• [FEATURE] QUIC and HTTP/3 Internet Draft 31 support. Drop ID-30 and ID-31 support.
• [BUGFIX] Divide-by-zero in newly enabled conn stats code when no packets were sent.
• [BUGFIX] Memory leak in gQUIC client when server hello cannot be parsed.
• [BUGFIX] Server Initial packet size calculation.
• Log user-agent and CONN_CLOSE reason when peer reports error.
• Example programs: Specify ALPN for echo and md5 clients and servers (issue #184).
• Example programs: Don't add "QUIC_" prefix to lines in keylog file (issue #185).
• http_server: Fix fd leak in preadv mode; fix preadv() usage when reading from disk.