I want to know the answer to the following question:
When did MSDN and TechNet users gain access to Windows 8.1?
All the background I'm provided with is that "Volume license customers and subscribers to MSDN Plus and TechNet Plus were initially unable to obtain the RTM version upon its release; a spokesperson said the policy was changed to allow Microsoft to work with OEMs "to ensure a quality experience at general availability."". Is that enough to answer the question?