sys.poweroff_system() moved to cx16
sys.set_leds_brightness() moved to cx16 and changed to set_led_brightness, you can only change the activity led brightness.
Unfortunately a few routines (minf, maxf, clampf) remain unchanged, because removing the 'f' would make them clash with a builtin function.
floats.rndf -> floats.rnd
floats.parse_f -> floats.parse
floats.rndseedf -> floats.rndseed
floats.print_f -> floats.print
floats.str_f -> floats.tostr
for cx16: removed cx16diskio (merged everything into its regular diskio module)
for cx16: the load() and load_raw() routines that took an extra ram bank parameter are gone. You have to cx16.rambank() yourself before calling load().
