Here: https://parsers.org/announcements/tokenization-enhancements-with-some-tips-and-tricks/
If I do something significant, I at least try to put up a blog article about it, but this is the first blog entry I have put up in nearly a year! JBut I've been doing some stuff! CongoCC now has a built-in Rust parser. See: https://github.com/congo-cc/congo-parser-generator/blob/master/examples/rust/Rust.ccc But I'll announce that later.
In any case, the blog article I point to above came about because of the work I did on the Rust grammar/parser recently, but you could find it useful or interesting even if you're not into Rust. It makes some generally useful points, particularly about tokenization, that any CongoCC user could likely find helpful.
All feedback is welcome!