At Microsoft Ignite held in Chicago this week a technical preview of the next version of ConfigMgr was released, which is planned to have final release in Q4.
Next week service packs to support Windows 10 for ConfigMgr 2012 and ConfigMgr 2012 R2 will be released.
((ConfigMgr 2007 (SP2, R2, and R3) support for managing Windows 10 is coming via a compatibility pack in Q4 (OS and client deployment will not be supported)).
Read more here: http://blogs.technet.com/b/configmgrteam/archive/2015/05/04/announcing-support-for-windows-10-management-with-system-center-configuration-manager.aspx
