[Off-topic, as pointed out below, but I’m leaving it in case others make the same mistake 
]
This is a bit odd. I know there was an update circulating recently (Nov. 29?) because it solved the problem of the network provider’s name taking up valuable notification space. It was mentioned here
but as far as I know there was no official notice from Fairphone in the usual way. I’m beginning to wonder whether the update seen by some like Baptiste wasn’t just a trial run on some networks like we saw in France early November (for FP3 A10 3.A.0130).