diff --git a/admin_manual/release_notes.rst b/admin_manual/release_notes.rst
index bef91b287..40d363a34 100644
--- a/admin_manual/release_notes.rst
+++ b/admin_manual/release_notes.rst
@@ -15,16 +15,17 @@ For best performance, stability, support, and full functionality we recommend:
 Supported Platforms
 ^^^^^^^^^^^^^^^^^^^
 
-* Hypervisors: Hyper-V, VMware ESX, Xen, KVM
-* Server: Linux (Debian 7, SUSE Linux Enterprise Server 11 & 12 RHEL/Centos 6.5 
-  and 7, Ubuntu 12.04 LTS, 14.04 LTS, 14.10, Univention Corporate Server 
-  3.x)
+* Server: Linux (Debian 7, SUSE Linux Enterprise Server 11 SP3 & 12, 
+  Red Hat Enterprise Linux/Centos 6.5 and 7, Ubuntu 12.04 LTS, 14.04 LTS, 
+  14.10)
+* Webserver: Apache 2  
 * Databases: MySQL/MariaDB 5.x; Oracle 11g; PostgreSQL
+* PHP 5.4 + required
+* Hypervisors: Hyper-V, VMware ESX, Xen, KVM
 * Desktop: Windows XP SP3 (EoL Q2 2015), Windows 7+, Mac OS X 10.7+ (64-bit 
   only), Linux (CentOS 6.5, 7, Ubuntu 12.04 LTS, 14.04 LTS, 14.10, Fedora 20, 
   21, openSUSE 12.3, 13)
 * Mobile apps: iOS 7+, Android 4+
-* Webserver: Apache2
 * Web browser: IE8+, Firefox 14+, Chrome 18+, Safari 5+
 
 Windows Server Not Supported