Yes, some "underexposing" bug corrected when using flash, Thambar 90 and Nocti 75 included and..... a Summilux-M 90/1.5 hidden in the firmware ¡¡!!For the M9, M Monochrom- Mostly to add recently introduced lenses.
I still keep my M9 at 1.176- the last version that did not get too paranoid about batteries. I don't have the newer lenses, so did not upgrade.
1.010 firmware in your MM was the firmware not available for the public, just installed in factory with the new sensor (new light transmission coefficient and glass data -probably a BG55 from Schott-). The equivalent in the M9 was the 1.204 .Brian: My (M9) Monochrom has version 1.010 firmware. That version was release in April 2016. I believe that's what it came back from NJ with after my sensor replacement. Is that the equivalent of the M9 1.176? I have several third party batteries, and so far, no trouble.