I agree with what Fbruneault said. I am running 6.13.1 on the Mac and holding the option key no longer adds the "New Local Notebook" item to the file menu. I use local notebooks at work since it is a violation of our policies to sync company information to third-party sites.
This is the second time in a year that Evernote removed this feature with no warning or announcement. I am a Premium member and an avid Evernote enthusiast (almost an addict) but I find myself, once again, looking for alternatives to Evernote