One thing that we’ve made clear over the last few months, beginning with TechEd North America, TechEd Europe, WPC and in conversations with customers: Windows 8.1 is designed with businesses in mind. Windows 8.1 Enterprise RTM comes with a host of new capabilities only available in the Enterprise edition, as well as new industry-leading security features.
Beginning today, TechNet and MSDN subscribers will now have access to Windows 8.1 Enterprise RTM. This also includes access for Volume License (VL) customers with an active Software Assurance (SA) agreement, as you receive a TechNet subscription as part of SA.
Source: Windows
Still happy with my MS TechNet subscription for MCT's! :)
Starting today, we will extend availability of our current Windows 8.1, Windows 8.1 Pro and Windows Server 2012 R2 RTM builds to the developer and IT professional communities via MSDN and TechNet subscriptions. The Windows 8.1 RTM Enterprise edition will be available through MSDN and TechNet for businesses later this month. Additionally, today we’re making available the Visual Studio 2013 Release Candidate which you can download here.
Source: Steve "Guggs" Guggenheimer's blog
Happy that my MS TechNet subscription is still active! :)