The Swift Performance team isn’t *my* team, but they’re in my hallway. Or in London if you’d prefer. They’re looking for an engineer who’s not afraid of optimizers. jobs.apple.com/en-us/detail...

This is one of the strangest and most screwed-up stories I’ve worked on. www.londoncentric.media/p/tiktok-lon...

Good day! Inspired by thehftguy.com/2026/01/22/d... I took off my phone sockets to check what's behind. Turns out: CAT 5e! Found three separate cables, previously daisy chained. Ordered RJ45 sockets to replace phone sockets and undid daisy chains. Soon Ethernet in the flat, psyched!

Quite a few groups seem to be rather successful making many of us believe the opposite. So please note! Some things are getting meaningfully better.

FOSDEM, the legendary open source gathering in Brussels, is coming soon, and we'd love to see you there! We've got multiple talks on Swift plus a pre-FOSDEM community meetup. Whether you're a longtime attendee or new to the event, come say hi! 👋 swiftlang.github.io/event-fosdem/ #FOSDEM

Happy New Year, @swift.org crew! So happy to be back, I hope everyone enjoyed some time off.
 If you're looking to catch up on Swift news, check out the December digest: www.swift.org/blog/whats-n... and let me know what you think!

What should we call wholewheat (partially rye?) bread? I guess only Germans like that, so let's go with 'German bread' 😅. It's really yummy btw!

👏 Super cool to get Swift on the server showcased at reInvent

🎉 10 years of open source Swift! A decade ago today, we opened Swift to the world with a simple blog post: swift.org/blog/welcome What's grown since—thanks to an incredible community of contributors—has been extraordinary. Here's to the next ten years. 🧡

We'd be happy to see you at the inaugural Swift for Wasm Community Hour on 3rd of December! More details in this post on Swift Forums: forums.swift.org/t/swift-for-...

⚙️ Swift progress on embedded Swift, for memory-safe, fast code in resource-constrained environments. The latest updates are coming to Swift 6.3, and you can read more here: www.swift.org/blog/embedde... #IoT

Ever since the parliamentary wars of Brexit, the UK media and Westminster bubble craving for drama seems to have increased exponentially. What is technically still a relatively 'new' Labour government with a huge absolute majority is already (portrayed?) as fighting with its lasts gasps.

Very cool to see AWS and the Swift community work on this together aws.amazon.com/blogs/openso...

Cat's marketing department is ... something. Seems like they're making gas turbines in a facility they call "Solar Turbines". Under the Oil & Gas category, of course.

Observability is the key to understanding how your system performs and where problems are occurring. Moritz Lang and Si Beaumont gives us the run down on how it works in Swift! www.youtube.com/watch?v=HSxI...

Nice writeup about plans wrt. the #swift typechecker by @[email protected]

A post from @joannis on the #Swift blog about the new preview of the Android SDK for Swift www.swift.org/blog/nightly...

Made a little thing that may help you profile your services from within their own process -- no extra privileges or tools required.

Isn't that too beautiful? PM2.5 of an overnight pyrolytic oven clean starting at 1am. Still woke up at 3am on account of bad air, despite closed doors and open windows in kitchen...

It's been an incredible year for the conference. We had attendees from 6(!) continents come together for an amazing 3 days of workshops, talks and meeting each other face to face. Thank you to all the volunteers and speakers, it's been truly special

The new Swift configuration API makes the most of Swift's type checking and expressivity to make it eady to solve common config tasks. @czechboy0.dev walks us through its features @serversideswift.info forums.swift.org/t/introducin...

2025 - that's a wrap #swiftlang #serversideswift2025

If a team that lived in C and Go can build production container infrastructure in Swift, the language is ready for serious server-side systems work. - Eric Ernst, Apple #swiftlang #serversideSwift2025 github.com/apple/contai...

#ServerSideSwift was so great. Fantastic to (re)connect with people from literally all over the world. Loved the very positive energy and the buzz around all the new stuff & maturity refinements around the existing tech. Most importantly thank you @0xtim for putting up this amazing show again!

Dropped my last coffee beans on the floor this morning. Was desperate enough that I picked them all up and made a coffee. Guess it's 99% arabica & 1% random dirt 🙈

Ever wonder how to write safe and fast code to run on your server ? Ever considered the open source Swift programming language ? Maybe it's time

The conference has always been about bringing the community together and growing Swift on the server. So to help, we're dropping the price of the beginner workshop to just £25! This workshop from Apple will teach you everything you need to get going! Tickets - www.serversideswift.info/tickets/

Swift 6.2 is here, including so much 🆕🥳: ⏩Approachable concurrency 🦺Opt-in strict memory safety 📦WebAssembly support 🏃Faster build perf for macros 🐞Enhanced async debugging 📚Inline stack-based arrays 🚇Subprocess support 🧪Test result attachments www.swift.org/blog/swift-6...

With ✨Swift 6.2 ✨, you can now target WebAssembly, including WASI support. Get started here: www.swift.org/documentatio... #Wasm

Who else is going to #ServerSideSwift? Two weeks to go, can't wait to hear what y'all have been up to! To make the deal even sweeter, I hear there's tasty 15% off discount code for www.serversideswift.info/tickets/: COMMUNITY15

Yup! I confused a lot of people when I used the UK version in a meeting a few months ago 😛

🤩

Wow. Check this out. Politicians actually trying to solve problems can achieve a lot! www.washingtonpost.com/climate-solu...

Need a fast key/value datastore? The portfolio of Swift packages for building high-performance internet-scale services grew further this week with the preview of Valkey support: valkey.io/blog/valkey-...

Very excited to see the first cut of github.com/valkey-io/va..., which supports really lovely structured concurrency integration for accessing the client, pipelining commands, mixing that with transactions, and more! #swiftlang #valkey

3 ways I used LLMs to actually learn Swift - A thread🧵 Who isn’t using AI to learn these days? But it’s not just about shortcuts—it’s about learning smarter. Here’s how I used LLMs as a beginner 👇

@steipete.me Just checked out steipete.me/posts/2025/v... : Excellent product, thanks for sharing this (and the other) articles!! Really happy you gave Hummingbird a try. Quick Q though: You write Xcode was difficult leading to giving up on Swift. Why not vanilla SwiftPM over Xcode&xcodebuild?

Go Lionesses, Euro champs again!!! 👏🏴󠁧󠁢󠁥󠁮󠁧󠁿⚽️

Prolly obvious if you know how LLMs work: They compute tokens left to right, no "thinking" followed by output. I think that's also what makes the reasoning models much better: They use the model to interrogate the model many times. So their context window will have all the info and then they answer.

Fun limitation of LLMs (w/o tool use): Letting them ramble improves their abilities. Going step-by-step, having it output everything allows it to spread a computation across more tokens. Example: Random maths problem that likely wasn't in the training set "sin(cos(sin(tan(1.2))))" 🧵

Really appreciate the honesty @0xtim.bsky.social . Folks, go buy tickets! The conference is really great!

"How to Put Swift in a Box" w/ Euan Harris :)) @ #OSSummit

i’m so excited this is out there in the world now!!! 🥹🥹 #swiftlang #containers github.com/apple/container github.com/apple/containerization

👏

“The new service had a much smaller memory footprint per instance — in the 100s of megabytes — an order of magnitude smaller compared to the 10s of gigabytes our Java implementation needed” 🤯📉↘️ swift.org/blog/swift-a...

Tickets for server side #swift conf in london are up for sale now! Last year was really really good, can't wait to see what use-cases and experience reports we'll see this time :-) #swiftlang https://www.serversideswift.info/tickets/

Heh, only realised today that a 'grape' and a 'grapefruit' are kinda confusingly named 🤓. On the first day I assumed somebody moved the sign, only on the second day I realised what likely's going on 💡

🎟️ Just booked my ticket. Hope to catch up with and meet many more of you in October!

Apple has open sourced Swift OPA — read about the details here: blog.openpolicyagent.org/introducing-...

Coming to WWDC? Come hang out with fellow server side Swift enthusiasts! We're hosting a meetup with @communitykit.bsky.social - come say hi! There may be stickers... meetu.ps/e/P4swT/zf1k...