Amazon ECR Pull Through Cache Now Supports Referrer Discovery and Sync
News
This article announces that Amazon ECR's pull through cache now automatically discovers and syncs OCI referrers from upstream registries.
- Automatically discovers and syncs image signatures, SBOMs, and attestations from upstream registries
- Previously required manual listing and fetching of upstream referrers
- Enables end-to-end image signature verification without client-side workarounds
- Supports seamless SBOM discovery and attestation retrieval workflows
- Available in all AWS Regions supporting Amazon ECR pull through cache
This enhancement simplifies container image management by automating referrer synchronization, eliminating manual workarounds for signature verification and metadata discovery.
The AWS News Feed is currently looking for gold sponsors. If you want to support the AWS community and reach a large audience of AWS professionals, consider sponsoring the AWS News Feed.
Related articles
Mar 12
2025
2025
Amazon ECR announces ECR to ECR pull through cache
Mar 18
2026
2026
Amazon ECR now supports pull through cache for Chainguard
Jan 21
2026
2026
Amazon ECR now supports cross-repository layer sharing to optimize storage and improve push performance
Dec 19
2025
2025
Amazon ECR now supports creating repositories on push
The AWS News Feed is currently looking for silver sponsors. If you want to support the AWS community and reach a large audience of AWS professionals, consider sponsoring the AWS News Feed.