diff --git a/docs/creating-components.md b/docs/creating-components.md
index a982327dcc..30bdf14037 100644
--- a/docs/creating-components.md
+++ b/docs/creating-components.md
@@ -251,11 +251,10 @@ You can make `custom_skin.css` file from the [Sandstone custom-skin sample](http
 //
 .sandstone-theme {
 	--sand-bg-color: #000000;
-	--sand-text-color-rgb: 230, 230, 230;
-	--sand-component-text-color-rgb: 230, 230, 230;
+	--sand-text-color: #E6E6E6;
+	--sand-component-text-color: #E6E6E6;
 	--sand-component-bg-color: #7D848C;
 	--sand-component-active-indicator-bg-color: #E6E6E6;
 	--sand-component-inactive-indicator-bg-color: #9DA2A7;
 }
 ```
-> Note: You should be sure to put RGB-separated values in the CSS variable names ending with `-rgb` if you edit the value in the file directly.
\ No newline at end of file
diff --git a/packages/core/CHANGELOG.md b/packages/core/CHANGELOG.md
index 9a84cf46e9..6f076791c1 100644
--- a/packages/core/CHANGELOG.md
+++ b/packages/core/CHANGELOG.md
@@ -2,6 +2,12 @@
 
 The following is a curated list of changes in the Enact core module, newest changes on the top.
 
+## [unreleased]
+
+### Changed
+
+- `core/platform` to support `safari` 16.4, `chrome` 119, and `firefox` 128 or later
+
 ## [5.0.0-alpha.3] - 2024-12-02
 
 No significant changes.
diff --git a/packages/core/platform/platform.js b/packages/core/platform/platform.js
index badb9de606..7c730c43c4 100644
--- a/packages/core/platform/platform.js
+++ b/packages/core/platform/platform.js
@@ -35,7 +35,7 @@ const userAgentPatterns = [
 ];
 
 // The base supported versions: Used in DEPRECATED warning
-const supportedVersions = {safari: 15.6, chrome: 94, firefox: 115};
+const supportedVersions = {safari: 16.4, chrome: 119, firefox: 128};
 
 const parseUserAgent = (userAgent) => {
 	const detectedInfo = {