There are some other things pointing to this version...
Bigger problem is not missing calendars (this appears only if you make reset of device for iOS 9.3.x either by restoring of backup or through cleaning reset as new device) but impossibility to download new - button 'Add' is missing. Button could be missed because new location is not available. 😟
From other side there is a reasonable explanation why in actual versions of iOS 9.x they have wrong pointer to download resource - Apple prepare iOS 10. Any critical security fixes found there and fixed for iOS 10 should be propagated to lower supported versions (in our case 9.3.x). If any of these fixes where related to dictionaries mechanism then the small piece of code with wrong address could be just propagated from iOS 10 to iOS 9.3.x branch. See previous post:
maxim_k wrote:
Previously dictionaries download address pointed to "ios9.1" folder, but now it points to "ios10.0" folder.
So we can predict - either Apple will recognize mistake and fix it separately for iOS 9.3.x (other version could be not impacted as code merge to every version usually is separate operation) or problem will be fixed by upgrade ro iOS 10 - we see that for iOS 10 they already have correct address.
Let's push Apple service as much as possible and point to 'impossibility to add new dictionary' (to my mind this is correct point for pushing) so this will have a chance to be seen by them and maybe receive a fast fix.