Fish shell announces 4.0 release

fish is a shell with a custom language and several affordances not available out of the box in other shells, such as directory-sensitive command completion. Although the project does not normally make beta releases, the

newly announced 4.0 release
will have one in order to ensure that no problems were introduced

after a major effort to switch the code base from C++ to Rust.

fish is a smart and user-friendly command line shell with clever features that just work, without needing an advanced degree in bash scriptology. Today we are announcing an open beta, inviting all users to try out the upcoming 4.0 release.

fish 4.0 is a big upgrade. It's got lots of new features to make using the command line easier and more enjoyable, such as more natural key binding and expanded history search. And under the hood, we've rebuilt the foundation in Rust to embrace modern computing.