If you get ads, popups, notifications from VersionValidation, your Mac is infected with adware. VersionValidation is adware for Mac.
VersionValidation changes setting on your Mac. First, VersionValidation installs a browser extension in your browser. Then, after VersionValidation hijacks your browser, it modifies the settings in the browser. For example, it changes the default home page, modifies search results, and displays unwanted pop-ups in your browser.