diff --git a/CHANGELOG.v2.alpha.md b/CHANGELOG.v2.alpha.md
index 5c8c1812ffff2..a29633a145120 100644
--- a/CHANGELOG.v2.alpha.md
+++ b/CHANGELOG.v2.alpha.md
@@ -2,6 +2,32 @@
 
 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.
 
+## [2.55.0-alpha.0](https://github.com/aws/aws-cdk/compare/v2.54.0-alpha.0...v2.55.0-alpha.0) (2022-12-14)
+
+
+### ⚠ BREAKING CHANGES TO EXPERIMENTAL FEATURES
+
+* **appsync:** `DataSource.createResolver`,
+`DataSource.createFunction`, and `GraphQlApi.createResolver` now require
+2 arguments instead of 1.
+* **appsync:** Renames `Schema` to `SchemaFile` that implements `ISchema`. Removes all `addXxx` type methods from `GraphQlApi`.
+
+### Features
+
+* **aws-lambda-python:** add command hooks for bundling to allow for execution of custom commands in the build container ([#23330](https://github.com/aws/aws-cdk/issues/23330)) ([d3d071f](https://github.com/aws/aws-cdk/commit/d3d071f51fab61ae0e484f143e68e698bba48537))
+* **gamelift:** add GameSessionQueue L2 Construct for GameLift ([#23266](https://github.com/aws/aws-cdk/issues/23266)) ([1ded644](https://github.com/aws/aws-cdk/commit/1ded64430d8258f6666743e245ef5ac31ed4bf0b))
+
+
+### Bug Fixes
+
+* **appsync:** unexpected resolver replacement ([#23322](https://github.com/aws/aws-cdk/issues/23322)) ([6dc15d4](https://github.com/aws/aws-cdk/commit/6dc15d40764dc71fe6a3b70691f586e96cdcf730)), closes [#13269](https://github.com/aws/aws-cdk/issues/13269)
+* **servicecatalogappregistry:** synth error when associating a nested stack ([#23248](https://github.com/aws/aws-cdk/issues/23248)) ([30301d9](https://github.com/aws/aws-cdk/commit/30301d9e5ab4af86c5e48a5ad47013924acdfed7))
+
+
+### Miscellaneous Chores
+
+* **appsync:** removes codefirst schema generation ([#23250](https://github.com/aws/aws-cdk/issues/23250)) ([2bd1e41](https://github.com/aws/aws-cdk/commit/2bd1e4184aea054766f7872b300b960b2b83ef06))
+
 ## [2.54.0-alpha.0](https://github.com/aws/aws-cdk/compare/v2.53.0-alpha.0...v2.54.0-alpha.0) (2022-12-07)
 
 
diff --git a/CHANGELOG.v2.md b/CHANGELOG.v2.md
index 7d1c717b12a8d..749c6d22c522f 100644
--- a/CHANGELOG.v2.md
+++ b/CHANGELOG.v2.md
@@ -2,6 +2,33 @@
 
 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.
 
+## [2.55.0](https://github.com/aws/aws-cdk/compare/v2.54.0...v2.55.0) (2022-12-14)
+
+
+### Features
+
+* **autoscaling:** support default instance warmup for Auto Scaling groups ([#23285](https://github.com/aws/aws-cdk/issues/23285)) ([3f706e2](https://github.com/aws/aws-cdk/commit/3f706e2210fb1ffe2b70e27862a17594c3337800))
+* **cfnspec:** cloudformation spec v101.0.0 ([#23294](https://github.com/aws/aws-cdk/issues/23294)) ([3951f09](https://github.com/aws/aws-cdk/commit/3951f09fb370b74936f3fb45e7188ac6c7343b67))
+* **cognito:** add new AdvancedSecurityMode property ([#23261](https://github.com/aws/aws-cdk/issues/23261)) ([9cc9bd3](https://github.com/aws/aws-cdk/commit/9cc9bd34a9d67e7e072292e20aeb9e003e55f158))
+* **core:** add volumes-from option to docker run command for bundling ([#22829](https://github.com/aws/aws-cdk/issues/22829)) ([813c2f1](https://github.com/aws/aws-cdk/commit/813c2f17b6c0f1056ed43a8a93f4cffbe9ae9736)), closes [#8799](https://github.com/aws/aws-cdk/issues/8799) [#21660](https://github.com/aws/aws-cdk/issues/21660)
+* **s3:** update runtime of notifications-handler to python3.9  ([#23209](https://github.com/aws/aws-cdk/issues/23209)) ([b2d293d](https://github.com/aws/aws-cdk/commit/b2d293d3f8d36547d8cfd7ff3957428718c3827f))
+* **s3-deployment:** add additional sources with `addSource` ([#23321](https://github.com/aws/aws-cdk/issues/23321)) ([b34d0b7](https://github.com/aws/aws-cdk/commit/b34d0b7b0152dc5edb2f963054c6af273119006e)), closes [#22857](https://github.com/aws/aws-cdk/issues/22857)
+
+
+### Bug Fixes
+
+* **cloudwatch:** math expressions incorrectly warn about metricsinsights variable names ([#23316](https://github.com/aws/aws-cdk/issues/23316)) ([55108b9](https://github.com/aws/aws-cdk/commit/55108b969a94f671a492b4536d2ad9d13d11cf9d))
+* **core:** cross stack references to string lists break ([#22873](https://github.com/aws/aws-cdk/issues/22873)) ([3ddb8cf](https://github.com/aws/aws-cdk/commit/3ddb8cf44f1e7a285b767f4f4540924a728083c4)), closes [/docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-ec2-vpcendpoint.html#aws-resource-ec2](https://github.com/aws//docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-ec2-vpcendpoint.html/issues/aws-resource-ec2) [#21682](https://github.com/aws/aws-cdk/issues/21682)
+* **custom-resources:** inactive lambda functions fail on invoke ([#22612](https://github.com/aws/aws-cdk/issues/22612)) ([def2971](https://github.com/aws/aws-cdk/commit/def2971d91eedbd327d3acec201d902376129f25)), closes [#20123](https://github.com/aws/aws-cdk/issues/20123)
+* **ec2:** Invalid security group ID ([#22859](https://github.com/aws/aws-cdk/issues/22859)) ([c2043c8](https://github.com/aws/aws-cdk/commit/c2043c8dfaaa3189f625dd93c94ee9139e5505e6)), closes [aws-cdk/aws-ec2/lib/peer.ts#L224](https://github.com/aws-cdk/aws-ec2/lib/peer.ts/issues/L224)
+* **ecr:** grants for cross-account principals result in failed deployments ([#16376](https://github.com/aws/aws-cdk/issues/16376)) ([84e20f8](https://github.com/aws/aws-cdk/commit/84e20f8da37c22639c033f51c89ef608260e7578)), closes [#15070](https://github.com/aws/aws-cdk/issues/15070)
+* **opensearch:** Don't throw a Az count mismatch for imported VPCs ([#22654](https://github.com/aws/aws-cdk/issues/22654)) ([6a28b7f](https://github.com/aws/aws-cdk/commit/6a28b7f0aecf0bc9c5876bf4c7df87d69f0af836)), closes [#22651](https://github.com/aws/aws-cdk/issues/22651)
+
+
+### Reverts
+
+* "chore: save exclusion rules when bumping the CFN spec ([#22788](https://github.com/aws/aws-cdk/issues/22788))" ([#23282](https://github.com/aws/aws-cdk/issues/23282)) ([cc76cfb](https://github.com/aws/aws-cdk/commit/cc76cfb124a59131996d75d05a82b7985c787ae0))
+
 ## [2.54.0](https://github.com/aws/aws-cdk/compare/v2.53.0...v2.54.0) (2022-12-07)
 
 
diff --git a/version.v2.json b/version.v2.json
index cc82457ff45a3..8e92aa8457643 100644
--- a/version.v2.json
+++ b/version.v2.json
@@ -1,4 +1,4 @@
 {
-  "version": "2.54.0",
-  "alphaVersion": "2.54.0-alpha.0"
+  "version": "2.55.0",
+  "alphaVersion": "2.55.0-alpha.0"
 }
\ No newline at end of file