• Various improvements to handling of keepalive timers (#2760 by @davidfiala)
• Fix a bug causing unary response client requests to hang when unexpectedly receiving multiple messages (#2772)
• Fix a bug causing some requests to fail when making requests through a local proxy (#2746 contributed by @mjameswh, backported in #2777)
• Fix handling of URL-encoded user credentials in proxy configuration (#2761 contributed by @brendan-myers, backported in #2777)
• Fix missing client-side handling of the grpc.max_send_message_length channel option (#2779)