There is a confusion, but the system (at least as far as the 2.0 and should be Artisan) is still Marlin. The Ray is actually GRBL. Updated my machine to the latest yesterday, 7 July and here’s the firmware report;
> M115
FIRMWARE_NAME:Marlin SM2-4.7.2 (Github) SOURCE_CODE_URL:https://github.com/whimsycwd/SnapmakerMarlin PROTOCOL_VERSION:1.0
However; I’ve used a GRBL profile to connect to my 2.0 ever since I got the machine years ago, and the “official” lightburn profiles supplied by Snapmaker also list as GRBL. I’ve never had a connection issue, the only issue being it doesn’t understand the GRBL commands sent on connect, but it’s been fine.
Personally, I’ve never had a single issue with any updates affecting my Lightburn usage, so it’s hard for me to help. 