1{ 2 "date": "2019-04-01", 3 "version": "2.5.21", 4 "entries": [ 5 { 6 "category": "Amazon Elastic MapReduce", 7 "type": "feature", 8 "description": "Amazon EMR adds the ability to modify instance group configurations on a running cluster through the new \"configurations\" field in the ModifyInstanceGroups API." 9 }, 10 { 11 "category": "Amazon Simple Systems Manager (SSM)", 12 "type": "feature", 13 "description": "March 2019 documentation updates for Systems Manager." 14 } 15 ] 16}