http://oss.software.ibm.com/icu/ http://oss.software.ibm.com/pipermail/icu/2003-March/005406.html
We do not have any plans so far to do this for anything but normalization, but we have APIs for the DerivedAge property which tells you which code points were designated/assigned in which Unicode version. You could use a UnicodeSet patter of [:Age=3.2:] for example to get a set of all code points with a DerivedAge value of 3.2 or lower.
markus
Simon Josefsson wrote:
Does anyone know of a unicode library that provides a versioned API?
With "versioned API" I mean a method for the application to request that, e.g., unicode normalization is performed according to the rules specified in a specific Unicode version instead of simply the latest unicode version that the library implements.

