Hello zeus1996,
I'm not sure to understand your statement... it was always like that... since at least CMOD V2.X
If you define an application with data Type "PDF", then in order to view it in the CMOD Windows Client, then you MUST have the acrobat standard version. BUT in WEBi or ICN, then you can simply use the Acrobat Reader without problem.
If you define an application with data Type "user defined" .PDF, then you just need Acrobat Reader for every client (windows, ICN, WEBi, ...) The integration of PDF in the windows client will not be the same as the acrobat standard.
If you don't want to have acrobat standard, then you need to make sure that all your application are using the latter choice (user defined .pdf).
Sincerely yours,
Alessandro