• WDL: (WDL >= 1.1) Fix for nested workflows when compiled in the unlocked mode: optional inputs with None as default are coerced correctly.
• CWL: Fix for merging optional source inputs. If an input is a collection (e.g. an array), where some items are the type of "null", it is correctly merged when MultipleInputFeatureRequirement is specified.
• CWL: Fix for making target step argument for cwltool.
• CWL: Added support for "metadata" field for input files in CWL under development (pending inclusion in CWL standard).
• CWL: fix casting cwl types from scatter to scatter.
• CWL: Fix for parameter mapping for output stage of the workflow.