It looks like each switch in the stack separately.
I've just upgraded one of our N3000 stacks to firmware version 6.5.4.10 (from 6.3.1.13) and boot code U-Boot SPL 2012.1--00079-g20827d2 (May 22 2017 - 16:58:14).  Our current CPLD version is 13. When I try to update the CPLD version, using the command update cpld, I get an Invalid input detected at '^' marker message, with the ^ marker on the c of cpld? I followed up upgrade instructions, step-by-step? Can anybody offer any advice? Many thanks
Attempting update cpld show invalid input?