diff --git a/api/api.php b/api/api.php
index 6f2091f..d01fb0c 100644
--- a/api/api.php
+++ b/api/api.php
@@ -1,9 +1,9 @@
 <?php
 // Verify the PHP version, gives tutorial if fail.
-if (version_compare(phpversion(), '5.3.3', '<')) die('PHP 5.3.3 or higher is required');
+if (version_compare(phpversion(), '7.2', '<')) die('PHP version 7.2 or higher is required.');
 if (!isset($filepath)) $filepath = '../';
 
-$version = '1.5_SVN';
+$version = '2.0_DEV';
 session_start();
 ob_start();
 require_once $filepath.'config.php';
diff --git a/engine/database/connect.php b/engine/database/connect.php
index 52aadf4..ff19147 100644
--- a/engine/database/connect.php
+++ b/engine/database/connect.php
@@ -1,6 +1,6 @@
 <?php
 $time = time();
-if (!isset($version)) $version = '1.5_SVN';
+if (!isset($version)) $version = '2.0_DEV';
 
 if (!function_exists("elapsedTime")) {
 	function elapsedTime($l_start = false, $l_time = false) {
diff --git a/engine/database/znote_schema.sql b/engine/database/znote_schema.sql
index 4db8b2c..a50283d 100644
--- a/engine/database/znote_schema.sql
+++ b/engine/database/znote_schema.sql
@@ -1,6 +1,6 @@
 -- Start of Znote AAC database schema
 
-SET @znote_version = '1.5_SVN';
+SET @znote_version = '2.0_DEV';
 
 CREATE TABLE IF NOT EXISTS `znote` (
   `id` int NOT NULL AUTO_INCREMENT,
diff --git a/engine/init.php b/engine/init.php
index 9da40fe..c905387 100644
--- a/engine/init.php
+++ b/engine/init.php
@@ -1,4 +1,4 @@
-<?php if (version_compare(phpversion(), '5.6', '<')) die('PHP version 5.6 or higher is required.');
+<?php if (version_compare(phpversion(), '7.2', '<')) die('PHP version 7.2 or higher is required.');
 
 $l_time = microtime();
 $l_time = explode(' ', $l_time);
@@ -15,7 +15,7 @@ function elapsedTime($l_start = false, $l_time = false) {
 }
 
 $time = time();
-$version = '1.5_SVN';
+$version = '2.0_DEV';
 
 $aacQueries = 0;
 $accQueriesData = array();