On 2 July 2018 at 19:22, Robert Ramey via Boost
But many/most users don't have the latest MSVC version
Given how easy the upgrade process has become, I suspect, you're wrong here. Also, users (not corporate ones, but they are not going to adopt Boost 1.68 either at release time anyway, so that's irrelevant) are looking forward now to the (C++17) stuff that will work (and doesn't yet work with their current version, a minor version difference can and will make all the difference).
- and the library has to work on at least the most recent ones.
Today's Preview is tomorrow's Stable, and will be outdated 2 weeks later, that's how things are if you really "wonna make some progress" (you should see the number of bugs and fixes on vcpkg, it's impressive), it's a wild ride, but it's fun. As you are a dev of an important library, your stable is today's Preview. degski