I have figure out that in the new ZoomSDK version 5.10.6.7530
were refactored deprecated methods.
Methods were marked as NS_DEPRECATED_MAC
in the past
but now methods are marked DEPRECATED_MSG_ATTRIBUTE
.
And there is some problem in Swift now - methods that marked as DEPRECATED_MSG_ATTRIBUTE
are required to implement.
On picture you can see that Xcode added deprecated method
onCustomVideoSubscribeFail
to conform to protocol: