Based on Ubuntu 16.04 LTS (Xenial Xerus), Zentyal Server 5.0 comes with the latest Open Source software and GNU/Linux technologies, including an untouched Samba 4.5.1 implementation from upstream, which puts a layer of performance to the AD (Active Directory) interoperability of the small business server. Zentyal Server 5.0 also ships with the trusted SOGo 3.2.1 groupware server, which features a brand-new, modern web-based user interface based on recent technologies and designed to offer users an improved look and feel with its stunning visual effects, as well as more usability and improvements on the ActiveSync implementation.