Update PHP version requirement in Composer to reflect actual minimum version. Update README to add version info.

szainmehdi · szainmehdi · commit 4a187f6a0b8a · 2015-11-25T17:37:21.000-08:00
diff --git a/README.md b/README.md
@@ -6,6 +6,10 @@
 
 Cast your Eloquent model attributes to value objects with ease!
 
+### Requirements
+
+This package requires PHP >= 5.6. Using the latest version of PHP is highly recommended. Laravel 4.x and 5.x are supported.
+
 ### Install
 
 Require this package with composer using the following command:
diff --git a/composer.json b/composer.json
@@ -17,7 +17,7 @@
         ]
     },
     "require": {
-        "php": ">=5.4",
+        "php": ">=5.6",
         "laravel/framework": ">=4.0"
     },
     "require-dev": {
