Black

_Black_

- Bumped regex version minimum to 2021.4.4 to fix Pattern class usage (2621)

_Black_

- Warn about Python 2 deprecation in more cases by improving Python 2 only syntax
detection (2592)
- Add experimental PyPy support (2559)
- Add partial support for the match statement. As it's experimental, it's only enabled
when `--target-version py310` is explicitly specified (2586)
- Add support for parenthesized with (2586)
- Declare support for Python 3.10 for running Black (2562)

Integrations

- Fixed vim plugin with Python 3.10 by removing deprecated distutils import (2610)
- The vim plugin now parses `skip_magic_trailing_comma` from pyproject.toml (2613)

_Black_

- Document stability policy, that will apply for non-beta releases (2529)
- Add new `--workers` parameter (2514)
- Fixed feature detection for positional-only arguments in lambdas (2532)
- Bumped typed-ast version minimum to 1.4.3 for 3.10 compatibility (2519)
- Fixed a Python 3.10 compatibility issue where the loop argument was still being passed
even though it has been removed (2580)
- Deprecate Python 2 formatting support (2523)

_Blackd_

- Remove dependency on aiohttp-cors (2500)
- Bump required aiohttp version to 3.7.4 (2509)

_Black-Primer_

- Add primer support for --projects (2555)
- Print primer summary after individual failures (2570)

Integrations

- Allow to pass `target_version` in the vim plugin (1319)
- Install build tools in docker file and use multi-stage build to keep the image size
down (2582)

Packaging

- Fix missing modules in self-contained binaries (2466)
- Fix missing toml extra used during installation (2475)

_Black_

- Add support for formatting Jupyter Notebook files (2357)
- Move from `appdirs` dependency to `platformdirs` (2375)
- Present a more user-friendly error if .gitignore is invalid (2414)
- The failsafe for accidentally added backslashes in f-string expressions has been
hardened to handle more edge cases during quote normalization (2437)
- Avoid changing a function return type annotation's type to a tuple by adding a
trailing comma (2384)
- Parsing support has been added for unparenthesized walruses in set literals, set
comprehensions, and indices (2447).
- Pin `setuptools-scm` build-time dependency version (2457)
- Exclude typing-extensions version 3.10.0.1 due to it being broken on Python 3.10
(2460)

_Blackd_

- Replace sys.exit(-1) with raise ImportError as it plays more nicely with tools that
scan installed packages (2440)

Integrations

- The provided pre-commit hooks no longer specify `language_version` to avoid overriding
`default_language_version` (2430)

_Black_

- Configuration files using TOML features higher than spec v0.5.0 are now supported
(2301)
- Add primer support and test for code piped into black via STDIN (2315)
- Fix internal error when `FORCE_OPTIONAL_PARENTHESES` feature is enabled (2332)
- Accept empty stdin (2346)
- Provide a more useful error when parsing fails during AST safety checks (2304)

Docker

- Add new `latest_release` tag automation to follow latest black release on docker
images (2374)

Integrations

- The vim plugin now searches upwards from the directory containing the current buffer
instead of the current working directory for pyproject.toml. (1871)
- The vim plugin now reads the correct string normalization option in pyproject.toml
(1869)
- The vim plugin no longer crashes Black when there's boolean values in pyproject.toml
(1869)