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|
+++
date = "2019-09-27T07:00:00+01:00"
title = "Gun 2.0 pre-release 1"
+++
Gun `2.0.0-pre.1` has been released!
The first pre-release version of Gun 2.0 has been released!
Gun 2.0 adds a ton of features along with a small number of
breaking changes.
Before listing the features please note that this pre-release
includes a fix for a potential security vulnerability! This
only applies when Gun is used inside a proxy under specific
circumstances. Please see the migration guide for details.
Since the issue also exists in the previous version I have
released Gun `1.3.1` as well that fixes this issue.
Much of my focus for Gun 2.0 has been improving the support
for connecting through proxies. Gun now supports both Socks5
and CONNECT proxies, but most importantly Gun is now able
to tunnel TLS connections through TLS proxies. Gun is also
able to tunnel connections through any combination of proxies,
for example Socks5 TCP to CONNECT TLS to Socks5 TLS to origin
server using TLS.
Gun does not support HTTP/2 CONNECT yet but this is a planned
feature that will be the main focus for the next pre-release.
Along with it support for Websocket over HTTP/2 will be added
since it reuses the HTTP/2 CONNECT mechanism.
Other features include the graceful shutdown of connections;
flow control for data messages; or event handlers with many hook
points for instrumentation and other purposes.
While experimental at the time of the pre-release, Gun can
now be used to send and receive non-HTTP/Websocket data.
Gun can therefore be used as a Socks/CONNECT client for
any protocol. Gun can also use the HTTP/1.1 Upgrade mechanism
to switch to any protocol. This feature will be documented
before the Gun 2.0 release.
The HTTP/2 code has seen numerous fixes thanks to merging
Gun's and Cowboy's code together. In addition Gun will now
receive HTTP/2 response bodies much faster than before thanks
to better defaults and optimizations.
Gun 2.0 currently requires Erlang/OTP 20 or above and is tested
and supported on Linux, FreeBSD, macOS and Windows.
A complete
list of changes can be found in the migration guide:
https://ninenines.eu/docs/en/gun/2.0/guide/migrating_from_1.3/[Migrating from Gun 1.3 to 2.0].
I will have more free time available for consulting or for
paid open source development starting from next week. If you
are interested, drop me an email at mailto:[email protected][[email protected]].
I have gathered that there's interest in a pure Erlang GRPC
implementation, and there's also QUIC and HTTP/3 that will
be ready soon, for example of projects I'd be interested in
working on.
You can donate to this project via
https://salt.bountysource.com/teams/ninenines[BountySource].
These funds are used to pay for additional servers for
testing. We will soon add two Raspberry Pi 4 in order
to have some ARM targets when testing. (The Pis are here!
Just need to install now.)
As usual, feedback is appreciated, and issues or
questions should be sent via Github tickets. Thanks!
|
