Bump Amazon.CDK.Lib from 2.254.0 to 2.257.0

[dependabot]

Updated Amazon.CDK.Lib from 2.254.0 to 2.257.0.

Release notes

Sourced from Amazon.CDK.Lib's releases.

2.257.0

⚠ BREAKING CHANGES

• ** L1 resources are automatically generated from public CloudFormation Resource Schemas. They are built to closely reflect the real state of CloudFormation. Sometimes these updates can contain changes that are incompatible with previous types, but more accurately reflect reality. In this release we have changed:

  • aws-neptunegraph: AWS::NeptuneGraph::GraphSnapshot: GraphIdentifier property is now required.

Features

• update L1 CloudFormation resource definitions (#​37955) (211b06c)
• core: failSynthOnValidationErrors context key to suppress console output and exit code (#​37909) (deb968f), closes aws/aws-cdk-cli#​1515

---

Alpha modules (2.257.0-alpha.0)

2.256.1

Bug Fixes

• invalid lock file (#​37943) (73ae91d), closes #​37726 #​37929 #​37870

---

Alpha modules (2.256.1-alpha.0)

2.256.0

Features

• aws-cdk-lib: emits performance counters if synthesis is slow (#​37919) (caa0f4c), closes #​37843
• core: validations report is always written to cloud assembly (#​37867) (dddc6e0)
• ec2: replace any return types with specific interfaces in IPeer methods (#​36637) (626e44d), closes #​36636
• s3: support bucketNamePrefix and bucketNamespace properties (#​37386) (997b003), closes #​37760

Bug Fixes

• core: handle token-wrapped Boxes in property merge strategies (#​37902) (18435e3)
• core: prevent stack overflow on large construct trees (#​37901) (10163cb), closes #​37903

---

Alpha modules (2.256.0-alpha.0)

2.255.0

Features

• aws-cdk-lib: emits performance counters if synthesis is slow (#​37843) (ea33967)
• bedrockagentcore: graduate to stable 🚀 (#​37876) (00cf601)
• core: builtin PropertyMergeStrategys are now compatible with deferred Box values (#​37844) (ca4b722)
• core: persist asset fingerprinting cache (#​37822) (605a776)
• ec2: add C8A instance type support (#​36736) (0d088ca), closes #​36722

Bug Fixes

• core: cached Lazys use the Box API internally (#​37889) (464fa3d)
• core: default stack trace size adds unnecessary overhead (#​37827) (0b1fb2b)
• core: share a single IAM role across cross-account Fn::GetStackOutput consumers (#​37871) (fee8b90)
• dynamodb: remove deprecated scope for stream grants (#​36680) (570d552), closes #​36289
• iam: validate PolicyStatement SID is alphanumeric for identity policies (#​36150) (a7edd72), closes #​34819 #​34828 #​34819

---

Alpha modules (2.255.0-alpha.0)

Features

• bedrock-agentcore-alpha: Graduation of the library to stable. The Policy submodule is the only submodule that remains in alpha. All other constructs have graduated to stable in aws-cdk-lib/aws-bedrockagentcore and we recommend migrating to the stable versions (#​37876) (00cf601)

Commits viewable in compare view.

[BadMagic100]

@dependabot rebase

[github-actions]

Diff for stage: DefaultStage

Diff for stack: RandoSettingsManager - 0 to add, 0 to update, 0 to destroy ✅

Details

Resources
[~] AWS::Lambda::Function SettingsManagerLambda20D6B9D8
 └─ [~] Code
     └─ [~] .S3Key:
         ├─ [-] 0b1f4254a3a5cdc2b79453b08ed15b1c053cbbe306c8bde88144e47adcd00e0d.zip
         └─ [+] 9e74d339905d8deca4b0823d94c69d563b75723dc4ff2af73b46071640344668.zip

Generated for commit c08b615 at 2026-05-24T15:20:56.364Z