# Document History
<a name="whats-new"></a>

The following table describes the important changes to the documentation since the last release of the *AWS Flow Framework for Java Developer Guide*.
+ **API version:** 2012-01-25
+ **Latest documentation update:** June 25, 2018


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| Change | Description | Date Changed | 
| --- | --- | --- | 
|  Update  |  Fixed an error in the `backoffCoefficient` description for `@ExponentialRetry`. See [@ExponentialRetry](annotations.md#annotations-exponentialretry).  | June 25, 2018 | 
|  Update  |  Cleaned up the code examples throughout this guide.  | June 5, 2017 | 
|  Update  |  Simplified and improved the organization and contents of this guide.  | May 19, 2017 | 
|  Update  |  Simplified and improved the [Making Changes to Decider Code: Versioning and Feature Flags](java-flow-making-changes-decider-code.md) section.  | April 10, 2017 | 
|  Update  |  Added the new [Best Practices](java-flow-best-practices.md) section with new guidance on making changes to decider code.  | March 3, 2017 | 
|  New feature  |  You can specify Lambda tasks in addition to traditional Activity tasks in your workflows. For more information, see [Implementing AWS Lambda Tasks](lambda-task.md).  |  July 21, 2015  | 
|  New feature  |  Amazon SWF includes support for setting the task priority on a task list, attempting to deliver the tasks with a higher priority before tasks with lower priority. For more information, see [Setting task priority in Amazon SWF](programming-priority.md).  |  December 17, 2014  | 
|  Update  |  Made updates and fixes.  |  August 1, 2013  | 
|  Update  |  [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/amazonswf/latest/awsflowguide/whats-new.html)  |  June 28, 2013  | 
|  New feature  |  The initial release of the AWS Flow Framework for Java.  |  February 27, 2012  |