Author | Lightnews

Sean McArthur @seanmonstar.com · 19h

New #rustlang @hyper.rs v1.8.0 release out now!

Highlights:

- `rt::Timer` can override `now()`.
- Fix internals of HTTP/2 extended connect upgrades.

github.com/hyperium/hyp...

Release v1.8.0 · hyperium/hyper

Highlights Features rt: add Timer::now() method to allow overriding the instant returned (#3965) (5509ebe6) Bug Fixes http1: fix rare missed write wakeup on connections (#3952) (2377b893) http2:...

github.com

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Sean McArthur @seanmonstar.com · 15d

When I started learning, I fully embraced `new` to start, and `describe` when I'm done (or describe with a wip name if it's taking a while). Instead of `commit` always leaving me on an empty change.

Perhaps a shell prompt could note when @ is empty? I dunno, I don't have something that fancy yet.

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Reposted by Sean McArthur

rain 🌦️ @sunshowers.io · Oct 3

New blog post: Cancelling async #rustlang!

This is a written version of my talk at #RustConf 2025, where I talk about the joys and sorrows of future cancellations in Rust, with lessons from our work at @oxide.computer. Includes a video of the talk as well. Check it out!

Cancelling async Rust ꞏ sunshowers

Correctness in the face of cancellations: a written version of my talk at RustConf 2025.

sunshowers.io

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Reposted by Sean McArthur

TokioConf @tokioconf.com · Sep 26

The TokioConf 2026 call for talk proposals is now open! tokio.rs/blog/2025-09...

The TokioConf 2026 Call For Talk Proposals is now open | Tokio - An asynchronous Rust runtime

Tokio is a runtime for writing reliable asynchronous applications with Rust. It provides async I/O, networking, scheduling, timers, and more.

tokio.rs

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Sean McArthur @seanmonstar.com · Sep 16

I've been working on a proposal for composable HTTP pool utilities for hyper-util, several of them have implementation PRs linked at the bottom. I welcome any feedback! #rustlang

github.com/hyperium/hyp...

Proposal: hyper-util composable pool services · Issue #3948 · hyperium/hyper

Problem hyper's "legacy" pool did many things at once, and needed to support the ability to turn off various parts of it. Users often ask to be able to customize parts of the connection pool. Eithe...

github.com

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Reposted by Sean McArthur

Rust Language @rust-lang.org · Sep 12

We received reports of a phishing campaign targeting crates.io users. Do not click on links asking to authenticate to protect your account. More information: blog.rust-lang.org/2025/09/12/c...

crates.io phishing campaign | Rust Blog

Empowering everyone to build reliable and efficient software.

blog.rust-lang.org

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Sean McArthur @seanmonstar.com · Sep 2

I was recently on the Netstack.fm podcast, and had a fun time talking with Glen about:

- the beginning of hyper, and async #rustlang
- as the ecosystem grew
- the development of crates like hyper-util, headers, warp, reqwest
- being independent
- 5 years from now

seanmonstar.com/blog/podcast...

Podcast: Netstack.fm, story of Rust's networking with hyper

Last week I was a guest on the Netstack podcast. We talked abit about how I got into Rust, how async Rust developed, and the story behind hyper and its surro...

seanmonstar.com

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Sean McArthur @seanmonstar.com · Aug 13

A new HTTP/2 MadeYouReset vulnerability disclosed (VU#767506).

@hyper.rs handles it just fine, but we also provided some patches to help.

#rustlang #security

seanmonstar.com/blog/hyper-h...

hyper HTTP/2 (Didn't) MadeYouReset

A new HTTP/2 attack vector was disclosed today called MadeYouReset. hyper’s h2 is negligably affected, weathering the attack well. But, we have provided patc...

seanmonstar.com

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Reposted by Sean McArthur

Sean McArthur @seanmonstar.com · Aug 12

Really excited about the #rustlang reqwest v0.12.23 just out! 🦀

- Introduces `reqwest::retry`, an easy builder to make safe automatic retries.
- Adds Unix Domain Socket support.
- And of course more.

github.com/seanmonstar/...

Release v0.12.23 · seanmonstar/reqwest

tl;dr 🇺🇩🇸 Add ClientBuilder::unix_socket(path) option that will force all requests over that Unix Domain Socket. 🔁 Add ClientBuilder::retries(policy) and reqwest::retry::Builder to configure autom...

github.com

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Sean McArthur @seanmonstar.com · Aug 12

Really excited about the #rustlang reqwest v0.12.23 just out! 🦀

- Introduces `reqwest::retry`, an easy builder to make safe automatic retries.
- Adds Unix Domain Socket support.
- And of course more.

github.com/seanmonstar/...

Release v0.12.23 · seanmonstar/reqwest

tl;dr 🇺🇩🇸 Add ClientBuilder::unix_socket(path) option that will force all requests over that Unix Domain Socket. 🔁 Add ClientBuilder::retries(policy) and reqwest::retry::Builder to configure autom...

github.com

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Reposted by Sean McArthur

Sean McArthur @seanmonstar.com · Aug 6

Here's the write up for the `warp` v0.4 release!

- Filters remain the focus
- Upgrade to hyper v1
- Crate features on a diet
- Iterating on the Server builder (and API design in general)

seanmonstar.com/blog/warp-v04/

#rustlang

warp v0.4

Yesterday, warp v0.4 was released. warp is a Rust web server framework, with a focus on functional programming and type system routing.

seanmonstar.com

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Sean McArthur @seanmonstar.com · Aug 6

Here's the write up for the `warp` v0.4 release!

- Filters remain the focus
- Upgrade to hyper v1
- Crate features on a diet
- Iterating on the Server builder (and API design in general)

seanmonstar.com/blog/warp-v04/

#rustlang

warp v0.4

Yesterday, warp v0.4 was released. warp is a Rust web server framework, with a focus on functional programming and type system routing.

seanmonstar.com

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Sean McArthur @seanmonstar.com · Aug 5

So far we've backported important fixes to #rustlang hyper v0.14, but after almost 2 years, I think that's pretty close to done.

Please upgrade to v1 to get the latest fixes.

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Reposted by Sean McArthur

Sean McArthur @seanmonstar.com · Aug 5

Just released #rustlang warp v0.4! 🦀

This includes an upgrade to hyper v1, and cleans up the crate features a bit so you can choose what to enable (less is on by default).

Most of the API stayed the same (the examples and tests barely needed any changing). 🚀

github.com/seanmonstar/...

Release v0.4.0 · seanmonstar/warp

Changes: Upgrade to hyper, http, and http-body to v1. Remove multipart and websocket features from being enabled by default. Put warp::serve() behind a server feature, not enabled by default. Put ...

github.com

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Sean McArthur @seanmonstar.com · Aug 5

Just released #rustlang warp v0.4! 🦀

This includes an upgrade to hyper v1, and cleans up the crate features a bit so you can choose what to enable (less is on by default).

Most of the API stayed the same (the examples and tests barely needed any changing). 🚀

github.com/seanmonstar/...

Release v0.4.0 · seanmonstar/warp

Changes: Upgrade to hyper, http, and http-body to v1. Remove multipart and websocket features from being enabled by default. Put warp::serve() behind a server feature, not enabled by default. Put ...

github.com

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Sean McArthur @seanmonstar.com · Jul 30

Considering reqwest should default to faster TCP disconnection: github.com/seanmonstar/...

fix: add default tcp keepalive and user_timeout values by seanmonstar · Pull Request #2780 · seanmonstar/reqwest

It seems reasonable for an "opinionated" HTTP client to help detect dead connections faster.

github.com

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Sean McArthur @seanmonstar.com · Jul 29

Hm, I wonder why that change was made...

git blame: "Me, 8 years ago"

*emotional damage*

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Reposted by Sean McArthur

Dirkjan Ochtman @djc.ochtman.nl · Jul 20

I’ve been maintaining the Rust flamegraph implementation for three years, releasing about every 3 months on average. Consider sponsoring my work if it’s been valuable to you(r team).

Adam Chalmers @adamchalmers.com · Jul 19

Cargo flamegraph's new version uses Xcode's tracer under the hood, so flamegraphing your rust code no longer requires sudo (which then messes up permissions on your build artifacts). It's a small thing but it's made flamegraphing my Rust code on MacOS so much more pleasant.

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Sean McArthur @seanmonstar.com · Jul 15

Exploring easy HTTP redirects in #rustlang reqwest! 🦀

This adds a builder to configure how retries work, while helping you do so responsibly. And the goal is to upstream what we can to tower.

seanmonstar.com/blog/reqwest...

reqwest retries

One part of working on a more modular reqwest was adding support for retries.

seanmonstar.com

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Sean McArthur @seanmonstar.com · Jun 23

Want to help #rustlang reqwest switch its default to rustls? Here's the medium-effort mentored issue: github.com/seanmonstar/...

Switch default TLS to rustls · Issue #2723 · seanmonstar/reqwest

We want to change the default TLS library used by reqwest from native-tls to rustls. We will still offer native-tls as an option, since some people need it for some reason or another. But the vast ...

github.com

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Reposted by Sean McArthur

TokioConf @tokioconf.com · Jun 19

Hello World! Announcing the inaugural TokioConf. April 20-22, 2026, in Portland, OR. tokio.rs/blog/2025-06...

Announcing TokioConf 2026 | Tokio - An asynchronous Rust runtime

Tokio is a runtime for writing reliable asynchronous applications with Rust. It provides async I/O, networking, scheduling, timers, and more.

tokio.rs

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Sean McArthur @seanmonstar.com · May 28

This transitively (ish) includes a happy eyeballs fix that improves hickory-dns in reqwest.

Give it a try, it should be faster and better for your system overall (and it'd be nice to make it the default on reqwest).

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Sean McArthur @seanmonstar.com · May 27

New #rustlang reqwest v0.12.16 out now! 🦀

- Several HTTP/3 improvements.
- A redirect limit off-by-1 fix.
- Add headers for a proxy.

Includes internal refactors of types now in hyper-util or tower, like redirects, proxy matchers, and proxy connectors!

github.com/seanmonstar/...

Release v0.12.16 · seanmonstar/reqwest

Highlights Add ClientBuilder::http3_congestion_bbr() to enable BBR congestion control. Add ClientBuilder::http3_send_grease() to configure whether to send use QUIC grease. Add ClientBuilder::http3...

github.com

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Sean McArthur @seanmonstar.com · May 19

New #rustlang hyper-util v0.1.12 out now!

This one has the things. Part of making reqwest "more modular".

- A proxy matcher type that can use environment/system variables.
- SOCKS and HTTP Tunnel connector adapters.
- Graceful shutdown made more flexible.
- Bug fixes!

github.com/hyperium/hyp...

Release v0.1.12 · hyperium/hyper-util

tl;dr Add client::legacy::proxy::Tunnel connector that wraps another connector with HTTP tunneling. Add client::legacy::proxy::{SocksV4, SocksV5} connectors that wraps another connector with SOCKS...

github.com

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Sean McArthur @seanmonstar.com · May 12

I have this suspicion that as JavaScript devs get a taste through TypeScript, they started to desire a much better type system and end up in #rustlang.

Was that you?

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