Amazon ECR Gets Replication Backfill for Existing Container Images
Amazon ECR now lets you replicate your entire existing image catalog to new or other destinations with a single API call, instead of manually retagging images. This feature is perfect for expanding to new AWS Regions, setting up disaster recovery, or ensuring compliance across all your container registries—and you can run up to ten backfill jobs at once.
source: [aws/whats-new]