Updating documentation

Author: Hackwar

README.md

@@ -355,24 +355,24 @@ class MyCli extends AbstractCliApplication
 
 ## Installation via Composer
 
-Add `"joomla/application": "~3.0"` to the require block in your composer.json and then run `composer install`.
+Add `"joomla/application": "~4.0"` to the require block in your composer.json and then run `composer install`.
 
 ```json
 {
 	"require": {
-		"joomla/application": "~3.0"
+		"joomla/application": "~4.0"
 	}
 }
 ```
 
 Alternatively, you can simply run the following from the command line:
 
 ```sh
-composer require joomla/application "~3.0"
+composer require joomla/application "~4.0"
 ```
 
 If you want to include the test sources, use
 
 ```sh
-composer require --prefer-source joomla/application "~3.0"
+composer require --prefer-source joomla/application "~4.0"
 ```

docs/v3-to-v4-update.md

@@ -2,6 +2,10 @@
 
 The following changes were made to the Application package between v3 and v4.
 
+### Minimum supported PHP version raised
+
+All Framework packages now require PHP 8.3 or newer.
+
 ### Access to input data
 
 Accessing the input data in the input attribute of the application can now only be done via the `getInput()`.