# Firmware v1.75 for AR5 - NEW - Sep 2026

Release Date: September 21st 2026

Models: AR5 and AR4

Firmware Download
[https://github.com/AlatoNZ/AR5_Firmware_Release/releases/download/firmware_1.75/arm.boot]


This update has some back end bug fixes to make the scheduling logic more
robust.


What's New

 * Improved GPS logic.

 * Bug fix for an intermittent RTC wake up is, logic improved,