Amazon EC2 now supports specifying compatible instance types on AMIs

Amazon EC2 has introduced a feature enabling AMI owners to specify which instance types are compatible with their AMIs. Owners can define supported or unsupported instance types, and any attempt to launch on a restricted type is automatically blocked. This provides a built-in mechanism to avoid failed launches due to incompatible pairings. The feature is available across all AWS Regions without additional cost.

The new capability allows AMI owners to enforce compatibility rules directly within their AMIs. By default, AMIs remain unrestricted, ensuring existing workflows continue to function without disruption. Owners can now proactively prevent launches on instances that may not support their AMIs, reducing operational overhead. This feature is accessible in all AWS Regions at no extra charge.

AMI owners can now explicitly define compatibility constraints for their AMIs, improving launch reliability. Unsupported instance types are automatically rejected, preventing configuration errors before they occur. The feature integrates seamlessly with existing EC2 workflows, requiring no changes to current processes. It is available globally and does not incur additional fees.

The update addresses a longstanding need for stricter control over instance-AMI compatibility in EC2. Owners can now set rules to block launches on unsupported instance types, reducing the risk of failed deployments. The feature maintains backward compatibility by leaving existing AMIs unrestricted by default. Documentation is available for users to implement these restrictions as needed.