The policy change includes Windows Server -- 2008 R2, 2012 and 2012 R2. Monthly rollups begin in October.
https://blogs.technet.microsoft.com...ervicing-model-for-windows-7-and-windows-8-1/.....
From October 2016 onwards, Windows will release a single Monthly Rollup that addresses both security issues and reliability issues in a single update. The Monthly Rollup will be published to Windows Update (WU), WSUS, SCCM, and the Microsoft Update Catalog.
.....
Also from October 2016 onwards, Windows will release a single Security-only update. This update collects all of the security patches for that month into a single update. Unlike the Monthly Rollup, the Security-only update will only include new security patches that are released for that month.
.....