The problem is that a red square due to this change (that could have been avoided if you had given us warning) will mask other problems, so it slows development. For instance, John put in some type_traits changes that inevitably broke something, somewhere, but for him to find his errors in the sea of red will not be easy.
Anyway 3 years should've been enough to get rid of tools that were announced deprecated.
Sure. The problem is that the Test lib is one of those core libraries, like type_traits, where changes ripple through and can cause a lot of problems. We just need to know when deprecated bits are being removed, because it's very likely that some of us didn't even know they were deprecated until they were gone.
So can someone undertake the search and replace (BOOST_TEST->BOOST_CHECK) if that will fix the problem? John.