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+[//]: # "NOTE: THIS FILE WAS AUTOGENERATED FROM CHANGES.md"
+
+## Change Log
+
+### Unreleased
+
+#### _Black_
+
+- re-implemented support for explicit trailing commas: now it works consistently within
+  any bracket pair, including nested structures (#1288 and duplicates)
+
+- `Black` now reindents docstrings when reindenting code around it (#1053)
+
+- `Black` now shows colored diffs (#1266)
+
+- `Black` is now packaged using 'py3' tagged wheels (#1388)
+
+- `Black` now supports Python 3.8 code, e.g. star expressions in return statements
+  (#1121)
+
+- `Black` no longer normalizes capital R-string prefixes as those have a
+  community-accepted meaning (#1244)
+
+- `Black` now uses exit code 2 when specified configuration file doesn't exit (#1361)
+
+- `Black` now works on AWS Lambda (#1141)
+
+- added `--force-exclude` argument (#1032)
+
+- removed deprecated `--py36` option (#1236)
+
+- fixed `--diff` output when EOF is encountered (#526)
+
+- fixed `# fmt: off` handling around decorators (#560)
+
+- fixed unstable formatting with some `# type: ignore` comments (#1113)
+
+- fixed invalid removal on organizing brackets followed by indexing (#1575)
+
+- introduced `black-primer`, a CI tool that allows us to run regression tests against
+  existing open source users of Black (#1402)
+
+- introduced property-based fuzzing to our test suite based on Hypothesis and
+  Hypothersmith (#1566)
+
+- implemented experimental and disabled by default long string rewrapping (#1132),
+  hidden under a `--experimental-string-processing` flag while it's being worked on;
+  this is an undocumented and unsupported feature, you lose Internet points for
+  depending on it (#1609)
+
+#### Vim plugin
+
+- prefer virtualenv packages over global packages (#1383)
+
+### 19.10b0
+
+- added support for PEP 572 assignment expressions (#711)
+
+- added support for PEP 570 positional-only arguments (#943)
+
+- added support for async generators (#593)
+
+- added support for pre-splitting collections by putting an explicit trailing comma
+  inside (#826)
+
+- added `black -c` as a way to format code passed from the command line (#761)
+
+- --safe now works with Python 2 code (#840)
+
+- fixed grammar selection for Python 2-specific code (#765)
+
+- fixed feature detection for trailing commas in function definitions and call sites
+  (#763)
+
+- `# fmt: off`/`# fmt: on` comment pairs placed multiple times within the same block of
+  code now behave correctly (#1005)
+
+- _Black_ no longer crashes on Windows machines with more than 61 cores (#838)
+
+- _Black_ no longer crashes on standalone comments prepended with a backslash (#767)
+
+- _Black_ no longer crashes on `from` ... `import` blocks with comments (#829)
+
+- _Black_ no longer crashes on Python 3.7 on some platform configurations (#494)
+
+- _Black_ no longer fails on comments in from-imports (#671)
+
+- _Black_ no longer fails when the file starts with a backslash (#922)
+
+- _Black_ no longer merges regular comments with type comments (#1027)
+
+- _Black_ no longer splits long lines that contain type comments (#997)
+
+- removed unnecessary parentheses around `yield` expressions (#834)
+
+- added parentheses around long tuples in unpacking assignments (#832)
+
+- added parentheses around complex powers when they are prefixed by a unary operator
+  (#646)
+
+- fixed bug that led _Black_ format some code with a line length target of 1 (#762)
+
+- _Black_ no longer introduces quotes in f-string subexpressions on string boundaries
+  (#863)
+
+- if _Black_ puts parenthesis around a single expression, it moves comments to the
+  wrapped expression instead of after the brackets (#872)
+
+- `blackd` now returns the version of _Black_ in the response headers (#1013)
+
+- `blackd` can now output the diff of formats on source code when the `X-Diff` header is
+  provided (#969)
+
+### 19.3b0
+
+- new option `--target-version` to control which Python versions _Black_-formatted code
+  should target (#618)
+
+- deprecated `--py36` (use `--target-version=py36` instead) (#724)
+
+- _Black_ no longer normalizes numeric literals to include `_` separators (#696)
+
+- long `del` statements are now split into multiple lines (#698)
+
+- type comments are no longer mangled in function signatures
+
+- improved performance of formatting deeply nested data structures (#509)
+
+- _Black_ now properly formats multiple files in parallel on Windows (#632)
+
+- _Black_ now creates cache files atomically which allows it to be used in parallel
+  pipelines (like `xargs -P8`) (#673)
+
+- _Black_ now correctly indents comments in files that were previously formatted with
+  tabs (#262)
+
+- `blackd` now supports CORS (#622)
+
+### 18.9b0
+
+- numeric literals are now formatted by _Black_ (#452, #461, #464, #469):
+
+  - numeric literals are normalized to include `_` separators on Python 3.6+ code
+
+  - added `--skip-numeric-underscore-normalization` to disable the above behavior and
+    leave numeric underscores as they were in the input
+
+  - code with `_` in numeric literals is recognized as Python 3.6+
+
+  - most letters in numeric literals are lowercased (e.g., in `1e10`, `0x01`)
+
+  - hexadecimal digits are always uppercased (e.g. `0xBADC0DE`)
+
+- added `blackd`, see [its documentation](#blackd) for more info (#349)
+
+- adjacent string literals are now correctly split into multiple lines (#463)
+
+- trailing comma is now added to single imports that don't fit on a line (#250)
+
+- cache is now populated when `--check` is successful for a file which speeds up
+  consecutive checks of properly formatted unmodified files (#448)
+
+- whitespace at the beginning of the file is now removed (#399)
+
+- fixed mangling [pweave](http://mpastell.com/pweave/) and
+  [Spyder IDE](https://www.spyder-ide.org/) special comments (#532)
+
+- fixed unstable formatting when unpacking big tuples (#267)
+
+- fixed parsing of `__future__` imports with renames (#389)
+
+- fixed scope of `# fmt: off` when directly preceding `yield` and other nodes (#385)
+
+- fixed formatting of lambda expressions with default arguments (#468)
+
+- fixed `async for` statements: _Black_ no longer breaks them into separate lines (#372)
+
+- note: the Vim plugin stopped registering `,=` as a default chord as it turned out to
+  be a bad idea (#415)
+
+### 18.6b4
+
+- hotfix: don't freeze when multiple comments directly precede `# fmt: off` (#371)
+
+### 18.6b3
+
+- typing stub files (`.pyi`) now have blank lines added after constants (#340)
+
+- `# fmt: off` and `# fmt: on` are now much more dependable:
+
+  - they now work also within bracket pairs (#329)
+
+  - they now correctly work across function/class boundaries (#335)
+
+  - they now work when an indentation block starts with empty lines or misaligned
+    comments (#334)
+
+- made Click not fail on invalid environments; note that Click is right but the
+  likelihood we'll need to access non-ASCII file paths when dealing with Python source
+  code is low (#277)
+
+- fixed improper formatting of f-strings with quotes inside interpolated expressions
+  (#322)
+
+- fixed unnecessary slowdown when long list literals where found in a file
+
+- fixed unnecessary slowdown on AST nodes with very many siblings
+
+- fixed cannibalizing backslashes during string normalization
+
+- fixed a crash due to symbolic links pointing outside of the project directory (#338)
+
+### 18.6b2
+
+- added `--config` (#65)
+
+- added `-h` equivalent to `--help` (#316)
+
+- fixed improper unmodified file caching when `-S` was used
+
+- fixed extra space in string unpacking (#305)
+
+- fixed formatting of empty triple quoted strings (#313)
+
+- fixed unnecessary slowdown in comment placement calculation on lines without comments
+
+### 18.6b1
+
+- hotfix: don't output human-facing information on stdout (#299)
+
+- hotfix: don't output cake emoji on non-zero return code (#300)
+
+### 18.6b0
+
+- added `--include` and `--exclude` (#270)
+
+- added `--skip-string-normalization` (#118)
+
+- added `--verbose` (#283)
+
+- the header output in `--diff` now actually conforms to the unified diff spec
+
+- fixed long trivial assignments being wrapped in unnecessary parentheses (#273)
+
+- fixed unnecessary parentheses when a line contained multiline strings (#232)
+
+- fixed stdin handling not working correctly if an old version of Click was used (#276)
+
+- _Black_ now preserves line endings when formatting a file in place (#258)
+
+### 18.5b1
+
+- added `--pyi` (#249)
+
+- added `--py36` (#249)
+
+- Python grammar pickle caches are stored with the formatting caches, making _Black_
+  work in environments where site-packages is not user-writable (#192)
+
+- _Black_ now enforces a PEP 257 empty line after a class-level docstring (and/or
+  fields) and the first method
+
+- fixed invalid code produced when standalone comments were present in a trailer that
+  was omitted from line splitting on a large expression (#237)
+
+- fixed optional parentheses being removed within `# fmt: off` sections (#224)
+
+- fixed invalid code produced when stars in very long imports were incorrectly wrapped
+  in optional parentheses (#234)
+
+- fixed unstable formatting when inline comments were moved around in a trailer that was
+  omitted from line splitting on a large expression (#238)
+
+- fixed extra empty line between a class declaration and the first method if no class
+  docstring or fields are present (#219)
+
+- fixed extra empty line between a function signature and an inner function or inner
+  class (#196)
+
+### 18.5b0
+
+- call chains are now formatted according to the
+  [fluent interfaces](https://en.wikipedia.org/wiki/Fluent_interface) style (#67)
+
+- data structure literals (tuples, lists, dictionaries, and sets) are now also always
+  exploded like imports when they don't fit in a single line (#152)
+
+- slices are now formatted according to PEP 8 (#178)
+
+- parentheses are now also managed automatically on the right-hand side of assignments
+  and return statements (#140)
+
+- math operators now use their respective priorities for delimiting multiline
+  expressions (#148)
+
+- optional parentheses are now omitted on expressions that start or end with a bracket
+  and only contain a single operator (#177)
+
+- empty parentheses in a class definition are now removed (#145, #180)
+
+- string prefixes are now standardized to lowercase and `u` is removed on Python 3.6+
+  only code and Python 2.7+ code with the `unicode_literals` future import (#188, #198,
+  #199)
+
+- typing stub files (`.pyi`) are now formatted in a style that is consistent with PEP
+  484 (#207, #210)
+
+- progress when reformatting many files is now reported incrementally
+
+- fixed trailers (content with brackets) being unnecessarily exploded into their own
+  lines after a dedented closing bracket (#119)
+
+- fixed an invalid trailing comma sometimes left in imports (#185)
+
+- fixed non-deterministic formatting when multiple pairs of removable parentheses were
+  used (#183)
+
+- fixed multiline strings being unnecessarily wrapped in optional parentheses in long
+  assignments (#215)
+
+- fixed not splitting long from-imports with only a single name
+
+- fixed Python 3.6+ file discovery by also looking at function calls with unpacking.
+  This fixed non-deterministic formatting if trailing commas where used both in function
+  signatures with stars and function calls with stars but the former would be
+  reformatted to a single line.
+
+- fixed crash on dealing with optional parentheses (#193)
+
+- fixed "is", "is not", "in", and "not in" not considered operators for splitting
+  purposes
+
+- fixed crash when dead symlinks where encountered
+
+### 18.4a4
+
+- don't populate the cache on `--check` (#175)
+
+### 18.4a3
+
+- added a "cache"; files already reformatted that haven't changed on disk won't be
+  reformatted again (#109)
+
+- `--check` and `--diff` are no longer mutually exclusive (#149)
+
+- generalized star expression handling, including double stars; this fixes
+  multiplication making expressions "unsafe" for trailing commas (#132)
+
+- _Black_ no longer enforces putting empty lines behind control flow statements (#90)
+
+- _Black_ now splits imports like "Mode 3 + trailing comma" of isort (#127)
+
+- fixed comment indentation when a standalone comment closes a block (#16, #32)
+
+- fixed standalone comments receiving extra empty lines if immediately preceding a
+  class, def, or decorator (#56, #154)
+
+- fixed `--diff` not showing entire path (#130)
+
+- fixed parsing of complex expressions after star and double stars in function calls
+  (#2)
+
+- fixed invalid splitting on comma in lambda arguments (#133)
+
+- fixed missing splits of ternary expressions (#141)
+
+### 18.4a2
+
+- fixed parsing of unaligned standalone comments (#99, #112)
+
+- fixed placement of dictionary unpacking inside dictionary literals (#111)
+
+- Vim plugin now works on Windows, too
+
+- fixed unstable formatting when encountering unnecessarily escaped quotes in a string
+  (#120)
+
+### 18.4a1
+
+- added `--quiet` (#78)
+
+- added automatic parentheses management (#4)
+
+- added [pre-commit](https://pre-commit.com) integration (#103, #104)
+
+- fixed reporting on `--check` with multiple files (#101, #102)
+
+- fixed removing backslash escapes from raw strings (#100, #105)
+
+### 18.4a0
+
+- added `--diff` (#87)
+
+- add line breaks before all delimiters, except in cases like commas, to better comply
+  with PEP 8 (#73)
+
+- standardize string literals to use double quotes (almost) everywhere (#75)
+
+- fixed handling of standalone comments within nested bracketed expressions; _Black_
+  will no longer produce super long lines or put all standalone comments at the end of
+  the expression (#22)
+
+- fixed 18.3a4 regression: don't crash and burn on empty lines with trailing whitespace
+  (#80)
+
+- fixed 18.3a4 regression: `# yapf: disable` usage as trailing comment would cause
+  _Black_ to not emit the rest of the file (#95)
+
+- when CTRL+C is pressed while formatting many files, _Black_ no longer freaks out with
+  a flurry of asyncio-related exceptions
+
+- only allow up to two empty lines on module level and only single empty lines within
+  functions (#74)
+
+### 18.3a4
+
+- `# fmt: off` and `# fmt: on` are implemented (#5)
+
+- automatic detection of deprecated Python 2 forms of print statements and exec
+  statements in the formatted file (#49)
+
+- use proper spaces for complex expressions in default values of typed function
+  arguments (#60)
+
+- only return exit code 1 when --check is used (#50)
+
+- don't remove single trailing commas from square bracket indexing (#59)
+
+- don't omit whitespace if the previous factor leaf wasn't a math operator (#55)
+
+- omit extra space in kwarg unpacking if it's the first argument (#46)
+
+- omit extra space in
+  [Sphinx auto-attribute comments](http://www.sphinx-doc.org/en/stable/ext/autodoc.html#directive-autoattribute)
+  (#68)
+
+### 18.3a3
+
+- don't remove single empty lines outside of bracketed expressions (#19)
+
+- added ability to pipe formatting from stdin to stdin (#25)
+
+- restored ability to format code with legacy usage of `async` as a name (#20, #42)
+
+- even better handling of numpy-style array indexing (#33, again)
+
+### 18.3a2
+
+- changed positioning of binary operators to occur at beginning of lines instead of at
+  the end, following
+  [a recent change to PEP 8](https://github.com/python/peps/commit/c59c4376ad233a62ca4b3a6060c81368bd21e85b)
+  (#21)
+
+- ignore empty bracket pairs while splitting. This avoids very weirdly looking
+  formattings (#34, #35)
+
+- remove a trailing comma if there is a single argument to a call
+
+- if top level functions were separated by a comment, don't put four empty lines after
+  the upper function
+
+- fixed unstable formatting of newlines with imports
+
+- fixed unintentional folding of post scriptum standalone comments into last statement
+  if it was a simple statement (#18, #28)
+
+- fixed missing space in numpy-style array indexing (#33)
+
+- fixed spurious space after star-based unary expressions (#31)
+
+### 18.3a1
+
+- added `--check`
+
+- only put trailing commas in function signatures and calls if it's safe to do so. If
+  the file is Python 3.6+ it's always safe, otherwise only safe if there are no `*args`
+  or `**kwargs` used in the signature or call. (#8)
+
+- fixed invalid spacing of dots in relative imports (#6, #13)
+
+- fixed invalid splitting after comma on unpacked variables in for-loops (#23)
+
+- fixed spurious space in parenthesized set expressions (#7)
+
+- fixed spurious space after opening parentheses and in default arguments (#14, #17)
+
+- fixed spurious space after unary operators when the operand was a complex expression
+  (#15)
+
+### 18.3a0
+
+- first published version, Happy 🍰 Day 2018!
+
+- alpha quality
+
+- date-versioned (see: https://calver.org/)