Latest firmware for Roland A-80

I am currently in the middle of cleaning-up, replacing aftertouch sensors, re-greasing keys etc. and otherwise showing some TLC to my beloved A-80 keyboard. My board is currently running version B 1.04, but I saw somewhere that there were further firmware updates (maybe up to version 1.09 )?
Does anyone know what was the latest update that Roland put out for the A-80? (Also, any idea on how can I get my hands to EPROM contents - I do have my own EPROM programmer) …

Thank you in advance for any info!!!