Beta testers running the 8.5 beta version of Messenger were alerted to an update today - for the first time via Windows Update.
Windows Live Messenger 8.5今天首次升级，快下载吧！
Windows Live Messenger:
http://g.live.com/1rebeta/WLMsgr85_en-us
http://g.live.com/1rebeta/WLMsgr85_zh-cn
Windows Live Mail:
http://g.live.com/1rebeta/WLM_en-us
http://g.live.com/1rebeta/WLM_zh-cn
Windows Live Writer:
http://g.msn.com/4SAWLWENUS/WriterMSI
http://g.msn.com/4SAWLWZHCN/WriterMSI