ConfigMgr and SCEP (version 1511) Generally Available now!

As for today (December 8th) ConfigMgr and SCEP (version 1511) are available! They can be downloaded from the Microsoft Evaluation Center, MSDN, and Volume Licensing Service Center. ConfigMgr 1511 (YYMM versioning) was designed to work with Windows 10, and gives you multiple options to deploy, update, and manage Windows 10 in the way that makes sense for your business.

With the new ConfigMgr (ConfigMgr as a service) it's no longer needed to install servicepacks, cumulative updates and additional hotfixes. With the Service connection point (connects ConfigMgr to Microsoft cloud services, used for Microsoft Intune, and to update and service your ConfigMgr installation) this will be done easier from now on! Have a look at this blogpost for more information on that.
 

This release provides key new capabilities:
Deploy/upgrade/provision Windows 10: ConfigMgr supports a variety of fast, efficient ways to deploy or upgrade devices to Windows 10.
Keep Windows 10 up-to-date: Once devices are running Windows 10, enterprises must keep them up-to-date to ensure they are properly secured.
More frequent and easier to install updates: ConfigMgr is now designed to make it easier to update without going through complex individual upgrades.
Manage Windows 10: You can manage devices using the traditional ConfigMgr agent and, when integrated with Microsoft Intune, also via cloud or on-premises MDM.

ConfigMgr provides an improved unified device management platform for customers using ConfigMgr integrated with Microsoft Intune to manage PCs, servers, and mobile devices. This release enables faster updates to bring new Intune features to your hybrid deployments.

Have a look at Removed and Deprecated Features for Configuration Manager to see differences between ConfigMgr 2012 and 1511.

Have a look for more information:
System Center Configuration Manager Overview
System Center Configuration Manager Team Blog