[Typo3-dev] third party application integration

[Sylvain Viart]

Hi,

What is the way to follow the evolution of a third party application 
when I decide to integrate it as TYPO3 extension ?

Say, I integrate version 1.1 of the application W.
What happen when W go to version 1.2 ?

Should I rewrite my extension code ?

Is there some discussion, documentation, URL about following a third 
party application development in another application ?
-- 
Regards,
Sylvain Viart
TYPO3 DocTEAM.