5 Release and Migration Notes - GeneralGeneralGPL Compliance StatementThis product is in part Linux based and contains both Barracuda Networks proprietary software components and open source components in modified and unmodifiedform. A certain number of the included open source components underlie the GPL or LGPL or other similar license conditions that require the respective modified orunmodified source code to be made freely available to the general public, this source code is available on http://source.barracuda.com.Please also refer to the chapter Warranty ans Software License Agreement of the Barracuda NG Firewall 5.0.3 Administrator’s Guide documentation located in thedocumentation section on www.barracuda.com and on each accompanying USB thumb drive.Read this document before updating your systemIf you are going to update from release version 4.2 to Barracuda NG Firewall 5.0.3, Barracuda Networks stronglyrecommends to study the Barracuda NG Firewall 5.0 Migration Instructions available for download athttp://barracuda.com/doc, as, under certain circumstances, no countermanding is possible once the updatingprocess was initiated.For in-depth information about new features and changes in terminology introduced with release version 5.0, pleaserefer to the Barracuda NG Firewall 5.0 Migration Instructions downloadable from the same source.Starting with Barracuda NG Firewall 4.2.13, OVA images for VMWare were made available. OVA images based onminor release 4.2.13 have a bug which might lead to loss of the current network configuration when updating toBarracuda NG Firewall minor release 5.0.3.Please make sure to configure your network settings before updating virtual appliances based on 4.2.13 OVAimages using Barracuda NG Admin at least once. Also, a network activation is required.This issue does not apply to fresh installations based on 5.0.3 OVA images.The Barracuda NG Firewall may reboot after installation. If not, Barracuda Networks recommends performing amanual reboot.