Do I need to update firmware?

[Misterjeff]

So, I've a "plain" Mars and on the Elegoo site there's the 4.3.4 firmware - "for C motherboards". How do I know if I have a C motherboard - do I need to open 'er up?
The system info says V4.3.1 _LCDF /1440x2560 /F2.12 and the sticker on the base says M10 20190902 C. 

Could that C mean the motherboard?

Thanks in advance!