diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index e1b227b7a1b9be..2d778bf32f97cf 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -1,5 +1,70 @@
 # @mdn/browser-compat-data release notes
 
+## [v5.6.42](https://github.com/mdn/browser-compat-data/releases/tag/v5.6.42)
+
+February 25, 2025
+
+### Removals
+
+- `webextensions.api.userScripts.onBeforeScript` ([#25913](https://github.com/mdn/browser-compat-data/pull/25913))
+- `webextensions.api.userScripts.register.cookieStoreId` ([#25913](https://github.com/mdn/browser-compat-data/pull/25913))
+- `webextensions.api.userScripts.RegisteredUserScript.unregister` ([#25913](https://github.com/mdn/browser-compat-data/pull/25913))
+
+### Additions
+
+- `api.MediaSession.setScreenshareActive` ([#26039](https://github.com/mdn/browser-compat-data/pull/26039))
+- `browsers.safari_ios.releases.18.4` ([#26013](https://github.com/mdn/browser-compat-data/pull/26013))
+- `browsers.safari.releases.18.4` ([#26013](https://github.com/mdn/browser-compat-data/pull/26013))
+- `browsers.webview_ios.releases.18.4` ([#26013](https://github.com/mdn/browser-compat-data/pull/26013))
+- `css.properties.font-width` ([#26039](https://github.com/mdn/browser-compat-data/pull/26039))
+- `css.properties.font-width.condensed` ([#26039](https://github.com/mdn/browser-compat-data/pull/26039))
+- `css.properties.font-width.expanded` ([#26039](https://github.com/mdn/browser-compat-data/pull/26039))
+- `css.properties.font-width.extra-condensed` ([#26039](https://github.com/mdn/browser-compat-data/pull/26039))
+- `css.properties.font-width.extra-expanded` ([#26039](https://github.com/mdn/browser-compat-data/pull/26039))
+- `css.properties.font-width.normal` ([#26039](https://github.com/mdn/browser-compat-data/pull/26039))
+- `css.properties.font-width.semi-condensed` ([#26039](https://github.com/mdn/browser-compat-data/pull/26039))
+- `css.properties.font-width.semi-expanded` ([#26039](https://github.com/mdn/browser-compat-data/pull/26039))
+- `css.properties.font-width.ultra-condensed` ([#26039](https://github.com/mdn/browser-compat-data/pull/26039))
+- `css.properties.font-width.ultra-expanded` ([#26039](https://github.com/mdn/browser-compat-data/pull/26039))
+- `css.properties.text-autospace` ([#26039](https://github.com/mdn/browser-compat-data/pull/26039))
+- `css.properties.text-autospace.auto` ([#26039](https://github.com/mdn/browser-compat-data/pull/26039))
+- `css.properties.text-autospace.ideograph-alpha` ([#26039](https://github.com/mdn/browser-compat-data/pull/26039))
+- `css.properties.text-autospace.ideograph-numeric` ([#26039](https://github.com/mdn/browser-compat-data/pull/26039))
+- `css.properties.text-autospace.no-autospace` ([#26039](https://github.com/mdn/browser-compat-data/pull/26039))
+- `css.properties.text-autospace.normal` ([#26039](https://github.com/mdn/browser-compat-data/pull/26039))
+- `javascript.builtins.Error.isError` ([#25978](https://github.com/mdn/browser-compat-data/pull/25978))
+- `webextensions.api.commands.openShortcutSettings` ([#25944](https://github.com/mdn/browser-compat-data/pull/25944))
+- `webextensions.api.runtime.onUserScriptConnect` ([#25913](https://github.com/mdn/browser-compat-data/pull/25913))
+- `webextensions.api.runtime.onUserScriptMessage` ([#25913](https://github.com/mdn/browser-compat-data/pull/25913))
+- `webextensions.api.userScripts` ([#25913](https://github.com/mdn/browser-compat-data/pull/25913))
+- `webextensions.api.userScripts_legacy` ([#25857](https://github.com/mdn/browser-compat-data/pull/25857))
+- `webextensions.api.userScripts_legacy.onBeforeScript` ([#25857](https://github.com/mdn/browser-compat-data/pull/25857))
+- `webextensions.api.userScripts_legacy.register` ([#25857](https://github.com/mdn/browser-compat-data/pull/25857))
+- `webextensions.api.userScripts_legacy.register.cookieStoreId` ([#25857](https://github.com/mdn/browser-compat-data/pull/25857))
+- `webextensions.api.userScripts_legacy.RegisteredUserScript` ([#25857](https://github.com/mdn/browser-compat-data/pull/25857))
+- `webextensions.api.userScripts_legacy.RegisteredUserScript.unregister` ([#25857](https://github.com/mdn/browser-compat-data/pull/25857))
+- `webextensions.api.userScripts.configureWorld` ([#25913](https://github.com/mdn/browser-compat-data/pull/25913))
+- `webextensions.api.userScripts.ExecutionWorld` ([#25913](https://github.com/mdn/browser-compat-data/pull/25913))
+- `webextensions.api.userScripts.getScripts` ([#25913](https://github.com/mdn/browser-compat-data/pull/25913))
+- `webextensions.api.userScripts.getWorldConfigurations` ([#25913](https://github.com/mdn/browser-compat-data/pull/25913))
+- `webextensions.api.userScripts.RegisteredUserScript.worldId` ([#25913](https://github.com/mdn/browser-compat-data/pull/25913))
+- `webextensions.api.userScripts.resetWorldConfiguration` ([#25913](https://github.com/mdn/browser-compat-data/pull/25913))
+- `webextensions.api.userScripts.ScriptSource` ([#25913](https://github.com/mdn/browser-compat-data/pull/25913))
+- `webextensions.api.userScripts.unregister` ([#25913](https://github.com/mdn/browser-compat-data/pull/25913))
+- `webextensions.api.userScripts.update` ([#25913](https://github.com/mdn/browser-compat-data/pull/25913))
+- `webextensions.api.userScripts.UserScriptFilter` ([#25913](https://github.com/mdn/browser-compat-data/pull/25913))
+- `webextensions.api.userScripts.WorldProperties` ([#25913](https://github.com/mdn/browser-compat-data/pull/25913))
+- `webextensions.api.userScripts.WorldProperties.worldId` ([#25913](https://github.com/mdn/browser-compat-data/pull/25913))
+- `webextensions.manifest.optional_permissions.userScripts` ([#25913](https://github.com/mdn/browser-compat-data/pull/25913))
+- `webextensions.manifest.permissions.userScripts` ([#25913](https://github.com/mdn/browser-compat-data/pull/25913))
+
+### Statistics
+
+- 6 contributors have changed 121 files with 1,744 additions and 452 deletions in 39 commits ([`v5.6.41...v5.6.42`](https://github.com/mdn/browser-compat-data/compare/v5.6.41...v5.6.42))
+- 16,974 total features
+- 1,130 total contributors
+- 5,115 total stargazers
+
 ## [v5.6.41](https://github.com/mdn/browser-compat-data/releases/tag/v5.6.41)
 
 February 21, 2025
diff --git a/package-lock.json b/package-lock.json
index cd2f95120bb829..7fdfdaae1ca3df 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@mdn/browser-compat-data",
-  "version": "5.6.41",
+  "version": "5.6.42",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@mdn/browser-compat-data",
-      "version": "5.6.41",
+      "version": "5.6.42",
       "hasInstallScript": true,
       "license": "CC0-1.0",
       "devDependencies": {
diff --git a/package.json b/package.json
index 4ddb5901aaca5a..2027b7d893946d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@mdn/browser-compat-data",
-  "version": "5.6.41",
+  "version": "5.6.42",
   "description": "Browser compatibility data provided by MDN Web Docs",
   "main": "index.ts",
   "type": "module",