1022: Bun re-written in Rust, Zig team big mad

**Scott Tolinski** (0:00)
What's up, everybody? We are here for another awesome Syntax Weekly. There has been a ton of news in the past week.
Just I feel like that's an evergreen statement. We can just say that forever and ever. My name is Scott Tolinski, and with me as always is CJ Reynolds. What's up, CJ?

**CJ Reynolds** (0:21)
Yo, I'm doing good. I'm excited. I spent the weekend upgrading my network. Now everything is 2 gigabit.
Yeah, but blazing speeds. I learned about SFP plus. Have you used these fiber connectors before?

**Scott Tolinski** (0:35)
SFP plus. No, is that what's in the fiber modem or what?

**CJ Reynolds** (0:39)
No. It's a 10G fiber connection, and that's actually how I have everything routed.
I have my main firewall. It has a 10G connection to my switch, and then that has a 10G connection to my POE switch.

**Scott Tolinski** (0:51)
Wow.

**CJ Reynolds** (0:52)
Yeah, blazing fast.

**Scott Tolinski** (0:54)
So do you need a decoder at that level then, like at each of those levels?

**CJ Reynolds** (1:00)
No. So basically the switches are 2.5 gigabit, and then that 10 gigabit trunk allows the full network to go across it. We don't have to get in the weeds. Maybe we can talk about it later, but I'm excited.
My Internet's fast.

**Scott Tolinski** (1:15)
Heck yeah. Well, we're going to be talking about all kinds of stuff in this episode. TypeScript 7 is here. It is 10 times faster. It is written in Go. This has been in the works for quite a while. Better Auth joins Vercel.
Bun.
The Bun rewrite into Rust has caused drama. We're going to be talking about that as well as some major model updates where GPT 5.6 Soul and the like have been released, as well as Anthropic continues to just put the carrot in front of everybody's face while they continually extend the release or the availability, I should say, of Fable. That and more. Odin 1 Announcement video. All kinds of cool stuff. Grok. Grok be stealing your code. Grok Build is stealing your code. We're going to be talking all about that. So CJ, do you want to get it kicked off with this TypeScript 7 release?

**CJ Reynolds** (2:16)
Let's do it. So if you have been watching Syntax for any amount of time, you've probably heard about this. We were talking about this, I guess, at least a year ago. And we actually had Daniel Rosenwasser, Principal Product Manager, over at Microsoft and working on TypeScript, as well as Anders Helzberg, creator of TypeScript. They were on the podcast to announce when this initially started to happen. And so if you're not up to date on all of that, essentially, the TypeScript compiler used to be written in TypeScript. The compiler itself was written in TypeScript code. And that was fine for a while. But these days, everything's getting rewritten in native. And so they actually ported that TypeScript compiler to Go.
And you can watch that podcast interview with Anders and Daniel and also Wes and Scott. But they basically talked about how a port was the way to go, because it was almost one for one, in a sense. If you take TypeScript code and then write Go code that looks very similar, and then make sure that it's passing the test suite.
So that started happening a little over a year ago. But finally, it's always funny when those announcements happen. You're like, oh, but when are we going to get it? It's never going to come. But it's here. It's here and officially supported in version 7.0. So they also had a slow onramp for this. So if you installed TypeScript version 6, there were various things that might have been deprecated or things that you would make sure that you are ready for the TypeScript 7 upgrade. So if you've done that, at this point, you can basically just swap it out. And your builds will be 10 times faster. So that's the headline here. Is this native port can build code bases 10 times faster. And you install it the same way as you used to, npm install-d TypeScript. And if you're using version 7, now under the hood it's going to be using that more native version.
But what does this mean for the average developer? Really, you're just going to be moving faster.
Basically, all of the tools that you use on a daily basis are benefiting from TypeScript 7 So VS Code is a massive TypeScript code base. And with TypeScript 6, before the native port, it used to take 125 seconds to build that whole code base. Now it only takes 10 seconds with TypeScript 6