add support for Go 1.16

cancel reading on unidirectional streams when the stream type is unknown

remove duplicate check of the URL scheme in the HTTP/3 client

disable fail-fast for all GitHub Actions matrix builds

There's already a check like this performed in the http3.RoundTripper.

increase queueing duration in 0-RTT queue test to reduce flakiness

implement the HTTP/3 Datagram negotiation

Otherwise the stream would remain open indefinitely.

implement HTTP/3 control stream handling

fix flaky sentPacketHandler test

don't retransmit PING frames added to ACK-only packets

move the transport parameter stream limit check to the parser

remove unused initialVersion variable in session

remove unneeded check for the peer's transport parameters

add the H3_MESSAGE_ERROR

simplify Read and Write mock calls in http3 tests

We create a new flow controller when opening a new streams. This can only
happen after the sessi...

Every 20 non-ack-eliciting packets, we add a PING frame to make that
packet ack-eliciting. That ...

implement the datagram draft

fix logging of bytes_in_flight when receiving an ACK

trace when a packet is dropped because the receivedPackets chan is full

The tracing call needs to be issued after subtracting acknowledged and
lost packets from the byt...

various improvements to the packet number generator

introduce a quic.Config.HandshakeIdleTimeout, remove HandshakeTimeout

allow up to 20 byte for the initial connection IDs

reduce memory footprint of undecryptable packet handling

use a buffer from the pool for composing Retry packets

release the packet buffer after sending a CONNECTION_CLOSE in the server

Under normal conditions, we don't expect to receive any undecryptable
packets. We expect to rece...

move integration tests to GitHub Actions, disable Travis

use golang.org/x/sys/unix instead of syscall

add support for the connection_closed qlog event

qlog tokens in NEW_TOKEN frames, Retry packets and Initial packets

qlog the packet_type as part of the packet header, not the event itself

use the new, streaming-friendly NDJSON-based qlog encoding

add a generic Debug() function to the connection tracer

remove unnecessary call to time.Now() when sending a packet

remove support for quic-trace

reduce the maximum number of ACK ranges

check that go.mod is tidied

don't allocate for acked packets

avoid allocating when detecting lost packets

use the string optimization for map keys in the packet handler map

use a single map in the incoming streams map

improve the warning about the UDP receive buffer size