I took the SDK manual as source for checking the current SDK level:
https://developer.garmin.com/connect-iq/compatible-devices/
It says as example, D2 Charlie has SDK 3.0.0

But the compiler states, it has only 2.4.1:
WARNING: Device name: 'D2 Charlie' Part number: '006-B2994-00' CIQ ver: '2.4.1' is being ignored by the package tool because it does not support the minimum API Level set for this project
What is correct? Installed SDK is the newest one. All device definitions are up to date - no updates available.
There are some other devices with a similar error.
Device compiler statement SDK manual
D2 Chalie 2.4.1 3.0.0
Oregon 7 2.2.3 3.0.0
Rino 7 2.4.1 3.0.0
Edge 820 2.4.1 3.1.0
Edge 1000 2.4.2/2.4.1 (different part nr?) 2.4.0
Edge 520 2.4.4/2.4.1 (different part nr?) 2.4.0