Hi.. I would like to know the major difference between PDM Vault environment of SolidWorks PDM 2015Sp2.1 and Solidworks PDM 2017sp5 ?
This may not be the answer you are looking for as you may want just a few quick bullet points of the 'big changes' but I'll put the "what's new" for PDM 2016 and 2017 below and you could have a quick scan over them for all changes. Maybe someone will have a quick list of the changes between the two versions you mentioned to be more precise.
Hope this helps in some way.
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