Breaking changes

• Fixing #4239 means the
  ordering of some messages have changed.

• Invalid ui.graph.style configuration is now an error.

• The builtin template branch_list has been renamed to bookmark_list as part
  of the jj branch deprecation.

Deprecations

• jj branch has been deprecated in favor of jj bookmark.

  Rationale: Jujutsu's branches don't behave like Git branches, which a
  confused many newcomers, as they expected a similar behavior given the name.
  We've renamed them to "bookmarks" to match the actual behavior, as we think
  that describes them better, and they also behave similar to Mercurial's
  bookmarks.

• jj obslog is now called jj evolution-log/jj evolog. jj obslog remains
  as an alias.

• jj unsquash has been deprecated in favor of jj squash and
  jj diffedit --restore-descendants.

  Rationale: jj squash can be used in interactive mode to pull
  changes from one commit to another, including from a parent commit
  to a child commit. For fine-grained dependent diffs, such as when
  the parent and the child commits must successively modify the same
  location in a file, jj diffedit --restore-descendants can be used
  to set the parent commit to the desired content without altering the
  content of the child commit.

• The git.push-branch-prefix config has been deprecated in favor of
  git.push-bookmark-prefix.

• conflict() and file() revsets have been renamed to conflicts() and files()
  respectively. The old names are still around and will be removed in a future
  release.

New features

• The new config option snapshot.auto-track lets you automatically track only
  the specified paths (all paths by default). Use the new jj file track
  command to manually tracks path that were not automatically tracked. There is
  no way to list untracked files yet. Use git status in a colocated workspace
  as a workaround.
  #323

• jj fix now allows fixing unchanged files with the --include-unchanged-files flag. This
  can be used to more easily introduce automatic formatting changes in a new
  commit separate from other changes.

• jj workspace add now accepts a --sparse-patterns=<MODE> option, which
  allows control of the sparse patterns for a newly created workspace: copy
  (inherit from parent; default), full (full working copy), or empty (the
  empty working copy).

• New command jj workspace rename that can rename the current workspace.

• jj op log gained an option to include operation diffs.

• jj git clone now accepts a --remote <REMOTE NAME> option, which
  allows to set a name for the remote instead of using the default
  origin.

• jj op undo now reports information on the operation that has been undone.

• jj squash: the -k flag can be used as a shorthand for --keep-emptied.

• CommitId / ChangeId template types now support .normal_hex().

• jj commit and jj describe now accept --author option allowing to quickly change
  author of given commit.

• jj diffedit, jj abandon, and jj restore now accept a --restore-descendants
  flag. When used, descendants of the edited or deleted commits will keep their original
  content.

• jj git fetch -b <remote-git-branch-name> will now warn if the branch(es)
  can not be found in any of the specified/configured remotes.

• jj split now lets the user select all changes in interactive mode. This may be used
  to keeping all changes into the first commit while keeping the current commit
  description for the second commit (the newly created empty one).

• Author and committer names are now yellow by default.

Fixed bugs

• Update working copy before reporting changes. This prevents errors during reporting
  from leaving the working copy in a stale state.

• Fixed panic when parsing invalid conflict markers of a particular form.
  (#2611)

• Editing a hidden commit now makes it visible.

• The present() revset now suppresses missing working copy error. For example,
  present(@) evaluates to none() if the current workspace has no
  working-copy commit.

Contributors

Thanks to the people who made this release happen!

• Austin Seipp (@thoughtpolice)
• Danny Hooper (@hooper)
• Emily Shaffer (@nasamuffin)
• Essien Ita Essien (@essiene)
• Ethan Brierley (@eopb)
• Ilya Grigoriev (@ilyagr)
• Kevin Liao (@kevincliao)
• Lukas Wirth (@Veykril)
• Martin von Zweigbergk (@martinvonz)
• Mateusz Mikuła (@mati865)
• mlcui (@mlcui-corp)
• Philip Metzger (@PhilipMetzger)
• Samuel Tardieu (@samueltardieu)
• Stephen Jennings (@jennings)
• Tyler Goffinet (@qubitz)
• Vamsi Avula (@avamsi)
• Yuya Nishihara (@yuja)