docs: update changelog

Author: sberss

CHANGELOG.md

@@ -30,6 +30,11 @@ Resolved a hotspot in Cromwell to make the `size()` engine function perform much
 The `IX_WORKFLOW_STORE_ENTRY_WS` index is removed from `WORKFLOW_STORE_ENTRY`.
 
 The index had low cardinality and workflow pickup is faster without it. Migration time depends on workflow store size, but should be very fast for most installations. Terminal workflows are removed from the workflow store, so only running workflows contribute to the cost.
+||||||| parent of 3b90b0e29 (docs: update changelog)
+
+### AWS ECR Remote Hashing Support
+
+Cromwell now supports remote hashing for both public and private AWS ECR containers.
 
 ## 87 Release Notes