Last night I was writing a blog post about how to use const generics. I included instructions on installing Rust Beta, and setting your directory to use the Beta compiler instead of Stable. I started to write a disclaimer like "By the way, this will be stabilized in a future version of Rust, probably on..." and realized that const generics were being stabilized in less than 9 hours! So I removed all that stuff.
If you're interested in some concrete examples of using const generics to write faster code, my post on them is here: https://blog.adamchalmers.com/grids-2/
If you're interested in some concrete examples of using const generics to write faster code, my post on them is here: https://blog.adamchalmers.com/grids-2/