Martin
Your question is somewhat ambiguous. When you talk about all IOS do you mean every version? (SDM is supported on more recent versions but not on old versions) or do you mean for every platform (I believe that it is supported on entry level and mid level routers but not on high end routers) or do you mean on every feature set (if it is a supported version and a supported platform I believe that it is supported on every feature set).
If you can clarify you question then perhaps we can give you a better answer.
HTH
Rick
HTH
Rick