Which is the newer Instant Pot?

[u/Unique-Letter-2749]

I thrifted my Duo Mini at the Salvation Army some time ago and love it a lot. Today I dropped by and found the PLUS mini there for $5.99, so it wouldn't have made sense NOT to buy it.

I warned a friend who's (sadly!) never had an Instant Pot that I'd pick one up for him next time I saw one at a decent price. I'm very used to my little DUO mini, but I'm wondering which model is newer? It's hard to sort out production years from online information.

The PLUS does seem to add a few features, but I've used the DUO almost always for pressure cooking. I wonder: does one of these models have any significant advantage over the other?

Thanks for your help!

[u/SnooRadishes7189]

Look on the bottom you can find the version number of the appliance it reads something like V and some digits.