v0.22.0

Features

• use ReadBatch to read multiple UDP packets from the socket with a single syscall
• add a config option (Config.DisableVersionNegotiationPackets) to disable sending of Version Negotiation packets

Breaking Changes

• drop support for QUIC draft versions 32 and 34
• remove the RetireBugBackwardsCompatibilityMode, which was intended to mitigate a bug when retiring connection IDs in quic-go in v0.17.2 and ealier

Other Notable Changes

• fix busy-looping caused by a certain loss pattern (#3231)
• fix behavior of exported errors when using errors.Is (#3215)
• update qtls to include the fix for the recently discovered crypto/tls panic

v0.21.2

• update qtls (for Go 1.15, 1.16 and 1.17rc1) to include the fix for the crypto/tls panic (see https://groups.google.com/g/golang-dev/c/5LJ2V7rd-Ag/m/YGLHVBZ6AAAJ for details)
• fix busy-looping caused by a certain loss pattern #3231

v0.21.0

quic-go now supports RFC 9000!

v0.19.2

• fixes the way packets are padded by using PADDING frames instead of random data outside the QUIC packet (#2876), which could lead to invalid packets for very short server certificates
• fixes usage of the syscall package (#2886)

v0.19.0

• adds support for QUIC draft-32 (draft-29 is still supported)
• add DialEarlyContext and DialAddrEarlyContext (#2814)
• increase the kernel UDP receive buffer size (#2791)
• add support for HTTP CONNECT (#2761)
• read ECN bits and send ECN counts in ACK frames (#2741)
• fix busy looping when using OpenStreamSync (#2824)
• fix QPACK static table entry (#2845)

... and a lot more