v2.6.3

What's Changed

• [CP] Fix portable certificate context cleanup (#6344) by Guillaume Hetier (@guhetier) in #6352
• [CP] OpenSSL: Eliminate RECORD_ENTRY receive buffering (#6314) by SanthoshShetty (@Santhosha-bk) in #6375
• [CP] Validate stream receive buffer size (#6302) by SanthoshShetty (@Santhosha-bk) in #6377
• [CP] Fixed divide by zero receive window (#6364) by SanthoshShetty (@Santhosha-bk) in #6378
• Bump version to 2.6.3 by Guillaume Hetier (@guhetier) in #6379
• [CP] Prevents an all-zero PATH_RESPONSE sent before a PATH_CHALLENGE from validating the path (#6382) by Guillaume Hetier (@guhetier) in #6390
• [CP] Fix Ack of a retransmitted RETIRE_CONNECTION_ID causing use-after-free of a CID (#6383) by Guillaume Hetier (@guhetier) in #6389
• [CP] Fix uint16_t underflow in QuicStreamSendWrite (#6384) by Guillaume Hetier (@guhetier) in #6386

Full Changelog: v2.6.2...v2.6.3