diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index b8e001df7ad598..160edec9a6ce8b 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -1,5 +1,26 @@
 # @mdn/browser-compat-data release notes
 
+## [v5.6.21](https://github.com/mdn/browser-compat-data/releases/tag/v5.6.21)
+
+December 3, 2024
+
+### Removals
+
+- `browsers.nodejs.releases.10.5.0` ([#25014](https://github.com/mdn/browser-compat-data/pull/25014))
+
+### Additions
+
+- `browsers.nodejs.releases.21.1.0` ([#24988](https://github.com/mdn/browser-compat-data/pull/24988))
+- `webassembly.exceptionsFinal` ([#25252](https://github.com/mdn/browser-compat-data/pull/25252))
+- `webassembly.typedFunctionReferences` ([#25252](https://github.com/mdn/browser-compat-data/pull/25252))
+
+### Statistics
+
+- 6 contributors have changed 47 files with 741 additions and 310 deletions in 21 commits ([`v5.6.20...v5.6.21`](https://github.com/mdn/browser-compat-data/compare/v5.6.20...v5.6.21))
+- 16,758 total features
+- 1,116 total contributors
+- 5,013 total stargazers
+
 ## [v5.6.20](https://github.com/mdn/browser-compat-data/releases/tag/v5.6.20)
 
 November 29, 2024
diff --git a/package-lock.json b/package-lock.json
index bd513dc9df3147..a542908933513f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@mdn/browser-compat-data",
-  "version": "5.6.20",
+  "version": "5.6.21",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@mdn/browser-compat-data",
-      "version": "5.6.20",
+      "version": "5.6.21",
       "hasInstallScript": true,
       "license": "CC0-1.0",
       "devDependencies": {
diff --git a/package.json b/package.json
index 1f6e9d454c4f09..dd7c6dd441963c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@mdn/browser-compat-data",
-  "version": "5.6.20",
+  "version": "5.6.21",
   "description": "Browser compatibility data provided by MDN Web Docs",
   "main": "index.ts",
   "type": "module",