Updating framework to v4

.gitattributes

@@ -1,9 +1,6 @@
 .github/ export-ignore
-.phan/ export-ignore
 docs/ export-ignore
 Tests/ export-ignore
-.drone.jsonnet export-ignore
-.drone.yml export-ignore
 .editorconfig export-ignore
 .gitattributes export-ignore
 .gitignore export-ignore

README.md

@@ -7,18 +7,18 @@
 
 ## Installation via Composer
 
-Add `"joomla/string": "~3.0"` to the require block in your composer.json and then run `composer install`.
+Add `"joomla/string": "~4.0"` to the require block in your composer.json and then run `composer install`.
 
 ```json
 {
 	"require": {
-		"joomla/string": "~3.0"
+		"joomla/string": "~4.0"
 	}
 }
 ```
 
 Alternatively, you can simply run the following from the command line:
 
 ```sh
-composer require joomla/string "~3.0"
+composer require joomla/string "~4.0"
 ```

SECURITY.md

@@ -5,7 +5,8 @@
 These versions are currently being supported with security updates:
 
 | Version | Supported          |
-| ------- | ------------------ |
+|---------| ------------------ |
+| 4.x.x   | :white_check_mark: |
 | 3.x.x   | :white_check_mark: |
 | 2.0.x   | :white_check_mark: |
 | 1.4.x   | :x:                |