.changes/2.5.x/2.5.21.json

{
    "date": "2019-04-01",
    "version": "2.5.21",
    "entries": [
        {
            "category": "Amazon Elastic MapReduce",
            "type": "feature",
            "description": "Amazon EMR adds the ability to modify instance group configurations on a running cluster through the new \"configurations\" field in the ModifyInstanceGroups API."
        },
        {
            "category": "Amazon Simple Systems Manager (SSM)",
            "type": "feature",
            "description": "March 2019 documentation updates for Systems Manager."
        }
    ]
}