I love the changes to the `rustup doc` command.<p>I first learned to program in Perl on a FreeBSD machine. (No GUI, mind you.) I had no way of browsing the internet, so my only source of documentation was via `perldoc`. Perl's documentation was so good I didn't ever need to go online.<p>Now, every time I encounter a new language, one of my favorite things is seeing the documentation available off-line, accessible via the command line. (Either directly from the terminal or opened in a browser.)<p>I've loved seeing the Rust community take documentation and error messages so seriously. It's nice to see this level of care.
That updating the nightly toolchain gets more convenient is fantastic. It was oftentimes a struggle, especially when there was no build with all required components listed as present in the toolchain status history[1].<p>[1]: <a href="https://rust-lang.github.io/rustup-components-history/" rel="nofollow">https://rust-lang.github.io/rustup-components-history/</a>