I got some useful information from our Enterprise Support team which I want to share. Its certainly worth being aware of this….
Autodesk are pleased to announce new Update releases for Revit 2015.The following files will be available for download via the Autodesk Application manager:
• 2015 R2 (includes UR4 and the latest Hotfix) - Subscription Advantage Pack customers
• 2015 UR4 for regular customers where the license registration is not tied to a subscription contract
You have to choose from either 2015 R2 or 2015 UR4 as they cannot be installed alongside each other.
If Revit 2015 has not been registered , then you will not be presented with either update.
• Revit 2015 R2 w/ ENU docs - is available via the Subscription Center under downloads.
By 6pm EST, September 19th:
• Revit 2015 UR4 w/ ENU docs - will be available for download via AKN (.com)
All remaining languages for download via Application Manager, documents in Subscription Center and AKN, will be published within the following week.”