[boost] boost versioned namespace ?

I am seeking advice on how I could package some of boosts libraries as part of a library I am writing. Given: "libboost_1_35" a boost lib at ver. 1_35 which is used by my "libmy". I need to be able to ship binary versions of "libmy" and "libboost_1_35". A customer writing an application "app" and using "libmy" and "libboost_1_39". The problem: libboost_1_39 and libboost_1_35 likely will have common symbols, which either prevents the customer to use 1_39 or forces me to also upgrade to 1_39 (altough everything is fine with 1_35). The questions: What would boosters recommend? Is there a way to use kind of a versioned boost namespace? Regards, speedsnail