Format is CSV with these columns

Format: “F” for firmware entry

Rev: “R” followed by revision number this applies (ie, “R56”)to, or “*” for any version.

Version: Firmware integer version of this file; will compare to current version of Vindor

Version Text: Pretty version, such as 1.0.3.

URL: URL of ZDF file; must be a direct download

F,R55,2,1.0.3,https://vindormusic.squarespace.com/s/firmware-20180521.zdf
F,R56,4,1.0.4,https://vindormusic.squarespace.com/s/vindor-firmware-20190114.zdf