https://developer.garmin.com/connect-iq/compatible-devices/
In fact:
- the device file for 945 LTE indicates CIQ 3.4.2
- the latest 945 LTE firmware has CIQ 3.4.3
Interestingly, 3.4.x and 4.2.x are both "System 6" which is where the confusion may have arisen.
To this day, ppl still misunderstand the CIQ System Level scheme in the Garmin forums and elsewhere on the internet.
The 945lte is CIQ 3.4.2 per the latest CIQ device configurations
It's not system 6.
This is a quote from a seasoned CIQ developer who has repeatedly insisted that while the System Level scheme may be confusing to others, they understand it.
Anyway ig it's a moot point now that System 7 is CIQ 5 only (and only covers devices which had CIQ 4.2), which means all the CIQ 3 devices are finally left behind, and there's only one firmware track.
Honestly if it were up to me, I would bump the CIQ version to 8 for the next major release, so that CIQ 8 = System 8, and the System level scheme can finally be retired / ignored.