Breaking changes

• Dropped support for config in ~/.jjconfig. Your configuration is now read from <config dir>/jj/config.toml, where <config dir> is ${XDG_CONFIG_HOME} or ~/.config/ on Linux, ~/Library/Application Support/ on macOS, and ~\AppData\Roaming\ on Windows.

New features

• You can now set an environment variable called $JJ_CONFIG to a path to a config file. That will then be read instead of your regular config file. This is mostly intended for testing and scripts.

• The standard $NO_COLOR environment variable is now respected.

• jj new now lets you specify a description with --message/-m.

• When you check out a commit, the old commit no longer automatically gets abandoned if it's empty and has descendants, it only gets abandoned if it's empty and does not have descendants.

• (#111) When undoing an earlier operation, any new commits on top of commits from the undone operation will be rebased away. For example, let's say you rebase commit A so it becomes a new commit A', and then you create commit B on top of A'. If you now undo the rebase operation, commit B will be rebased to be on top of A instead. The same logic is used if the repo was modified by concurrent operations (so if one operation added B on top of A, and one operation rebased A as A', then B would be automatically rebased on top of A'). See #111 for more examples.

• jj log now accepts -p/--patch option.

Fixed bugs

• Fixed crash on jj init --git-repo=. (it almost always crashed).

• When sharing the working copy with a Git repo, the automatic importing and exporting (sometimes?) didn't happen on Windows.