Upgraded to Laravel 5.6

app/Config/hashing.php

@@ -0,0 +1,38 @@
+<?php
+
+/**
+ * Hashing configuration options.
+ *
+ * Changes to these config files are not supported by BookStack and may break upon updates.
+ * Configuration should be altered via the `.env` file or environment variables.
+ * Do not edit this file unless you're happy to maintain any changes yourself.
+ */
+
+return [
+
+    // Default Hash Driver
+    // This option controls the default hash driver that will be used to hash
+    // passwords for your application. By default, the bcrypt algorithm is
+    // used; however, you remain free to modify this option if you wish.
+    // Supported: "bcrypt", "argon"
+    'driver' => 'bcrypt',
+
+    // Bcrypt Options
+    // Here you may specify the configuration options that should be used when
+    // passwords are hashed using the Bcrypt algorithm. This will allow you
+    // to control the amount of time it takes to hash the given password.
+    'bcrypt' => [
+        'rounds' => env('BCRYPT_ROUNDS', 10),
+    ],
+
+    // Argon Options
+    // Here you may specify the configuration options that should be used when
+    // passwords are hashed using the Argon algorithm. These will allow you
+    // to control the amount of time it takes to hash the given password.
+    'argon' => [
+        'memory' => 1024,
+        'threads' => 2,
+        'time' => 2,
+    ],
+
+];