izevaka/SignalR-ObjC — comment on commit 7077570761eca9251e5d1bc4de313833e72670ce
File:  line 0
By izevaka:

This will enable forward compatibility where older clients continue to work with newer servers. This just happened by mistake - an extra parameter was added to one of JabbR callbacks which meant that that callback was never called. IMHO the framework should let the application handle this gracefully, as the application can't handle an exception on the AFNetworking callback thread.