id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc 13167,"""Unknown compiler version ..."" with 1.64 on Visual Studio 15.3",Tim Bergel ,,Visual Studio 2017 version 15.3 (4.7.02046) has upped the _MSC_VER define to 1911 (I think previously 1910 in 15.2). This gives a lot of warning messages with 1.64 - I have not tried 1.65 but the release notes do not mention this - and I am reluctant to simply hack boost_1_64_0\boost\config\compiler\visualc.hpp as of course there may actually be an issue. What to do?,Bugs,closed,To Be Determined,None,Boost 1.65.0,Problem,fixed,compiler _MSC_VER,gfurnish@… daniel.kruegler@…