Update documentation

Author: Hackwar

README.md

@@ -753,24 +753,24 @@ The following resources contain more information:  [Joomla! API Reference](http:
 
 ## Installation via Composer
 
-Add `"joomla/github": "~2.0"` to the require block in your composer.json and then run `composer install`.
+Add `"joomla/github": "~4.0"` to the require block in your composer.json and then run `composer install`.
 
 ```json
 {
 	"require": {
-		"joomla/github": "~2.0"
+		"joomla/github": "~4.0"
 	}
 }
 ```
 
 Alternatively, you can simply run the following from the command line:
 
 ```sh
-composer require joomla/github "~2.0"
+composer require joomla/github "~4.0"
 ```
 
 If you want to include the test sources, use
 
 ```sh
-composer require --prefer-source joomla/github "~2.0"
+composer require --prefer-source joomla/github "~4.0"
 ```

SECURITY.md

@@ -5,7 +5,9 @@
 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: |
 | 1.7.x   | :white_check_mark: |
 | < 1.7   | :x:                |

docs/index.md

@@ -1 +1,3 @@
 * [Overview](overview.md)
+* [Updating from v2 to v3](v2-to-v3-update.md)
+* [Updating from v3 to v4](v3-to-v4-update.md)

docs/v2-to-v3-update.md

@@ -0,0 +1,7 @@
+## Updating from v2 to v3
+
+The following changes were made to the Github API package between v2 and v3.
+
+### Minimum supported PHP version raised
+
+All Framework packages now require PHP 8.1 or newer.

docs/v3-to-v4-update.md

@@ -0,0 +1,7 @@
+## Updating from v3 to v4
+
+The following changes were made to the Github API package between v3 and v4.
+
+### Minimum supported PHP version raised
+
+All Framework packages now require PHP 8.3 or newer.