[!] fix sending duplicated ACK when no pkts received on Standby paths.
[+] reinject frames which will affect stream delivery.
[~] optimize mpquic scheduler according to path quality and path status.
[!] fix sending RESET_STREAM and STOP_SENDING frames in Initial and Handshake packets.
[!] fix delivery priority of HANDSHAKE_DONE frame blocked by server's STREAM frames responding to 0RTT requests.
[!] fix CID rotation when multipath is enabled.
[!] fix sending duplicated ACK when no pkts received on Standby paths. [+] reinject frames which will affect stream delivery. [~] optimize mpquic scheduler according to path quality and path status. [!] fix sending RESET_STREAM and STOP_SENDING frames in Initial and Handshake packets. [!] fix delivery priority of HANDSHAKE_DONE frame blocked by server's STREAM frames responding to 0RTT requests. [!] fix CID rotation when multipath is enabled.