Flexbox landed in Opera Mobile 12.1 today , and Opera Next (12.10+) as well .
(prefixless) flexbox support for Opera.
Hmmm, I see you merged it, but master doesn't reflect the change: https://github.com/Fyrd/caniuse/blob/master/features-json/flexbox.json#L131?
Sorry about that, looks like something went wrong in my updating process. Fixed now!
#20 Web Bluetooth availability update