[kevingadd]

Interior pointers and WRs are both basically mandatory, yeah. I have faith they'll arrive eventually.

I think incremental progress is generally great, but since we already have 'all of .NET' in WASM by shipping our own GC, end users seem like they wouldn't be happy with 'we use WASM GC now and all of your code is broken'

EDIT: We also have dependent handles in a few places, and I'm not sure how you'd do those without a more sophisticated GC. But it's probably possible and they're at least not used as widely as WRs.

[neonsunset]

Quite a bit of code may end up relying on a CWT because a dependency uses assembly-unloading-friendly cache internally, hopefully it fails gracefully once .NET switches to WASM GC...