v7

[ronag]

• llhttp (@metcoder95 merges next branch) - feat!: upgrade llhttp to 9.2.0 (#2705) #3388
• remove deprecated interceptor api (@metcoder95 merges next branch) chore!: drop interceptors #3399
• dispatcher API issues (@mcollina, @ronag, @metcoder95 )
• fetch stuff
  • remove polyfills (@KhafraDev has already prepared PRs)
• add alternative to onHeaders with pre-parsed headers (@ronag )
• diagnostics channels (@mcollina )

We start with merging the next branch into main (@metcoder95) and then start working actively on v7 with a deadline relative to Node v23.

[metcoder95]

Shall we consider the exposure of the lenient flags from lhttp as part of this?

[mcollina]

Shall we consider the exposure of the lenient flags from lhttp as part of this?

Yes, I think so.

[Uzlopak]

How can i support?

[KhafraDev]

• diagnostics channels

is this something we're absolutely landing?

Also hopefully #2727 is included in the fetch stuff, it's slightly older so I'm hoping it won't get missed.

[metcoder95]

How can i support?

Would you like to support adding the lenient flags for llhttp @Uzlopak?

[metcoder95]

I was kicking off the work for the lenient flags, but I just noticed that most of them as marked as opening a security vector if enabled; do we want to enable that within undici?

By default they are disabled sure, but do we want to expose the users to that possibility?
I'd consider to not do so, cannot imagine under which circumstances (beyond legacy servers) you might want to enable this

[b2whats]

Why was dropped interceptors ? What should i use instead ?

[metcoder95]

Interceptors hasn't been dropped, but rather refactored into a new API.
Check: https://undici.nodejs.org/#/docs/api/Dispatcher?id=dispatchercomposeinterceptors-interceptor

[Uzlopak]

can the npm package next point to v7?

[Uzlopak]

[mcollina]

That's done.

---

On a different topic, I think we might want to release v7 before Node.js v23, to be included there.

[metcoder95]

Backported some of the work done for interceptors and smaller fixes at core.

[mcollina]

Do we want to make v7 before v23 is cut? nodejs/Release#1034

[Uzlopak]

Yes.

[trivikr]

Is undici@v7 going to drop support for Node.js 18.x?

[mcollina]

Not right now. However, if we miss the deadline for Node.js v23 (seems likely), we will definitely be dropping it, as Node.js v18 goes EOL April 2025.