Microsoft has published on MSDN the Update 1 (or service pack 1, or whatever we have to call it now) for Windows 8.1 and Windows Server 2012 R2.
It is not yet available through WindowsUpdate or public download but should be available soon.
Benoit's Corner
Personal blog on Microsoft technologies (Exchange, Skype for Business, SharePoint, Office 365,Azure, Intune, SCCM...)
Benoit's Corner
Personal blog on Microsoft technologies (Exchange, Skype for Business, SharePoint, Office 365,Azure, Intune, SCCM...)