Packet Tracer 6.2 fixes several bugs reported in previous versions and includes a new Cisco 819 router, a wired sniffer with repeater functionnality and some new 3G/4G devices (3G/4G cell tower and central office (CO) server) as well as 3G/4G support for end devices (phone, tablet, server, …)
Packet Tracer 6.2 is fully supported on Windows 7 and Windows 8 or 8.1. Support for Windows XP has been stopped by Cisco in this new version.
Download : Cisco Packet Tracer 6.2