## Unreleased
+### Highlights
+
+<!-- Include any especially major or disruptive changes here -->
+
+### Stable style
+
+<!-- Changes that affect Black's stable style -->
+
+- Fix a crash when a colon line is marked between `# fmt: off` and `# fmt: on` (#3439)
+
+### Preview style
+
+<!-- Changes that affect Black's preview style -->
+
+- Format hex code in unicode escape sequences in string literals (#2916)
+- Add parentheses around `if`-`else` expressions (#2278)
+- Improve the performance on large expressions that contain many strings (#3467)
+- Fix a crash in preview style with assert + parenthesized string (#3415)
+- Fix crashes in preview style with walrus operators used in function return annotations
+ and except clauses (#3423)
+- Fix a crash in preview advanced string processing where mixed implicitly concatenated
+ regular and f-strings start with an empty span (#3463)
+- Fix a crash in preview advanced string processing where a standalone comment is placed
+ before a dict's value (#3469)
+- Fix an issue where extra empty lines are added when a decorator has `# fmt: skip`
+ applied or there is a standalone comment between decorators (#3470)
+- Do not put the closing quotes in a docstring on a separate line, even if the line is
+ too long (#3430)
+- Long values in dict literals are now wrapped in parentheses; correspondingly
+ unnecessary parentheses around short values in dict literals are now removed; long
+ string lambda values are now wrapped in parentheses (#3440)
+- Fix two crashes in preview style involving edge cases with docstrings (#3451)
+- Exclude string type annotations from improved string processing; fix crash when the
+ return type annotation is stringified and spans across multiple lines (#3462)
+- Wrap multiple context managers in parentheses when targeting Python 3.9+ (#3489)
+- Fix several crashes in preview style with walrus operators used in `with` statements
+ or tuples (#3473)
+- Fix an invalid quote escaping bug in f-string expressions where it produced invalid
+ code. Implicitly concatenated f-strings with different quotes can now be merged or
+ quote-normalized by changing the quotes used in expressions. (#3509)
+
+### Configuration
+
+<!-- Changes to how Black can be configured -->
+
+### Packaging
+
+<!-- Changes to how Black is packaged, such as dependency requirements -->
+
+- Upgrade mypyc from `0.971` to `0.991` so mypycified _Black_ can be built on armv7
+ (#3380)
+- Drop specific support for the `tomli` requirement on 3.11 alpha releases, working
+ around a bug that would cause the requirement not to be installed on any non-final
+ Python releases (#3448)
+
+### Parser
+
+<!-- Changes to the parser or to version autodetection -->
+
+### Performance
+
+<!-- Changes that improve Black's performance. -->
+
+### Output
+
+<!-- Changes to Black's terminal output and error messages -->
+
+- Calling `black --help` multiple times will return the same help contents each time
+ (#3516)
+- Verbose logging now shows the values of `pyproject.toml` configuration variables
+ (#3392)
+- Fix false symlink detection messages in verbose output due to using an incorrect
+ relative path to the project root (#3385)
+
+### _Blackd_
+
+<!-- Changes to blackd -->
+
+### Integrations
+
+<!-- For example, Docker, GitHub Actions, pre-commit, editors -->
+
+- Move 3.11 CI to normal flow now all dependencies support 3.11 (#3446)
+- Docker: Add new `latest_prerelease` tag automation to follow latest black alpha
+ release on docker images (#3465)
+
+### Documentation
+
+<!-- Major changes to documentation and policies. Small docs changes
+ don't need a changelog entry. -->
+
+- Expand `vim-plug` installation instructions to offer more explicit options (#3468)
+
+## 22.12.0
+
+### Preview style
+
+<!-- Changes that affect Black's preview style -->
+
+- Enforce empty lines before classes and functions with sticky leading comments (#3302)
+- Reformat empty and whitespace-only files as either an empty file (if no newline is
+ present) or as a single newline character (if a newline is present) (#3348)
+- Implicitly concatenated strings used as function args are now wrapped inside
+ parentheses (#3307)
+- For assignment statements, prefer splitting the right hand side if the left hand side
+ fits on a single line (#3368)
+- Correctly handle trailing commas that are inside a line's leading non-nested parens
+ (#3370)
+
+### Configuration
+
+<!-- Changes to how Black can be configured -->
+
+- Fix incorrectly applied `.gitignore` rules by considering the `.gitignore` location
+ and the relative path to the target file (#3338)
+- Fix incorrectly ignoring `.gitignore` presence when more than one source directory is
+ specified (#3336)
+
+### Parser
+
+<!-- Changes to the parser or to version autodetection -->
+
+- Parsing support has been added for walruses inside generator expression that are
+ passed as function args (for example,
+ `any(match := my_re.match(text) for text in texts)`) (#3327).
+
+### Integrations
+
+<!-- For example, Docker, GitHub Actions, pre-commit, editors -->
+
+- Vim plugin: Optionally allow using the system installation of Black via
+ `let g:black_use_virtualenv = 0`(#3309)
+
+## 22.10.0
+
+### Highlights
+
+- Runtime support for Python 3.6 has been removed. Formatting 3.6 code will still be
+ supported until further notice.
+
+### Stable style
+
+- Fix a crash when `# fmt: on` is used on a different block level than `# fmt: off`
+ (#3281)
+
+### Preview style
+
+- Fix a crash when formatting some dicts with parenthesis-wrapped long string keys
+ (#3262)
+
+### Configuration
+
+- `.ipynb_checkpoints` directories are now excluded by default (#3293)
+- Add `--skip-source-first-line` / `-x` option to ignore the first line of source code
+ while formatting (#3299)
+
+### Packaging
+
+- Executables made with PyInstaller will no longer crash when formatting several files
+ at once on macOS. Native x86-64 executables for macOS are available once again.
+ (#3275)
+- Hatchling is now used as the build backend. This will not have any effect for users
+ who install Black with its wheels from PyPI. (#3233)
+- Faster compiled wheels are now available for CPython 3.11 (#3276)
+
+### _Blackd_
+
+- Windows style (CRLF) newlines will be preserved (#3257).
+
+### Integrations
+
+- Vim plugin: add flag (`g:black_preview`) to enable/disable the preview style (#3246)
+- Update GitHub Action to support formatting of Jupyter Notebook files via a `jupyter`
+ option (#3282)
+- Update GitHub Action to support use of version specifiers (e.g. `<23`) for Black
+ version (#3265)
+
+## 22.8.0
+
+### Highlights
+
+- Python 3.11 is now supported, except for _blackd_ as aiohttp does not support 3.11 as
+ of publishing (#3234)
+- This is the last release that supports running _Black_ on Python 3.6 (formatting 3.6
+ code will continue to be supported until further notice)
+- Reword the stability policy to say that we may, in rare cases, make changes that
+ affect code that was not previously formatted by _Black_ (#3155)
+
+### Stable style
+
+- Fix an infinite loop when using `# fmt: on/off` in the middle of an expression or code
+ block (#3158)
+- Fix incorrect handling of `# fmt: skip` on colon (`:`) lines (#3148)
+- Comments are no longer deleted when a line had spaces removed around power operators
+ (#2874)
+
+### Preview style
+
+- Single-character closing docstring quotes are no longer moved to their own line as
+ this is invalid. This was a bug introduced in version 22.6.0. (#3166)
+- `--skip-string-normalization` / `-S` now prevents docstring prefixes from being
+ normalized as expected (#3168)
+- When using `--skip-magic-trailing-comma` or `-C`, trailing commas are stripped from
+ subscript expressions with more than 1 element (#3209)
+- Implicitly concatenated strings inside a list, set, or tuple are now wrapped inside
+ parentheses (#3162)
+- Fix a string merging/split issue when a comment is present in the middle of implicitly
+ concatenated strings on its own line (#3227)
+
+### _Blackd_
+
+- `blackd` now supports enabling the preview style via the `X-Preview` header (#3217)
+
+### Configuration
+
+- Black now uses the presence of debug f-strings to detect target version (#3215)
+- Fix misdetection of project root and verbose logging of sources in cases involving
+ `--stdin-filename` (#3216)
+- Immediate `.gitignore` files in source directories given on the command line are now
+ also respected, previously only `.gitignore` files in the project root and
+ automatically discovered directories were respected (#3237)
+
+### Documentation
+
+- Recommend using BlackConnect in IntelliJ IDEs (#3150)
+
+### Integrations
+
+- Vim plugin: prefix messages with `Black: ` so it's clear they come from Black (#3194)
+- Docker: changed to a /opt/venv installation + added to PATH to be available to
+ non-root users (#3202)
+
+### Output
+
+- Change from deprecated `asyncio.get_event_loop()` to create our event loop which
+ removes DeprecationWarning (#3164)
+- Remove logging from internal `blib2to3` library since it regularly emits error logs
+ about failed caching that can and should be ignored (#3193)
+
+### Parser
+
+- Type comments are now included in the AST equivalence check consistently so accidental
+ deletion raises an error. Though type comments can't be tracked when running on PyPy
+ 3.7 due to standard library limitations. (#2874)
+
+### Performance
+
+- Reduce Black's startup time when formatting a single file by 15-30% (#3211)
+
+## 22.6.0
+
+### Style
+
+- Fix unstable formatting involving `#fmt: skip` and `# fmt:skip` comments (notice the
+ lack of spaces) (#2970)
+
+### Preview style
+
+- Docstring quotes are no longer moved if it would violate the line length limit (#3044)
+- Parentheses around return annotations are now managed (#2990)
+- Remove unnecessary parentheses around awaited objects (#2991)
+- Remove unnecessary parentheses in `with` statements (#2926)
+- Remove trailing newlines after code block open (#3035)
+
+### Integrations
+
+- Add `scripts/migrate-black.py` script to ease introduction of Black to a Git project
+ (#3038)
+
+### Output
+
+- Output Python version and implementation as part of `--version` flag (#2997)
+
+### Packaging
+
+- Use `tomli` instead of `tomllib` on Python 3.11 builds where `tomllib` is not
+ available (#2987)
+
+### Parser
+
+- [PEP 654](https://peps.python.org/pep-0654/#except) syntax (for example,
+ `except *ExceptionGroup:`) is now supported (#3016)
+- [PEP 646](https://peps.python.org/pep-0646) syntax (for example,
+ `Array[Batch, *Shape]` or `def fn(*args: *T) -> None`) is now supported (#3071)
+
+### Vim Plugin
+
+- Fix `strtobool` function. It didn't parse true/on/false/off. (#3025)
+
+## 22.3.0
+
+### Preview style
+
+- Code cell separators `#%%` are now standardised to `# %%` (#2919)
+- Remove unnecessary parentheses from `except` statements (#2939)
+- Remove unnecessary parentheses from tuple unpacking in `for` loops (#2945)
+- Avoid magic-trailing-comma in single-element subscripts (#2942)
+
+### Configuration
+
+- Do not format `__pypackages__` directories by default (#2836)
+- Add support for specifying stable version with `--required-version` (#2832).
+- Avoid crashing when the user has no homedir (#2814)
+- Avoid crashing when md5 is not available (#2905)
+- Fix handling of directory junctions on Windows (#2904)
+
+### Documentation
+
+- Update pylint config documentation (#2931)
+
+### Integrations
+
+- Move test to disable plugin in Vim/Neovim, which speeds up loading (#2896)
+
+### Output
+
+- In verbose mode, log when _Black_ is using user-level config (#2861)
+
+### Packaging
+
+- Fix Black to work with Click 8.1.0 (#2966)
+- On Python 3.11 and newer, use the standard library's `tomllib` instead of `tomli`
+ (#2903)
+- `black-primer`, the deprecated internal devtool, has been removed and copied to a
+ [separate repository](https://github.com/cooperlees/black-primer) (#2924)
+
+### Parser
+
+- Black can now parse starred expressions in the target of `for` and `async for`
+ statements, e.g `for item in *items_1, *items_2: pass` (#2879).
+
+## 22.1.0
+
At long last, _Black_ is no longer a beta product! This is the first non-beta release
-and the first release covered by our new stability policy.
+and the first release covered by our new
+[stability policy](https://black.readthedocs.io/en/stable/the_black_code_style/index.html#stability-policy).
### Highlights
literals (#2799)
- Treat blank lines in stubs the same inside top-level `if` statements (#2820)
- Fix unstable formatting with semicolons and arithmetic expressions (#2817)
+- Fix unstable formatting around magic trailing comma (#2572)
### Parser
`values: Tuple[int, ...] = 1, 2, 3`) now implies 3.8+ (#2708)
- Fix handling of standalone `match()` or `case()` when there is a trailing newline or a
comment inside of the parentheses. (#2760)
+- `from __future__ import annotations` statement now implies Python 3.7+ (#2690)
### Performance
- Fix determination of f-string expression spans (#2654)
- Fix bad formatting of error messages about EOF in multi-line statements (#2343)
- Functions and classes in blocks now have more consistent surrounding spacing (#2472)
-- `from __future__ import annotations` statement now implies Python 3.7+ (#2690)
#### Jupyter Notebook support
when `--target-version py310` is explicitly specified (#2586)
- Add support for parenthesized with (#2586)
- Declare support for Python 3.10 for running Black (#2562)
-- Fix unstable black runs around magic trailing comma (#2572)
### Integrations
projects / etc / vim.git / blobdiff