Minor Notepad++ 6.8.8 bug(?)
I had what was probably the version prior to 6.8.8 installed, and was editing a new document into which I had pasted lengthy text. I used the Clone To Other View option so I could see more of the text on the (wider than tall) screen.
After updating to 6.8.8, the Release Notes opened in the “Other View” (the one on the right, as the foreground tab there), but both its tab and the left view’s tab were highlighted. I believe that only one tab should be highlighted at a time, so the left view’s tab should have been de-highlighted (as the right view’s tab of my original document had been).