Qnap TS-462 upgrade

[Enquiries]

Good morning ... EXCELLENT Youtube videos!!! A couple of questions (if I may). I currently have a Qnap TS-269L with 2 3TB drives that I use for photo backup (amatuer photographer) and as a "server" for documents, little music, and littler video. Without doing enough research, I purchased 2 8TB Seagate Ironwolf dives to replace the 3TB's. They're not on the Qnap approved list and my 269 is quite old. I've convinced myself to purchase the TS-462. From Qnap tech I should be able to take the 2 existing 3TB drives from the 269 and install them in the 462, then replace the drives 1 by 1 to the 8TB. However, on Qnap's website, there is a caveat that says if the raid was created before a certain firmware, it won't work. Any advice? Does this sound like a logical upgrade? Hoping to take advantage of my "free" 2.5gbe connection on my ISP modem and motherboard

Thanks in Advance
Cheers

PS VERY happy with my current setup, hasn't given me a moments issue!