It’s your call, but I think you’d be fine watching the course even without the 1.3 updates. It focuses on principles, and those didn’t change between 1.2 & 1.3. From a quick look over lunch, it looks like it new folder structure (under lib instead of parallel to lib) and the new generators are the biggest changes.
Also, I’m not sure what the turn around time would be if I did update to 1.3. Not just with me, but with Pluralsight in general.
/off-topic/ It’s building our own cabin on some property we own. That’s my dad & me, that picture is about 18 months old. We’ve got the structure built, and now we have to do the insides.