The Yamaha AN1x Synthesizer mailing list

I see that there is a v1.03 OS update for the AN200 available at the 
yamaha.com site. Does anyone know what this update adds and/or 
corrects?  I was a little bit surprised to see that because back 
when there was still an uproar about AN200/DX200the note skipping 
bug Yamaha said that the AN200 (and DX200 for which there is no new 
OS) did not have an updateable OS (?)

(I've also contacted Yamaha to try to find out how to access the 30+ 
arpeggio patterns that are said to be built into the PLG-150AN 
board.  I'll also try playing around with the expert editor again 
this evening to see if the arpeggio feature is just buried somewhere 
that I missed.)