I have Arduino 1.8.4 (which includes Arduino AVR Boards 1.6.20). I recently updated boards to 1.6.23. As a result:
- Arduino AVR Boards 1.6.20 reside in [u]c:\Program Files (x86)\Arduino\hardware\arduino\avr[/u]
- Arduino AVR Boards 1.6.23 reside in [u]%UserProfile%\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.6.23[/u]
The problem is that apparently it's boards 1.6.20 that are in use. Any idea why?
I judge that by the fact that the following 1.6.20 files are used rather than their 1.6.23 counterparts: