fix(aws-cdk-lib): feature flag report contains unnecessary flags#35227
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mergify[bot] merged 4 commits intomainfrom Aug 13, 2025
Merged
fix(aws-cdk-lib): feature flag report contains unnecessary flags#35227mergify[bot] merged 4 commits intomainfrom
mergify[bot] merged 4 commits intomainfrom
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The feature flag report generated by the core library includes flags that: - Are not configurable for CDKv2 anymore - Whose default value is the same as the recommended value (i.e., they don't need to be configured at all). At the same time, the `recommended-feature-flags.json` file does NOT contain those flags, because they aren't necessary. This means that a newly `cdk init`ed application reports that 18 flags are unconfigured by the user, producing unnecessary warnings. Instead, don't write all flags to the report, but only report on those flags that have a legitimately interesting value.
aws-cdk-automation
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Aug 13, 2025
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mrgrain
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Aug 13, 2025
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rix0rrr
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Aug 13, 2025
The flags nag message is too pessimistic, showing 18 unconfigured flags on a newly cdk inited project. * Part of that is the CDK library emitting info for flags that don't exist anymore, fixed here: aws/aws-cdk#35227 * Part of that is we are alarming on unconfigured flags, even if the behavior of unconfigured flags is the same as recommended behavior. We shouldn't alarm on the latter, so filter them out.
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The feature flag report generated by the core library includes flags that:
At the same time, the
recommended-feature-flags.jsonfile does NOT contain those flags, because they aren't necessary.This means that a newly
cdk inited application reports that 18 flags are unconfigured by the user, producing unnecessary warnings.We will address this in 2 parts.
By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license