Bump

Author: sebastianbergmann

composer.json

@@ -14,11 +14,12 @@
             "email": "[email protected]"
         }
     ],
+    "minimum-stability": "dev",
     "require": {
         "php": "^7.1"
     },
     "require-dev": {
-        "phpunit/phpunit": "^6.2",
+        "phpunit/phpunit": "^7.0",
         "symfony/process": "^2 || ^3.3 || ^4"
     },
     "autoload": {
@@ -33,7 +34,7 @@
     },
     "extra": {
         "branch-alias": {
-            "dev-master": "2.1-dev"
+            "dev-master": "3.0-dev"
         }
     }
 }