alt Hacker NewsLooks interesting, but they're going to try writing it in Swift?
If you're writing a browser engine in C++, I may not like it, but I can see that you're pragmatic and are focused on the end result rather than the language. If you're writing it in Rust, okay, you maybe have your eyes on that pie in the sky, but you've chosen a language that, at least potentially, has the ability to replace C++ in creating bedrock software.
Any other language and I feel like someone with a lot of political capital at the company just has a personal preference for the language and so, "yeah, we're going to rewrite it all in Swift"[0].
I mean, you're writing a browser. Do you really want to build it in a language that is at the "it's improving" stage of support for the most popular operating systems?
You should look into why they chose it and what their implementation plan is. They evaluated multiple languages, including rust. There were some specific issues with rust that made it unsuitable for them. Swift was a bit of a dark horse candidate that the developers ended liking.
There is no immediate plan to switch to anything so it’s still C++. They may not ever switch. Swift’s cross platform support isn’t there yet and that’s a prerequisite.