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feat(cloudfront-origins): use dual-stack ip address type by default for lambda function url origin (under feature flag)#35754

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badmintoncryer wants to merge 36 commits intoaws:mainfrom
badmintoncryer:feat/cloudfront-origins-dualstack-default-35450
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feat(cloudfront-origins): use dual-stack ip address type by default for lambda function url origin (under feature flag)#35754
badmintoncryer wants to merge 36 commits intoaws:mainfrom
badmintoncryer:feat/cloudfront-origins-dualstack-default-35450

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Issue # (if applicable)

Closes #35450.

Reason for this change

CloudFront recently launched support for IPv6 origins.

Lambda function URL's are by default dual stack.

It is better to update default behavior of IP address type settings from IPV4 to Dualstack.

Description of changes

  • add feature flag @aws-cdk/aws-cloudfront-origins:functionUrlOriginDualStackDefault
  • update default value of lambda function url origin IP address type
    • with / without OAC

Describe any new or updated permissions being added

None

Description of how you validated changes

Add both unit and integ tests.

Checklist


By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license

@aws-cdk-automation aws-cdk-automation requested a review from a team October 15, 2025 13:59
@github-actions github-actions bot added effort/medium Medium work item – several days of effort feature-request A feature should be added or improved. p2 distinguished-contributor [Pilot] contributed 50+ PRs to the CDK labels Oct 15, 2025
@badmintoncryer badmintoncryer marked this pull request as draft October 15, 2025 14:01
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(This review is outdated)

@badmintoncryer badmintoncryer marked this pull request as ready for review October 15, 2025 14:28
@aws-cdk-automation aws-cdk-automation dismissed their stale review October 15, 2025 14:30

✅ Updated pull request passes all PRLinter validations. Dismissing previous PRLinter review.

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@mazyu36 mazyu36 left a comment

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LGTM overall.
Could you please address the failing CI checks?

@aws-cdk-automation aws-cdk-automation removed the pr/needs-community-review This PR needs a review from a Trusted Community Member or Core Team Member. label Feb 12, 2026
@badmintoncryer
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@mazyu36 Thanks always! I've fixed CI failure.

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Thanks. LGTM.

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This PR cannot be merged because it has conflicts. Please resolve them. The PR will be considered stale and closed if it remains in an unmergeable state.

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@aws-cdk-automation
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This PR cannot be merged because it has conflicts. Please resolve them. The PR will be considered stale and closed if it remains in an unmergeable state.

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This PR cannot be merged because it has conflicts. Please resolve them. The PR will be considered stale and closed if it remains in an unmergeable state.

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This PR cannot be merged because it has conflicts. Please resolve them. The PR will be considered stale and closed if it remains in an unmergeable state.

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This PR cannot be merged because it has conflicts. Please resolve them. The PR will be considered stale and closed if it remains in an unmergeable state.

@aws-cdk-automation aws-cdk-automation added the pr/needs-maintainer-review This PR needs a review from a Core Team Member label Feb 20, 2026
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distinguished-contributor [Pilot] contributed 50+ PRs to the CDK effort/medium Medium work item – several days of effort feature-request A feature should be added or improved. p2 pr/needs-maintainer-review This PR needs a review from a Core Team Member

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(aws-cloudfront-origins): Default Lambda Function URL Origins To Dual Stack IPv4/IPv6

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