Question [Q] Difference between P6 and Mate?

This forum topic is dedicated to the P6 and Mate, so obviously they have to be somehow "compatible", otherwise it wouldn't be a shared topic.

In what way are they similar (I can also read the tech specs, so that's not what I mean)? I'm actually referring to the pending 4.4.2 release for the P6, while nobody mentions the same upgrade for the Mate. Is anything like that coming? Is the release of the P6 4.4.2 a lead-in to the same release for the Mate?

I'm also a bit confused on the developer section of this forum. Again, in the Mate topic, almost everything deals with the P6.

Anyone care to explain to a Huawei Mate owner who desperately needs >= 4.3 to do some experimenting with BLE?

TIA all