diff --git a/maintenance/projects/amd-loader/README.md b/maintenance/projects/amd-loader/README.md
index 3db1d9ef62..5c3611eefe 100644
--- a/maintenance/projects/amd-loader/README.md
+++ b/maintenance/projects/amd-loader/README.md
@@ -1,3 +1,8 @@
+> :warning: This project is now deprecated.
+> These tools are deprecated as of Liferay 2024.Q4/7.4 GA129, and they are planned for future removal. Modern browsers (and Liferay DXP) all support including JavaScript ECMAScript modules directly, so these tools are no longer needed.
+
+---
+
 # AMD Module Loader
 
 ![global](https://github.com/liferay/liferay-frontend-projects/workflows/global/badge.svg)
diff --git a/maintenance/projects/js-toolkit/README.md b/maintenance/projects/js-toolkit/README.md
index 3618b24ab8..5582f9189f 100644
--- a/maintenance/projects/js-toolkit/README.md
+++ b/maintenance/projects/js-toolkit/README.md
@@ -1,3 +1,8 @@
+> :warning: This project is now deprecated.
+> These tools are deprecated as of Liferay 2024.Q4/7.4 GA129, and they are planned for future removal. Modern browsers (and Liferay DXP) all support including JavaScript ECMAScript modules directly, so these tools are no longer needed.
+
+---
+
 # liferay-js-toolkit
 
 ![js-toolkit-v2](https://github.com/liferay/liferay-frontend-projects/workflows/js-toolkit-v2/badge.svg)
diff --git a/projects/js-themes-toolkit/packages/generator-liferay-theme/README.md b/projects/js-themes-toolkit/packages/generator-liferay-theme/README.md
index 3f0bde9c5c..8d0484a97a 100644
--- a/projects/js-themes-toolkit/packages/generator-liferay-theme/README.md
+++ b/projects/js-themes-toolkit/packages/generator-liferay-theme/README.md
@@ -1,3 +1,8 @@
+> :warning: This project is now deprecated.
+> This tool is deprecated as of Liferay 2024.Q4/7.4 GA129. The Liferay Theme Generator is being deprecated and it will be removed in the future. Customers are encouraged ta use Theme Client Extensions or third-party tooling to generate themes.
+
+---
+
 # Liferay Theme Generator [![Build Status](https://travis-ci.org/liferay/generator-liferay-theme.svg?branch=master)](https://travis-ci.org/liferay/generator-liferay-theme) [![Coverage Status](https://coveralls.io/repos/github/liferay/generator-liferay-theme/badge.svg?branch=master)](https://coveralls.io/github/liferay/generator-liferay-theme?branch=master)
 
 **Note: the Liferay theme generator is still in development and is not guaranteed to work on all platforms/environments.**
diff --git a/projects/js-themes-toolkit/packages/liferay-theme-tasks/README.md b/projects/js-themes-toolkit/packages/liferay-theme-tasks/README.md
index 7c548a00df..ab15170001 100644
--- a/projects/js-themes-toolkit/packages/liferay-theme-tasks/README.md
+++ b/projects/js-themes-toolkit/packages/liferay-theme-tasks/README.md
@@ -1,3 +1,8 @@
+> :warning: This project is now deprecated.
+> This tool is deprecated as of Liferay 2024.Q4/7.4 GA129. The Liferay Theme Tasks are being deprecated and they will be removed in the future. The feature is based in Gulp 4 which is also deprecated. Customers are encouraged to use third party tooling to substitute it.
+
+---
+
 # Liferay Theme Tasks [![Build Status](https://travis-ci.org/liferay/liferay-theme-tasks.svg?branch=master)](https://travis-ci.org/liferay/liferay-theme-tasks)
 
 > The liferay-theme-tasks module is intended for use with the yeoman generator for [Liferay themes](https://github.com/liferay/generator-liferay-theme).
diff --git a/projects/js-toolkit/README.md b/projects/js-toolkit/README.md
index ef9631b552..a69dee49e9 100644
--- a/projects/js-toolkit/README.md
+++ b/projects/js-toolkit/README.md
@@ -1,3 +1,8 @@
+> :warning: This project is now deprecated.
+> These tools are deprecated as of Liferay 2024.Q4/7.4 GA129, and they are planned for future removal. Modern browsers (and Liferay DXP) all support including JavaScript ECMAScript modules directly, so these tools are no longer needed.
+
+---
+
 # liferay-js-toolkit
 
 ![global](https://github.com/liferay/liferay-frontend-projects/workflows/global/badge.svg)
diff --git a/projects/js-toolkit/packages/liferay-cli/README.md b/projects/js-toolkit/packages/liferay-cli/README.md
index 73befd8411..7416dc08da 100644
--- a/projects/js-toolkit/packages/liferay-cli/README.md
+++ b/projects/js-toolkit/packages/liferay-cli/README.md
@@ -1,3 +1,8 @@
+> :warning: This project is now deprecated.
+> This tool is deprecated as of Liferay 2024.Q4/7.4 GA129. We recommend using standard JS tooling such as Vite, EsBuild, Webpack wtc. Modern browsers (and Liferay DXP) all support including JavaScript ECMAScript modules directly, so this tool is no longer needed.
+
+---
+
 # @liferay/cli
 
 This project hosts the Liferay JS Toolkit CLI Tool.
diff --git a/projects/js-toolkit/packages/npm-bundler/README.md b/projects/js-toolkit/packages/npm-bundler/README.md
index 376a7006ce..3f38d08f33 100644
--- a/projects/js-toolkit/packages/npm-bundler/README.md
+++ b/projects/js-toolkit/packages/npm-bundler/README.md
@@ -1,3 +1,8 @@
+> :warning: This project is now deprecated.
+> This tool is deprecated as of Liferay 2024.Q4/7.4 GA129. Modern browsers (and Liferay DXP) all support including JavaScript ECMAScript modules directly, so this tool is no longer needed.
+
+---
+
 # @liferay/npm-bundler
 
 A tool to process a Liferay widget project to produce an OSGi bundle containing the needed npm dependencies so that it can be run when deployed to the Portal.