Per Adobe's blog post:
Adobe Deployment
For those on the Continuous track of Adobe Acrobat DC, after April's patch the version number will jump from 15.xx to 17.xx.
Hopefully this does not cause issues with scoping and smart groups.
Casper will also start reporting the new version.If there are any software audit scripts that check for version number, they will start reporting a 17.xx version. Remember, if there are any patch deployment scripts which use version number checks before applying a patch, they may need changes to handle 17.xx version number.