Version 0.12 has been released six months after 0.11, bringing many new features and bugfixes.

As usual, prebuilt binaries can be found in get.

Breaking Changes

• The shared: namespace has been removed.

• Line continuations now use backslashes instead of backquotes, in line with POSIX syntax.

• The resolve builtin now returns a string.

• The variables $edit:loc-{pinned,hidden} have been moved into the edit:location: namespace, now $edit:location:{pinned,hidden}

• The variable $edit:arg-completer has been moved to $edit:completion:arg-completer.

Notable Fixes and Enhancements

• The Elvish package manager has landed (thanks to @zzamboni!).

• A str: module has been added (#576).

• Styling of the web interface (elvish -web) has been reworked, now featuring a dark theme as well as a light theme.

• Namespaces can now be accessed by as variables with a trailing : in the name (e.g. the edit: namespace variable can be accessed as $edit:). These variables can be indexed like maps (#492, (#631)).

• Support for urxvt-style key sequences has been improved (#579).

• Numbers can now be used as normal variable names (e.g. $1).

• The interactive namespace can now be built dynamically by assigning to the $-exports- variable in rc.elv (#613).

• Closures can now be introspected (#560, #617).

• The variable for customizing matchers in completion mode has graduated from $edit:-matcher to $edit:completion:matcher.

• The joins command no longer ignores leading empty values (#616).

• The while special command no longer swallows exceptions (#615).

• The finally block of the try special command no longer swallows exceptions (#619).

• A set of builtin commands for manipulating environment variables - has-env, get-env, set-env, unset-env - has been added.

• The prompts are now rendered asynchronously. The appearance of stale prompts can be customized.

• Experimental support for customizing the eagerness of prompts.

• Elvish now writes a \r to the terminal before suspending the editor (#629; thanks to @krader1961 for the analysis!).

• New edit:history:fast-forward command to import command history after the current session started.

• The completion mode no longer completes the longest common prefix (#637).

• New store:del-dir command for deleting directory history.

• Add chdir hooks $before-chdir and $after-chdir.

• Location mode now supports the notion of workspaces (#643).

• The output of elvish -buildinfo -json is now actually valid JSON (#682).

• New styled and styled-segment commands (thanks to @fehnomenal!) (#520, #674).

• New builtin $notify-bg-job-success variable for suppressing notification of the success of background jobs (thanks to @iwoloschin!) (#689).

• New builtin $num-bg-jobs variable for tracking number of background jobs (#692).

• The edit:complete-getopt command now supports supplying a description for arguments of options (thanks to @zzamboni!) (#693).

• Complex candidates built with edit:complex-candidate are now indexable (thanks to @zzamboni!) (#691).

• New -norc flag for skipping rc.elv (thanks to @iwoloschin!) (#707).

• Elvish now guards against commands messing up terminal attributes (#706).