Best Modem Firmware update for the X-3000: R01 vs R03

I have noticed that GLi.Net host two Firmware versions for the Quectel RM520 Modem, which one is the best for the X-3000? Thanks

RM520NGLAAR01A08M4G_01.203.01.203.zip

RM520NGLAAR03A03M4G_01.201.01.201.zip

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based on the source of the FW link, it's R03.

Thank you, for the information