diff --git a/Gruntfile.js b/Gruntfile.js
index 695ec9f..7d127ad 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -115,11 +115,23 @@ module.exports = function (grunt) {
                 'LICENSE',
                 'favicon.ico',
             ]
+        },
+
+        shell: {
+            phpstan: {
+                command: '"./vendor/bin/phpstan" analyse app resources/lang bin install'
+            },
+            composer_no_dev: {
+                command: 'composer install --no-dev'
+            }
         }
+
     });
 
     require('load-grunt-tasks')(grunt);
     grunt.registerTask('default', ['jshint', 'cssmin', 'uglify', 'copy']);
     grunt.registerTask('test', ['jshint']);
-    grunt.registerTask('build-release', ['default', 'zip']);
+    grunt.registerTask('phpstan', ['shell:phpstan']);
+    grunt.registerTask('composer_no_dev', ['shell:composer_no_dev']);
+    grunt.registerTask('build-release', ['default', 'composer_no_dev', 'zip']);
 };
\ No newline at end of file
diff --git a/app/Web/Session.php b/app/Web/Session.php
index 0d380df..28cee27 100644
--- a/app/Web/Session.php
+++ b/app/Web/Session.php
@@ -25,6 +25,7 @@ class Session
 				'name' => $name,
 				'save_path' => $path,
 				'cookie_httponly' => true,
+				'gc_probability' => 25,
 			]);
 
 			if (!$started) {
diff --git a/composer.lock b/composer.lock
index 3297c92..47331fa 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "content-hash": "e650b40bdd96d101030a0e33a7ff5ffe",
+    "content-hash": "120224d788960ba61ae3d0e49e173ad3",
     "packages": [
         {
             "name": "container-interop/container-interop",
diff --git a/index.php b/index.php
index 970ba81..a284fca 100644
--- a/index.php
+++ b/index.php
@@ -1,5 +1,5 @@
 <?php
-(PHP_MAJOR_VERSION >= 7 && PHP_MINOR_VERSION >= 1) ?: die('Sorry, PHP >=7.1 is required to run XBackBone.');
+(PHP_MAJOR_VERSION >= 7 && PHP_MINOR_VERSION >= 1) ?: die('Sorry, PHP 7.1 or above is required to run XBackBone.');
 require __DIR__ . '/vendor/autoload.php';
 
 define('BASE_DIR', __DIR__ . DIRECTORY_SEPARATOR);
diff --git a/install/index.php b/install/index.php
index d51f06e..a3bb5cf 100644
--- a/install/index.php
+++ b/install/index.php
@@ -1,5 +1,5 @@
 <?php
-(PHP_MAJOR_VERSION >= 7 && PHP_MINOR_VERSION >= 1) ?: die('Sorry, PHP >=7.1 is required to run XBackBone.');
+(PHP_MAJOR_VERSION >= 7 && PHP_MINOR_VERSION >= 1) ?: die('Sorry, PHP 7.1 or above is required to run XBackBone.');
 require __DIR__ . '/../vendor/autoload.php';
 
 use App\Database\DB;
diff --git a/package-lock.json b/package-lock.json
index 41b33e3..5779220 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -586,6 +586,26 @@
       "integrity": "sha1-8mqEj2pHl6X/foUOYCIMDea+jnI=",
       "dev": true
     },
+    "grunt-shell": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/grunt-shell/-/grunt-shell-3.0.1.tgz",
+      "integrity": "sha512-C8eR4frw/NmIFIwSvzSLS4wOQBUzC+z6QhrKPzwt/tlaIqlzH35i/O2MggVOBj2Sh1tbaAqpASWxGiGsi4JMIQ==",
+      "dev": true,
+      "dependencies": {
+        "ansi-regex": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.1.0.tgz",
+          "integrity": "sha512-1apePfXM1UOSqw0o9IiFAovVz9M5S1Dg+4TrDwfMewQ6p/rmMueb7tWZjQ1rx4Loy1ArBggoqGpfqqdI4rondg==",
+          "dev": true
+        },
+        "strip-ansi": {
+          "version": "5.2.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.2.0.tgz",
+          "integrity": "sha512-DuRs1gKbBqsMKIZlrffwlug8MHkcnpjs5VPmL1PAh+mA30U0DTotfDZ0d2UUsXpPmPmMMJ6W773MaA3J+lbiWA==",
+          "dev": true
+        }
+      }
+    },
     "grunt-zip": {
       "version": "0.18.2",
       "resolved": "https://registry.npmjs.org/grunt-zip/-/grunt-zip-0.18.2.tgz",
@@ -877,6 +897,12 @@
       "integrity": "sha512-9jjUFbTPfEy3R/ad/2oNbKtW9Hgovl5O1FvFWKkKblNXoN/Oou6+9+KKohPK13Yc3/TyunyWhJp6gvRNR/PPAw==",
       "dev": true
     },
+    "npm-run-path": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/npm-run-path/-/npm-run-path-2.0.2.tgz",
+      "integrity": "sha1-NakjLfo11wZ7TLLd8jV7GHFTbF8=",
+      "dev": true
+    },
     "number-is-nan": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/number-is-nan/-/number-is-nan-1.0.1.tgz",
@@ -942,6 +968,12 @@
       "integrity": "sha1-F0uSaHNVNP+8es5r9TpanhtcX18=",
       "dev": true
     },
+    "path-key": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/path-key/-/path-key-2.0.1.tgz",
+      "integrity": "sha1-QRyttXTFoUDTpLGRDUDYDMn0C0A=",
+      "dev": true
+    },
     "path-type": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/path-type/-/path-type-1.1.0.tgz",
diff --git a/package.json b/package.json
index ff69736..752a442 100644
--- a/package.json
+++ b/package.json
@@ -16,6 +16,7 @@
     "grunt-contrib-jshint": "^2.1.0",
     "grunt-contrib-uglify": "^4.0.1",
     "grunt-contrib-watch": "^1.1.0",
+    "grunt-shell": "^3.0.1",
     "grunt-zip": "^0.18.2",
     "load-grunt-tasks": "^4.0.0"
   }