Amazon ECR now supports IPv6 for both private and public registries, enabling users to pull container images over IPv6 using AWS SDK or Docker/OCI CLI.
The new dual-stack endpoints automatically resolve to IPv4 or IPv6 addresses based on client/network configuration, simplifying transitions away from NAT-based networking.
IPv6 support offers virtually unlimited IP addresses, improved routing efficiency, easier scaling across container fleets, and better compatibility with modern cloud-native tools.
To get started, users need to update their endpoint URL, ensure IPv6 compatibility in their VPC/network, and continue using Docker/OCI CLI or AWS SDK without changes in command syntax.