refactoring a wxPython app to use 2.8.7.1

Is there some guidelines to refactor and application depending on wx ver 2.8.6..1 to use wx 2.8.7..x ?
At the moment I can get to app to work with the wxver trick, but I want to fully integrate it with my current app which is using 2.8.7..1

*Erik Vandamme

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