diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4d334fe235..661449c7ab 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,13 @@
+### v1.21.0
+## What's Changed
+* Pass parameters to `ForEachCollection` processing by @kddejong in https://github.com/aws-cloudformation/cfn-lint/pull/3854
+* Update rule [W8003](https://github.com/aws-cloudformation/cfn-python-lint/blob/main/docs/rules.md#W8003) to include always false by @kddejong in https://github.com/aws-cloudformation/cfn-lint/pull/3855
+* Skip `Fn::FindInMap` resolution when hitting a `Fn::Sub` by @kddejong in https://github.com/aws-cloudformation/cfn-lint/pull/3856
+* Add `Assign` to appropriate state machine options by @kddejong in https://github.com/aws-cloudformation/cfn-lint/pull/3859
+* Update CloudFormation schemas to `2024-12-09` by @github-actions in https://github.com/aws-cloudformation/cfn-lint/pull/3853
+
+**Full Changelog**: https://github.com/aws-cloudformation/cfn-lint/compare/v1.20.2...v1.21.0
+
 ### v1.20.2
 ## What's Changed
 * Add SES exception for boto `MatchingEventTypes` by @kddejong in https://github.com/aws-cloudformation/cfn-lint/pull/3843
diff --git a/README.md b/README.md
index c14a821adb..fb8eef321f 100644
--- a/README.md
+++ b/README.md
@@ -342,7 +342,7 @@ If you'd like cfn-lint to be run automatically when making changes to files in y
 ```yaml
 repos:
   - repo: https://github.com/aws-cloudformation/cfn-lint
-    rev: v1.20.2 # The version of cfn-lint to use
+    rev: v1.21.0 # The version of cfn-lint to use
     hooks:
       - id: cfn-lint
         files: path/to/cfn/dir/.*\.(json|yml|yaml)$
@@ -353,7 +353,7 @@ If you are using a `.cfnlintrc` and specifying the `templates` or `ignore_templa
 ```yaml
 repos:
   - repo: https://github.com/aws-cloudformation/cfn-lint
-    rev: v1.20.2 # The version of cfn-lint to use
+    rev: v1.21.0 # The version of cfn-lint to use
     hooks:
       - id: cfn-lint-rc
 ```
diff --git a/src/cfnlint/version.py b/src/cfnlint/version.py
index 389b4246aa..f5a29b9b0e 100644
--- a/src/cfnlint/version.py
+++ b/src/cfnlint/version.py
@@ -3,4 +3,4 @@
 SPDX-License-Identifier: MIT-0
 """
 
-__version__ = "1.20.2"
+__version__ = "1.21.0"