[boost] Responsibility for orphaned libraries

The mysterious disappearance of Jonathan Turkanis (not heard from here since last October; home page says he's at UCB, but a directory search at UCB does not find him) set me wondering about the risk of using Boost libraries. Like iostreams, they are generally one-man works, which may be beyond an end user's ability or remit to maintain. Even if the author does not disappear, he may eventually lose interest or simply be too busy to maintain it forever, so do Boost have any procedures in place for such eventualities?