I came to this thread b/c my MacPro inadvertently updated to 10 from Legacy, and now I'm dealing with the fallout, which is quite vast. One of the worst things that update did was corrupt a rather large note, let's call in Note A. I sent a trouble ticket to EN, they said they'd "escalated" it to a senior tech--- that was over a month ago, have heard nothing. Can't wait any longer and I need to use Note A. Booted up my older MacBookPro who is still on the comfortable Legacy version, turned off WiFi, attached my backup drive which should have the uncorrupted version of my Note A,. I searched in the directories listed above ( /Users/<username>/Library/Group Containers/Q79WDW8YH9.com.evernote.Evernote/CoreNote/accounts/www.evernote.com/) but all I see are tons of folders with encrypted names, within which the only readable content is a webclipping here or there.
I own EN Plus, not Premium, or whatever the upgrade version is called now that allows you to search Note History. If I were to purchase that, would it be able to find a version of Note A from six weeks ago? Or would it only start the "note history" feature from date of purchase of upgraded EN version?