Humans be like: "I did this".

Just read: "Junior[s] have always been useless." Hm. I've found Conway (1968) to be true instead: > We should take particular note of the fact that the quantum jumps in compiler design progress were associated with new groups of people on territory previously trampled chiefly by [experts].

Finally finished my "2025 in review" post. They always take longer than I think. But it's always so valuable to reflect, follow the story, and extract the lessons. seanmonstar.com/blog/2025-in...

Early bird pricing for TokioConf 2026 ends in just a few days. If you’ve been thinking about joining us this April, now’s a great time to grab a ticket before prices increase. Get your ticket: www.eventbrite.com/e/tokioconf-...

Finally finished my "2025 in review" post. They always take longer than I think. But it's always so valuable to reflect, follow the story, and extract the lessons. seanmonstar.com/blog/2025-in...

the copilot thing smells just like google+ a decade ago

Latest #rustlang h2 release v0.4.13 out! - API support for 1xx responses - Fixes for DATA frame padding and stream capacity when pending github.com/hyperium/h2/...

I'm imagining a native-rustls crate, which uses rustls on unix, and schannel on windows, and the user doesn't have to care, like native-tls.

rustls is definitely much better, and aws-lc-rs is likely a good idea but i'm frustated at how poor the experience is for windows users

To end the year, a new major version of #rustlang reqwest, v0.13.0 is out! 🚀 - This brings rustls by default, replacing native-tls. 🦀 - Some feature and method cleanup. - But easy to upgrade for most everyone. seanmonstar.com/blog/reqwest...

why yes i did want to debug cmake on android

To end the year, a new major version of #rustlang reqwest, v0.13.0 is out! 🚀 - This brings rustls by default, replacing native-tls. 🦀 - Some feature and method cleanup. - But easy to upgrade for most everyone. seanmonstar.com/blog/reqwest...

Just published a new #rustlang reqwest release candidate: v0.13.0-rc.1. This has some breaking changes, the biggest was switching to rustls by default. I'd appreciate if you gave it a spin 🙏 github.com/seanmonstar/...

Just published a new #rustlang reqwest release candidate: v0.13.0-rc.1. This has some breaking changes, the biggest was switching to rustls by default. I'd appreciate if you gave it a spin 🙏 github.com/seanmonstar/...

New #rustlang reqwest v0.12.27 out now! - Adds Windows Named Pipe support. github.com/seanmonstar/...

Announcing @hyper.rs composable pool layers! We took the various aspects of a connection pool and made them into individual layers to combine as needed. This is something I've been thinking about for years, I'm so glad it's finally coming out. #rustlang seanmonstar.com/blog/hyper-u...

Announcing @hyper.rs composable pool layers! We took the various aspects of a connection pool and made them into individual layers to combine as needed. This is something I've been thinking about for years, I'm so glad it's finally coming out. #rustlang seanmonstar.com/blog/hyper-u...

New post: a defense of lock poisoning in Rust. Followup to recent discussion: decided to write about lock poisoning, looking at the arguments on each side, and informed by our experience at @oxide.computer dealing with the parallel problem of unexpected async cancellations Please give it a read!

I'm excited to announce the first @hyper.rs user survey! If you've used hyper (or related libraries) just a little or a whole bunch, providing feedback is invaluable and should take less than 5 minutes. Give it a go! seanmonstar.com/blog/hyper-u... #rustlang

While I never want to _deal_ with poison, I do want the invalid state propagated. I like one suggestion I've seen: - lock() just panics on poison, no Result - try_lock() let's you try to recover from poison for the 1%

Incredibly disappointed (shocked even) that the plan is to make the default Rust mutex not poisonable in the 2027 edition. Poisoning is one of the best examples of Rust focusing on rigor, and removing it from the default mutex would be a massive step backwards.

I'd strongly consider the compiler yelling at me (besides my brain already) at `unwrap()` calls. But I have two cases that are common enough: - Mutex::lock(), which well yea ok go boom please - A field that is only an Option to support moving out in Drop

I'm excited to announce the first @hyper.rs user survey! If you've used hyper (or related libraries) just a little or a whole bunch, providing feedback is invaluable and should take less than 5 minutes. Give it a go! seanmonstar.com/blog/hyper-u... #rustlang

“We adopted #rustlang for its security and are seeing a 1000x reduction in memory safety vulnerability density ... with Rust changes having a 4x lower rollback rate and spending 25% less time in code review, the safer path is now also the faster one.” security.googleblog.com/2025/11/rust...

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...

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

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...

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...

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...

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...

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/...

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/...

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

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

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.

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/...

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/...

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

Hm, I wonder why that change was made... git blame: "Me, 8 years ago" *emotional damage*

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).

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...

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

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

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/...

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...

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?

A new @hyper.rs proposal: Body::poll_progress When piping a body into a sink, how can we forward cancelation when backpressure is applied? #rustlang 🦀 seanmonstar.com/blog/body-po...

I'm so excited to welcome katelyn martin as a @hyper.rs Collaborator! 🎉🎉 #rustlang 🦀 hyper.rs/blog/2025/04...

Another case where I don't like booleans: `filter`. Because of natural English, my brain assumes I'm "filtering out" things, but programming usually wants me to ... filter in? Keep whatever is true.