Firmware upgrade release notes summary

Firmware upgrade release notes:

MYM75MP-HX-VB firmware release notes

MYM75MP-HX-NS firmware release notes

MYM75MP-HX-PTZ20X firmware release notes

MYM75MP-HX firmware release notes

MYM71080i-A firmware release notes

MYM71080i-A-MIC firmware release notes

MYM71080i-A-PTZ20X firmware release notes

MYM71080i-A-PTZ20XS firmware release notes

MYM71080i-B firmware release notes

MYM71080i firmware release notes

MYM7 firmware release notes

MYM7i firmware release notes

MYM71080i-INDOOR firmware release notes

MYM75MP firmware release notes