This release comprises 285 commits since 4.2.1, contributed by 27 authors, 15 of which are new committers.
Deprecations and removed features
fish no longer sets universal variables by default, which simplifies configuration. Specifically, the fish_color_*, fish_pager_color_* and fish_key_bindings variables are now set in the global scope by default. After upgrading to 4.3.0, fish will (once and never again) migrate these universals to globals set at startup in the ~/.config/fish/conf.d/fish_frozen_theme.fish and ~/.config/fish/conf.d/fish_frozen_key_bindings.fish files. We suggest that you delete those files and set your theme in .
fish 4.3.0 - fish-shell Release Notes | AnnounceHQ
~/.config/fish/config.fish
You can still configure fish to propagate theme changes instantly; see here for an example.
You can still opt into storing color variables in the universal scope via fish_config theme save though unlike fish_config theme choose, that does not support dynamic theme switching based on the terminal’s color theme (see below).
In addition to setting the variables which are explicitly defined in the given theme, fish_config theme choose now clears only color variables that were set by earlier invocations of a fish_config theme choose command (which is how fish’s default theme is set).
Scripting improvements
New status language command allows showing and modifying language settings for fish messages without having to modify environment variables.
When using a noninteractive fish instance to compute completions, commandline --cursor works as expected instead of throwing an error (#11993).
fish_trace can now be set to all to also trace execution of key bindings, event handlers as well as prompt and title functions.
Interactive improvements
When typing immediately after starting fish, the first prompt is now rendered correctly.
Completion accuracy was improved for file paths containing = or : (#5363).
Prefix-matching completions are now shown even if they don’t match the case typed by the user (#7944).
On Cygwin/MSYS, command name completion will favor the non-exe name (foo) unless the user started typing the extension.
When using the exe name (foo.exe), fish will use to the description and completions for foo if there are none for foo.exe.
Autosuggestions now also show soft-wrapped portions (#12045).
New or improved bindings
ctrl-w (backward-kill-path-component) also deletes escaped spaces (#2016).
New special input functions backward-path-component, forward-path-component and kill-path-component (#12127).
Improved terminal support
Themes can now be made color-theme-aware by including both [light] and [dark] sections in the theme file. Some default themes have been made color-theme-aware, meaning they dynamically adjust as your terminal’s background color switches between light and dark colors (#11580).
The working directory is now reported on every fresh prompt (via OSC 7), fixing scenarios where a child process (like ssh) left behind a stale working directory (#12191).
OSC 133 prompt markers now also mark the prompt end, which improves shell integration with terminals like iTerm2 (#11837).
Operating-system-specific key bindings are now decided based on the terminal’s host OS.
Focus reporting is enabled unconditionally, not just inside tmux. To use it, define functions that handle the fish_focus_in or fish_focus_outevents.
New feature flagomit-term-workarounds can be turned on to prevent fish from trying to work around some incompatible terminals.
For distributors and developers
Tarballs no longer contain prebuilt documentation, so building and installing documentation requires Sphinx. To avoid users accidentally losing docs, the BUILD_DOCS and INSTALL_DOCS configuration options have been replaced with a new WITH_DOCS option.
fish_key_reader and fish_indent are now installed as hardlinks to fish, to save some space.
Regression fixes:
(from 4.1.0) Crash on incorrectly-set color variables (#12078).
(from 4.1.0) Crash when autosuggesting Unicode characters with nontrivial lowercase mapping.
(from 4.2.0) Incorrect emoji width computation on macOS.
(from 4.2.0) Mouse clicks and ctrl-l edge cases in multiline command lines (#12121).
(from 4.2.0) Completions for Git remote names on some non-glibc systems.
(from 4.2.0) Expansion of ~$USER.
Thanks to everyone who contributed through issue discussions, code reviews, or code changes.
Welcome our new committers: Denys Zhak, ELginas, Gleb Smirnov, Juho Kuisma, Julio Napurí, Kristof Mattei, Nikita COEUR, PowerUser64, Tair Sabirgaliev, Toyosatomimi no Miko, Zhizhen He, huaji2369, oliwia, xtqqczze, チセ
Welcome back our returning committers: Asuka Minato, Branch Vincent, Daniel Rainer, David Adam, Fabian Boehm, Jesse Harwin, Johannes Altmanninger, Nahor, Peter Ammon, exploide, phanium, seg6
Download links: To download the source code for fish, we suggest the file named fish-4.3.0.tar.xz. The file downloaded from Source code (tar.gz) will not build correctly. A GPG signature using this key is available as fish-4.3.0.tar.xz.asc.
The files called fish-4.3.0-linux-*.tar.xz contain standalone fish binaries for any Linux with the given CPU architecture.