My guess would be that HTTP-GET requests were collected and the information about the OS was extracted.
If this would be true, the reason of this spike could be that one big browser randomly decided to not send OS information in GET requests and then the “bug?” was found and fixed.
It depends on how the data was retrieved.
My guess would be that HTTP-GET requests were collected and the information about the OS was extracted.
If this would be true, the reason of this spike could be that one big browser randomly decided to not send OS information in GET requests and then the “bug?” was found and fixed.