usher

## 0.1.0 (May 17, 2014) + Initial release ## 0.1.1 (June 18, 2014) + Update repository location in package.json ## 0.1.2 (June 18, 2014) + Enable input transformation via custom function for tasks via `transform` option ## 0.1.3 (June 18, 2014) + Moved `aws-sdk` lib to be in `peerDependencies` so that global AWS config can be inherited from parent project ## 0.2.0 (June 23, 2014) + Child Workflow Support + Looping Support + Small internal API refactor in support of above features ## 0.2.1 (July 24, 2014) + Updating to latest `aws-swf` dependency to support v2.x of the `aws-sdk` library ## 0.2.2 (Sept 3, 2014) + Resolved an uncaught exception when certain tasks failed ## 0.2.3 (Sept 9, 2014) + Support for Activity / Workflow options being functions that are evaluated within the context of the activities / workflows input ## 0.3.0 (Sept 19, 2014) ** WARNING: This release introduced breaking API changes in support of proper version handling of workflows ** + Expanding scope of Usher to include the ability to manage Activities as well as Deciders + Full version support for Activities and Deciders using [semver](http://semver.org/) v2.0 + This means that deciders / activities can be configured to match explicit or ranges of versions (think NPM module versions) ## 0.3.1 (Jan 6, 2015) + Implemented configurable batch scheduling logic for loops. Defaults to processing `20` items per batch with a `1` second Timer scheduled between batches. This is designed to mitigate `CHILD_CREATION_RATE_EXCEEDED` and `ACTIVITY_CREATION_RATE_EXCEEDED` exceptions seen in larger workflows. + Better handling of failure states in `loop` decisions. ## 0.3.2 (Jan 14, 2015) + Adding Marker event recording the current decider state when a decision can't be made. + Additional test cases for loops ## 0.3.3 (Jan 16, 2015) + Added additional debug logging ## 0.4.0 (Apr 3, 2015) + Added `whileLoop` decision type: loop over a fragment until a done condition is met ## 0.4.1 (Apr 5, 2015) + Support for nesting loops within each other. Nesting should be shallow (Ideally < 3 levels deep). ## 0.5.0 (Apr 8, 2015) + Adding `variable` decision type: allows storing values for future activities to use. + Resolved async bug in `loop` decisions where the state of the loop could have been evaluated before all task had completed. ## 0.5.1 (Apr 9, 2015) + Adding `ignoreFailures` option to child workflow task ## 0.5.2 / 0.5.3 (Apr 9, 2015) + Resolved issue when using batches in long loops + Updated aws-sdk to latest version ## 0.5.4 (Apr 13, 2015) + Resolved a potential race condition in workflow execution ## 0.6.0 (Jun 4, 2015) + Adding `register` method to both activities and workflows + Updated dependencies to latest versions ## 0.6.1 (July 7, 2015) + Fixing `undefined` error when starting and stopping pollers quickly, such as in unit tests ## 0.6.2 (July 14, 2015) + Allowing access to the raw `context` in transform and variable tasks ## 0.6.3 (Sept 21, 2015) + Updated dependencies to latest versions to resolve a race condition when using loops ## 0.6.4 (Nov 5, 2015) + Added `execute` method to Workflow as a utility method for finding the correct version and starting a workflow execution ## 0.6.5 (Nov 9, 2015) + Added support for tags in `execute` method + Updated default timeouts for `execute` method + Variable tasks will no longer set a marker if the value did not change ## 0.6.6 (Nov 9, 2015) + Resolved an issue when using a function in a tagList ## 0.6.7 (Nov 19, 2015) + Resolved an issue where calling execute on a workflow would not work + Pass through default options when executing workflows ## 0.7.0 (Nov 24, 2015) + Removing NPM shrinkwrap from module as best practices are to not include with libs ## 0.7.1 (Nov 24, 2015) + Adding defaults for `scheduleToStartTimeout`, `scheduleToCloseTimeout`, `startToCloseTimeout`, and `heartbeatTimeout` ## 0.8.0 (Feb 10, 2016) + Added `accumulator` decision type: accumulate the results of iterations of a fragment + Expand `Context.didChildWorkflowFail` to include timeout events + Added support for `maxOutstanding` flag on `loop` decisions ## 0.8.1 (Feb 10, 2016) + Expand `Context.didActivityFail` to include timeout events ## 0.8.2 (Feb 11, 2016) + Lodash 4.x compatibility changes ## 0.8.3 (Feb 11, 2016) + Cleanup some debug logging ## 0.8.4 (Feb 12, 2016) + Added `result` decision type so you can customize the output of a workflow. + Added `previousResult` variable to `accumulator` fragment input so patterns such as paging can be implemented. ## 0.8.5 (Feb 14, 2016) + Minor change to how variables are recorded in markers. ## 0.9.0 (Apr 6, 2016) + Performance increases for large workflows + Partial migration away from `aws-swf` library ## 0.10.0 (July 25, 2016) + Support for heartbeats on long running activities ## 0.10.1 (July 29, 2016) + Support for dynamic activity execution in a decider ## 0.10.2 (July 29, 2016) + Exposing raw, un-transformed input to options like 'taskList', 'activityType', etc. ## 0.10.3 (Aug 1, 2016) + Fixed regression in child workflow execution where they stopped getting input + Expanded test suite to ensure this does not happen again ## 0.10.4 (Aug 5, 2016) + Better handling of uncaught exceptions in activities ## 0.10.6 (Aug 8, 2016) + Support for dynamic child workflow execution in a decider ## 0.10.7 (Aug 8, 2016) + Support for latest AWS lib