diff --git a/README.md b/README.md
index 1f0dd58..4d3fee5 100644
--- a/README.md
+++ b/README.md
@@ -2,8 +2,11 @@
 
 [![CI](https://github.com/SemanticMediaWiki/SemanticFormsSelect/actions/workflows/ci.yml/badge.svg)](https://github.com/SemanticMediaWiki/SemanticFormsSelect/actions/workflows/ci.yml)
 [![codecov](https://codecov.io/gh/SemanticMediaWiki/SemanticFormsSelect/branch/master/graph/badge.svg?token=sSjXlzUDXI)](https://codecov.io/gh/SemanticMediaWiki/SemanticFormsSelect)
+[![Latest Stable Version](https://poser.pugx.org/mediawiki/semantic-forms-select/v/stable)](https://packagist.org/packages/mediawiki/semantic-forms-select)
+[![Download count](https://poser.pugx.org/mediawiki/semantic-forms-select/downloads)](https://packagist.org/packages/mediawiki/semantic-forms-select)
+[![License](https://poser.pugx.org/mediawiki/semantic-forms-select/license)](LICENSE)
 
-Semantic Forms Select (a.k.a. SFS) can generate a select form element with values retrieved from a `#ask` query or a parser function.
+Semantic Forms Select can generate a select form element with values retrieved from a `#ask` query or a parser function.
 
 ## Requirements
 
@@ -29,7 +32,7 @@ in your shell:
     wget https://getcomposer.org/composer.phar
 
 ### Step 2
-    
+
 If you do not have a "composer.local.json" file yet, create one and add the following content to it:
 
 ```
diff --git a/RELEASE-NOTES.md b/RELEASE-NOTES.md
index 24a360a..667215c 100644
--- a/RELEASE-NOTES.md
+++ b/RELEASE-NOTES.md
@@ -1,4 +1,15 @@
-This file contains the RELEASE-NOTES of the Semantic Forms Select (a.k.a. SFS) extension.
+This file contains the RELEASE-NOTES of the Semantic Forms Select extension.
+
+### 4.0.0
+
+Released on April 18, 2025.
+
+Compatible with MediaWiki 1.39 up to 1.43, PHP 7.4 up to 8.4, and SMW 4.2 up to 5.x.
+
+* Dropped support for MediaWiki 1.39 and lower
+* Dropped support for PHP 7.4 and lower
+* Added support for MediaWiki up to 1.43
+* Various fixes
 
 ### 4.0.0-beta
 
diff --git a/extension.json b/extension.json
index 322ecf1..9303b06 100644
--- a/extension.json
+++ b/extension.json
@@ -1,6 +1,6 @@
 {
 	"name": "Semantic Forms Select",
-	"version": "4.0.0-beta",
+	"version": "4.0.0",
 	"author": [
 		"Jason Zhang",
 		"James Hong Kong",