Add in warning to upgrade

composer.json

@@ -14,6 +14,7 @@
     ],
     "require": {
         "php": ">=5.5.9",
+        "kylekatarnls/update-helper": "^1.1",
         "laravel/framework": "^5.0|^6.0|^7.0",
         "guzzlehttp/guzzle": "^6.2",
         "mockery/mockery": "^1.0"
@@ -33,13 +34,19 @@
             "Midnite81\\GeoLocation\\Tests\\": "tests/"
         }
     },
+    "scripts": {
+        "post-autoload-dump": [
+            "UpdateHelper\\UpdateHelper::check"
+        ]
+    },
     "extra": {
         "component": "package",
         "frameworks": [
             "Laravel 5",
             "Laravel 6",
             "Laravel 7"
-        ]
+        ],
+        "update-helper": "Midnite81\\GeoLocation\\Upgrade"
     },
     "minimum-stability": "stable"
 }

src/Upgrade.php

@@ -0,0 +1,68 @@
+<?php
+
+namespace Midnite81\GeoLocation;
+
+use RuntimeException;
+use UpdateHelper\UpdateHelper;
+use UpdateHelper\UpdateHelperInterface;
+
+class Upgrade implements UpdateHelperInterface
+{
+    /**
+     * @var string
+     */
+    protected $packageName = 'midnite81/geolocation';
+
+    /**
+     * @var UpdateHelper
+     */
+    protected $helper;
+
+    public function check(UpdateHelper $helper)
+    {
+        $this->helper = $helper;
+        $dependencies = $helper->getProdDependencies();
+
+        if (array_key_exists($this->packageName, $dependencies)) {
+            $version = $dependencies[$this->packageName];
+            $helper->write($this->packageName . ' is installed as version '
+                . $version);
+            if ($this->version1($version)) {
+                $this->yellow('****');
+                $this->yellow("Please considering {$this->packageName} to version 2 or greater. Version 1 has been depreciated because of an issue with PSR-4 and composer v2");
+                $this->yellow('****');
+            }
+        }
+    }
+
+    private function version1($version)
+    {
+        return preg_match('/^[\^~>]?1\./', $version);
+    }
+
+    private function yellow($string)
+    {
+        $colour = $this->colour('yellow');
+        $reset  = $this->colour('reset');
+
+        $this->helper->write($colour . $string . $reset);
+    }
+
+    private function colour($colour)
+    {
+        $colours = [
+            'reset'  => "[0m",
+            'yellow' => "[33m"
+        ];
+
+        if (!array_key_exists($colour, $colours)) {
+            throw new RuntimeException("Colour '$colour' not found");
+        }
+
+        if (PHP_OS == 'Darwin') {
+            return "\e" . $colours[$colour];
+        }
+
+        return "\u001b" . $colours[$colour];
+    }
+}