Made a few updates to the post - specifically: - es2025 target - new library additions/updates - deprecation of node10 bsky.app/profile/type...

TypeScript 6.0 introduces a new flag: --stableTypeOrdering It's a migration-assist flag to allow comparison of *.d.ts files made by TS 6.0 vs the future TS 7.0 Go compiler ⚖️ TS 7.0 relies on consistent type sorting across the many parallel compiler threads 🧵 devblogs.microsoft.com/typescript/a...

TypeScript 6.0 Beta is out 🎉 🔶 Temporal 🔶 Map#getOrInsert 🔶 RegExp.escape 🔶 #/ prefix for Package Imports New defaults! 🔶 --target=ES2025 🔶 "use strict" 🔷 --strict Deprecations! 🗑️ baseUrl, outFile 🗑️ import assertions 🗑️ `module` namespaces 🗑️ module: amd 🗑️ moduleResolution: node 🗑️ target: ES5

Our tsgo adoption at Vanta has been pretty high-impact. Everything is so, so much faster now.

very excited for our first guest of the e18e & friends show to be @joshuakgoldberg.com! He's done so many great things for open source already, so we're super happy to have him join us to chat about what he's been up to lately! tune in tomorrow 🎉

new release of the @e18e.dev github action 🚀 you can use this to diff changes in your dependencies. e.g. trust/provenance, duplicates, significant size increases, etc. check it out!

you have probably heard that webassembly supports garbage collection. are you looking for an ahead-of-time compiler for wasm with gc? as it happens, i have written a little monograph on the topic wingolog.org/archives/202...

communities grow fueled by the value they create for themselves. npmx is useful to us, and that is enough to bind us together and take care of our website long term. we already won.

TypeScript excitement 😉 Congrats to Lionel-Rowe on landing support for RegExp.escape in upstream TypeScript 🎉 Heading for TS 6.0 Beta next week 👍 github.com/microsoft/Ty...

TypeScript excitement 😉 Congrats to @moriken.dev on landing support for the ES2025 target in upstream TypeScript 🎉 Heading for TS 6.0 Beta next week 👍 github.com/microsoft/Ty...

TypeScript excitement 😉 Congrats to Renegade334 on landing support for @tc39.es "Upsert" in upstream TypeScript. Heading for TS 6.0 Beta next week 🎉 let map = new Map(); map.getOrInsert(key, defaultVal); It sets a default value on a map key with no overwriting. github.com/microsoft/Ty...

TypeScript excitement 😉 Congrats to Renegade334 on landing type declarations for @tc39.es Temporal - the new JS Date-Time API - in upstream TypeScript 🎉 Heading for TS 6.0 Beta next week 👍 Temporal is available in Firefox & Chrome today. github.com/microsoft/Ty...

Started iteration on ESM support in the Node.js embedder API with new overloads that likely will be less prone to ABI breakages as more features are added.. github.com/nodejs/node/... Initial support has released in 25.6.0 nodejs.org/en/blog/rele...

From Chrome 145 (on general release next week!), DevTools we will start to show so called "soft" navigations and "Soft LCP" in the Performance Panel traces. These are for SPAs which don't do a full page load, but instead "fake it" by updating the current page and pushing a new history entry. 1/5 🧵

🚀 Lazy Barrel Optimization in Rolldown Barrel files, files that re-export from other modules, are common in modern JavaScript projects but a nightmare for your build time. Rolldown now has Lazy Barrel Optimization to fix this. Here's how it works 🧵

🔥 NEW BANTER: "Scaling Node.js with the Right Signals: ELU" CPU utilization is lying to you. Your auto-scaler adds pods while your actual bottleneck gets worse. Luca and I explain why ELU is the metric you should be watching. 📅 Feb 4th

we have the first guest to our new e18e & friends monthly show! any idea who it is? 😄

We have a unique opportunity with npmx. We're building something very special together. I want to give myself the chance to focus on helping steward the project. I'm going to be working as an independent open source developer this year. Support my work and help me focus on npmx long-term 🙏

we're 100 contributors in 10 days in the repo.npmx.dev 🙌 join us! let's build together the browser for the npm registry we deserve!

The @e18e.dev project, which systematically speeds up the Node.js ecosystem, has published its 2025 results. Invisible heroes who make life better for all of us. They need our support. e18e.dev/blog/the-yea...

It's been a fun week or two - @npmx.dev launch - @bomb.sh launch - @e18e.dev project leads team created - Google sponsors e18e Much more to come I'm sure!

hey bluesky 👋

This TS evolution toward less transpilation has multiple benefits: 🔷 Deployed code is smaller & normally faster - @e18e.dev have demonstrated this 🔷 Debugging compiled code is simpler - the code resembles what the developer wrote & preserves more semantic intent

what I love most about open source is the community 😊 ... and I think that's what makes nuxt and vite so special to everyone involved ❤️ I'm glad @patak.dev is willing to join me as a steward of npmx 🙏

TypeScript excitement 😉 Congrats to @jakebailey.dev on updating upstream tsc to default to an unpinned *latest* yearly edition of ES20xx. Heading for TS 6.0 🎉 This mean less transpilation of new JS features & more use of native language features provided by JS engines 👍 github.com/microsoft/Ty...

this. I still think @vite.dev would not be vite if not for him. (and others!)

tsdown now has an official AI skill! Install it: npx skills add rolldown/tsdown Your coding agent will know how to configure builds, generate declarations, set up CI validation, bundle WASM, and more. tsdown.dev/guide/skills

It’s happening. Yarn 6 Preview is here 💫 Yes, we rewrote it in Rust 🦀⚡️ I'm incredibly excited for the future of our beloved package manager. See the benchmarks and plans in our latest post:

Today on the pod: Rolldown 1.0 RC, LibPDF for TS devs, import attributes in .d.ts files, Lodash security update, & supertype safety tips! share.transistor.fm/s/16226fb6 #typescript

5 days 47 contributors 68 forks 283 commits 🔥

my first contribution to the better npmjs.com project

New blog post on the journey of the new --build-sea flag and how SEA injection works joyeecheung.github.io/blog/2026/01...

we're working on a new project for tracking the performance of meta-frameworks over time think DX (build times, install size, etc), and runtime (rendering time, runtime size, etc) if you're interested in this area, join us in discord in the perf-tracker channel 🙏

Uh, this is way more interesting than I expected. If you'd like to get involved and help us build a better browser for npm packages, raise your hand. It should be quite a enjoyable project to participate in.

exciting news! we're starting a new monthly live streamed show: e18e & friends. hosted by the great @thealexlichter.com! monthly we will catch up with friends from the community, with a focus on performance and what cool things they've been building lately first guest TBA soon, streaming 10 Feb 🎉

🎉 Very happy I got two of my proposals to Stage 1 at the @tc39.es plenary this week! Both are around improving the DX of common accessor use cases: 1. Composable accessors via built-in decorators github.com/tc39/proposa... 2. Alias accessors: github.com/tc39/proposa...

If you want to have fun and make npm better, sign up here.

🙋‍♂️ so ... for reasons: I would love to know people's frustrations with: - the current npmjs.com - admin user flows on npm web ui (and cli, locally) 🙏

CSS module scripts landed in Firefox 147, so you can import CSS directly into JavaScript.

The first release candidate of Rolldown 1.0 is there. No more breaking changes planned (except for experimental features that are marked as such).

Really wishing that somebody would hire my company (@igalia.com) to standardize/implement support for import maps in web workers. I already have a draft spec PR ready and there is interest from the community, which company wants to be the hero funding pushing it forward? :)

🔥 I've been debugging @nodejs.org performance for over a decade. The hardest part? Making sense of thousands of stack frames in a flamegraph. What if your AI assistant could do that for you? Today, we're releasing a new feature in `@platformatic/flame`. 🧵

ECMAScript excitement 😉 This week @tc39.es advanced/withdrew these proposals: 4️⃣ Upsert: Map.prototype.getOrInsert() 3️⃣ Intl Era/Month Code 2️⃣ import.sync() 1️⃣ Composable Accessors via built-in Decorators 1️⃣ Error Option: framesAbove 1️⃣ Error Option: limit 🗑 Intl.UnitFormat

ECMAScript excitement 😉 Congrats to @bridgear.bsky.social on advancing Error Option Limit to Stage 1 @tc39 today 🎉 It allows the captured stack depth to be limited on a per-object basis 👍 It removes the need to rely on implementation-specific global APIs. github.com/tc39-transfe...

ECMAScript excitement 😉 Congrats to @guybedford.com on advancing Import Sync to Stage 2 at @tc39.es today 🎉 const mod = import.sync(<specifier>); Like Node's require(<specifier>), it synchronously loads a module. It throws if sync loading is not possible. github.com/guybedford/p...

ECMAScript excitement 😉 Congrats to Dan Minor @mozilla.org on advancing the Upsert proposal to Stage 4 at TC39 today 🎉 let map = new Map(); map.getOrInsert(key, defaultVal); It lets you set a default value on a map key without overwriting an existing value 👍

A bumper lineup of important Node.js features that Joyee worked on are now marked as stable 🎉 require(ESM) is the most recognisable.

Rspack and Rsbuild core packages are now pure ESM. Already merged, will be released in v2 🌟

Woah. jQuery migrated to ESM! Come on other big libraries! No excuses now.