Overview
This page contains release notes pertaining to firmware for Zonar Telematics Control Units, also known as TCUs or GPS units.
Firmware version numbers are formatted as EGPS-X.#.###_MM-DD-YYYY:
| X | 3 | Firmware for the V3 family |
| 4 | Firmware for the V4 family | |
| #.### | Version number | |
| MM-DD-YYYY | Date of release | |
Checking Firmware Version
You can verify firmware versions for each of your TCUs in the Ground Traffic Control GPS Units Report.