When IOS 10 came out, I couldnt wait to see RAW support in the Flickr app... Im still waiting. Several small start-ups with free apps were able to add RAW support within a few weeks of IOS 10s launch. Why its taking Flickr so long is beyond me but hey "Great features are on the way!". Dont hold your breath.
Additionally, the app more time that not simply wont fully start, instead deciding to load indefinitely. Ive found that restating my SE AT TIMES works, but theres no guarantee the app will run.
10mdg about Flickr, v4.3.0