The standard libraries are still 14, not 15. We're still linking with msvcp140.dll, for example. As far as the compiler and standard libraries are concerned, VS 2017 is a VS 2015 update release. Billy3 ________________________________ From: Boost <boost-bounces@lists.boost.org> on behalf of Beman Dawes via Boost <boost@lists.boost.org> Sent: Monday, March 13, 2017 12:34:52 PM To: Boost Developers List Cc: Beman Dawes Subject: [boost] [build] VC++ 2017 version number? Boost.build in develop is treating VC++2017 RTW (aka RTM) as msvc-14.1. Yet the Visual Studio 2017 RTW Help "About Microsoft Visual Studio" shows the version as "15.0.0-RTW+26228.4" Shouldn't boost.build follow Microsoft's numbering? Seems like calling 2017 RTW anything except 15.0 is a recipe for confusion. --Beman _______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost