Amazon ECR adds the ability to replicate individual repositories to other regions and accounts

Today, Amazon Elastic Container Registry (ECR) launched the ability to replicate specific repositories to accounts or regions, and see when images were replicated through the ECR API. This gives you granular control to replicate images within repositories you want, instead of replicating all images in a registry, and the ability to automate actions through the new DescribeImageReplicationStatus API whenever images are replicated.

Source:: Amazon AWS