After the final release of Visual Studio 2015 in the month of July 2015, Microsoft has released the Update 1 CTP version of the all new Visual Studio 2015 IDE. This update has few new features for the developers, bug fixes and known issues. It’s a preview release and hence cannot guaranteed as bug free.
In case you want to try out the latest bits, find the download link in this post. Don’t forget to check out the release notes before downloading it.