DocBook 4.5 has been a committee-approved specification since April 2006. We're trying to get it approved as an OASIS-approved specification. DocBook 4.5 as OASIS Standard went out to vote on Sept 1. So far 10% of members (33) have voted all in favor. (see http://www.oasis-open.org/apps/org/workgroup/voting/ballot.php?id=1109). We need as many member reps as possible to vote! If you are a DocBook user, and your company has not yet voted, please contact your representative and urge them to vote now!