chore(release): 2.252.0 (#37727)

See [CHANGELOG](https://github.com/aws/aws-cdk/blob/bump/2.252.0/CHANGELOG.md)

Author: mergify[bot]

.github/workflows/pr-issue-check.yml

@@ -0,0 +1,24 @@
+name: PR Issue Reference Check
+on:
+  pull_request_target:
+    types: [opened, edited, reopened]
+
+jobs:
+  check-issue-reference:
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: write
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+      - name: Install type dependencies
+        run: yarn install --frozen-lockfile
+      - name: Compile TypeScript
+        run: npx tsc --project scripts/tsconfig.pr-issue-check.json
+      - name: Check PR description for issue reference
+        uses: actions/github-script@v9
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          script: |
+            const { prIssueCheck } = require('./scripts/pr-issue-check.js');
+            await prIssueCheck({ github, context, core });

CHANGELOG.v2.alpha.md

@@ -2,6 +2,8 @@
 
 All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
 
+## [2.252.0-alpha.0](https://github.com/aws/aws-cdk/compare/v2.251.0-alpha.0...v2.252.0-alpha.0) (2026-04-29)
+
 ## [2.251.0-alpha.0](https://github.com/aws/aws-cdk/compare/v2.250.0-alpha.0...v2.251.0-alpha.0) (2026-04-24)
 
 

CHANGELOG.v2.md

@@ -2,6 +2,20 @@
 
 All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
 
+## [2.252.0](https://github.com/aws/aws-cdk/compare/v2.251.0...v2.252.0) (2026-04-29)
+
+
+### Features
+
+* **core:** `Validations` class now supports `addWarning`, `addError`, and `acknowledge` ([#37668](https://github.com/aws/aws-cdk/issues/37668)) ([5e8083c](https://github.com/aws/aws-cdk/commit/5e8083c79f2657fe2364a31ed3f26d0d88638920)), closes [aws/aws-cdk-rfcs#899](https://github.com/aws/aws-cdk-rfcs/issues/899)
+* **core:** add Box API for deferred values with accurate stack traces ([#37604](https://github.com/aws/aws-cdk/issues/37604)) ([d592a96](https://github.com/aws/aws-cdk/commit/d592a969caf30c2f62df99c9a269722ae528cd65))
+
+
+### Bug Fixes
+
+* **aws-cdk-lib:** cannot be used as a `bundledDependency` ([#37726](https://github.com/aws/aws-cdk/issues/37726)) ([6ba0598](https://github.com/aws/aws-cdk/commit/6ba0598d0b1a099db9c74723ac2567cc947ad802)), closes [#37717](https://github.com/aws/aws-cdk/issues/37717)
+* **s3:** resolve S3 notification removal race condition ([#37708](https://github.com/aws/aws-cdk/issues/37708)) ([dc5be98](https://github.com/aws/aws-cdk/commit/dc5be981a9568a4bb60e47ec9106696650f0bfc8)), closes [#37667](https://github.com/aws/aws-cdk/issues/37667)
+
 ## [2.251.0](https://github.com/aws/aws-cdk/compare/v2.250.0...v2.251.0) (2026-04-24)
 
 

package.json

@@ -28,9 +28,9 @@
     "fs-extra": "^9.1.0",
     "graceful-fs": "^4.2.11",
     "jest-junit": "^13.2.0",
-    "jsii-diff": "1.127.0",
-    "jsii-pacmak": "1.127.0",
-    "jsii-reflect": "1.127.0",
+    "jsii-diff": "1.128.0",
+    "jsii-pacmak": "1.128.0",
+    "jsii-reflect": "1.128.0",
     "jsii-rosetta": "~5.9.32",
     "lerna": "^8.2.4",
     "nx": "^20",