More details here: https://www.reddit.com/r/rust/comments/qkcf7l/announcing_rust_1561/?utm_medium=android_app&utm_source=share

bgp or utf updates?

ah, unicode, more or less utf :)

@lupyuen haha, doing a point release to introduce a lint to catch a potential, language-independent, security issue published in a scientific paper on the same day, after having verified that no such attack is currently present in the ecosystem, is such a rust thing to do :D