLogger in "verbose mode" in iOS5.1 with release builds (AdHoc/AppStore distributions). The latest version of AWS SDK for iOS has a fix and we recommend including the following code segment to prevent your app from crashing:

            #ifdef DEBUG
                [AmazonLogger verboseLogging];
            #else
                [AmazonLogger turnLoggingOff];
            #endif
        

• Bucket names can include '+' symbols in the name, but the '+' symbol does not get replaced in URL encodings and can result in spaces in bucket names instead.
• It is possible to create an object with a key which includes characters that are not valid XML characters, which will cause an error in the response to the AmazonS3Client listObjects method. Refer to http://docs.amazonwebservices.com/AmazonS3/2006-03-01/index.html?UsingKeys.html for guidelines on Amazon S3 keys.