iothub_client/src/iothub_client_core_ll.c (2 lines):
	- line 2798: // TODO (ewertons): fix the http error status below.
	- line 2885: // TODO (ewertons): fix the http error status below.


iothub_client/src/iothub_client_ll_uploadtoblob.c (1 line):
	- line 461: // TODO: proxy username and password can be set through SetOption, but are not used (it was the previous behavior as well). Bug?


iothub_client/src/iothubtransport_mqtt_common.c (1 line):
	- line 2636: // TODO: The preview API version in SDK is only scoped to scenarios that require the modelId to be set.