World of Warcraft: Warlords of Draenor enters alpha testing
World of Warcraft's next expansion, Warlords of Draenor, has entered the alpha testing phase.
Those wishing to participate in the expansion's upcoming alpha test are invited to opt in through the beta profile settings on their Battle.net account. Blizzard will also introduce a new proprietary file format called CASC (Content Addressable Storage Container) during the Warlords of Draenor alpha and beta tests. CASC offers better support for streaming data, increased performance, faster and more reliable game updates, client hotfixing and prevents file corruption. The company aims to convert all players to the new format in a pre-expansion patch.