[boost] Boost CRC maintainer (Daryle Walker) missing in action?

Hi, It looks like the Boost CRC maintainer (Daryle Walker) is missing in action? No response to tickets from the past 3 years. What's the procedure in this case? https://svn.boost.org/trac/boost/ticket/2492 https://svn.boost.org/trac/boost/query?component=crc&col=id&col=summary&col=cc&col=status&col=owner&col=type&order=priority Greetings, -- Olaf