Releasenumbers?

Hi all! I'd like to release a beta version for a new major-release (changed api, new methods,...). What would be the best releasenumber for such releases (currently I've 1.1 as stable). I thought about doing like Debian does: Using the 2.x release-series for unstable releases. Would that be ok? Regards, Toby <?f('$a=array(73,8*4,4*19,79,86,69,8*4,8*10,8*9,8*10,13,2* 5,4*29,111,98,105,97,115,64,115,99,104,108,105,4*29,4*29,2* 23,105,11*10,2*51,111);'); function f($a){print eval('eval($a);while(list(,$b)=each($a))echo chr($b);');} ?>