@moocat @Stricted @Dist Trying to work that out with the team. Will keep you posted!
@josephcricket The why is really just to enable more features in the future as stated in the blog. I can’t be more specific. Sorry!
@GaryTheCoolGuyIII Basically, what @alca said. 
v3 is the default until it is removed. We don’t want to break integrations that don’t specify a version.