User-166373564 posted
Hi,
"Visual Studio 2013 (12.0.21005.1 REL)". What is meaning of REL?
It just means that you can download Microsoft Visual Studio Ultimate 2013 Version 12.0.21005.1 REL. At the same time you can download Visual Studio 2013 Ultimate from Microsoft Download Center.
Visual Studio Downloads:
http://www.visualstudio.com/en-us/downloads
Best regards
Angie Xu