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Update dependency black to v26 [SECURITY] - #1353

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Update dependency black to v26 [SECURITY]#1353
renovate[bot] wants to merge 1 commit into
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users/renovate/pypi-black-vulnerability

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This PR contains the following updates:

Package Change Age Confidence
black (changelog) 25.12.0 → 26.10.1 age confidence

Black: Arbitrary file writes from unsanitized user input in cache file name

CVE-2026-32274 / GHSA-3936-cmfr-pm3m

More information

Details

Impact

Black writes a cache file, the name of which is computed from various formatting options. The value of the --python-cell-magics option was placed in the filename without sanitization, which allowed an attacker who controls the value of this argument to write cache files to arbitrary file system locations.

Patches

Fixed in Black 26.3.1.

Workarounds

Do not allow untrusted user input into the value of the --python-cell-magics option.

Severity

  • CVSS Score: 8.7 / 10 (High)
  • Vector String: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

References

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

Black: GitHub Action installs unvalidated required-version from pyproject.toml

CVE-2026-114134 / GHSA-cg8m-r9f2-5wm2

More information

Details

Summary

The GitHub Action bundled with Black can read the version from tool.black.required-version if use_pyproject is set to True. This version is not validated and therefore can be used to execute untrusted code in the context of a victim's repository.

Details

This is similar to the previous CVE-2026-31900. The value in tool.black.required-version is accepted as the version to be installed by the action without validation.

Proof of concept

Reproduction requires a victim to use Black's GitHub Action with use_pyproject: true. The attacker would then issue a PR to the victim's repository with pyproject.toml edited so that Black points to a malicious repository.

Impact

This is a remote code execution vulnerability impacting users using the GitHub Action bundled with psf/black and using the use_pyproject: true setting.

Severity

  • CVSS Score: 8.7 / 10 (High)
  • Vector String: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

CVE-2026-31900 / GHSA-v53h-f6m7-xcgm / PYSEC-2026-2120

More information

Details

Black is the uncompromising Python code formatter. Black provides a GitHub action for formatting code. This action supports an option, use_pyproject: true, for reading the version of Black to use from the repository pyproject.toml. A malicious pull request could edit pyproject.toml to use a direct URL reference to a malicious repository. This could lead to arbitrary code execution in the context of the GitHub Action. Attackers could then gain access to secrets or permissions available in the context of the action. Version 26.3.0 fixes this vulnerability.

Severity

  • CVSS Score: 9.8 / 10 (Critical)
  • Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

This data is provided by OSV and the PyPI Advisory Database (CC-BY 4.0).

Black: Arbitrary file writes from unsanitized user input in cache file name

CVE-2026-32274 / GHSA-3936-cmfr-pm3m / PYSEC-2026-2121

More information

Details

Impact

Black writes a cache file, the name of which is computed from various formatting options. The value of the --python-cell-magics option was placed in the filename without sanitization, which allowed an attacker who controls the value of this argument to write cache files to arbitrary file system locations.

Patches

Fixed in Black 26.3.1.

Workarounds

Do not allow untrusted user input into the value of the --python-cell-magics option.

Severity

  • CVSS Score: 8.7 / 10 (High)
  • Vector String: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

References

This data is provided by OSV and the GitHub Advisory Database (CC-BY 4.0).

CVE-2026-32274 / GHSA-3936-cmfr-pm3m / PYSEC-2026-2121

More information

Details

Black is the uncompromising Python code formatter. Prior to 26.3.1, Black writes a cache file, the name of which is computed from various formatting options. The value of the --python-cell-magics option was placed in the filename without sanitization, which allowed an attacker who controls the value of this argument to write cache files to arbitrary file system locations. Fixed in Black 26.3.1.

Severity

  • CVSS Score: 7.5 / 10 (High)
  • Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References

This data is provided by OSV and the PyPI Advisory Database (CC-BY 4.0).

Black: GitHub Action installs unvalidated required-version from pyproject.toml

CVE-2026-114134 / GHSA-cg8m-r9f2-5wm2

More information

Details

Summary

The GitHub Action bundled with Black can read the version from tool.black.required-version if use_pyproject is set to True. This version is not validated and therefore can be used to execute untrusted code in the context of a victim's repository.

Details

This is similar to the previous CVE-2026-31900. The value in tool.black.required-version is accepted as the version to be installed by the action without validation.

Proof of concept

Reproduction requires a victim to use Black's GitHub Action with use_pyproject: true. The attacker would then issue a PR to the victim's repository with pyproject.toml edited so that Black points to a malicious repository.

Impact

This is a remote code execution vulnerability impacting users using the GitHub Action bundled with psf/black and using the use_pyproject: true setting.

Severity

  • CVSS Score: 8.7 / 10 (High)
  • Vector String: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References

This data is provided by OSV and the GitHub Advisory Database (CC-BY 4.0).

Release Notes

psf/black (black)

v26.10.1

Compare Source

Highlights

This release fixes a security issue in Black's bundled GitHub Action. Repositories that
use the action are encouraged to update to the latest version of Black immediately. This
update is received automatically when using psf/black@stable, and is independent of
the version of Black installed by the action.

When the GitHub Action reads version specifiers from tool.black.required-version, it
now only accepts released versions of Black, as it already did for black requirements
in dependency lists. Other values, such as URL references, are now rejected. This issue
has been registered as GHSA-cg8m-r9f2-5wm2; a CVE identifier is pending.

Stable style
  • Fix a long Jupyter notebook assignment magic (for example x = !ls -la) being wrapped
    in parentheses, which IPython can no longer run; such cells are now left unchanged
    (#​5481)
  • Keep repeated lines outside the selected --line-ranges unchanged (#​5436)
  • Fix --line-ranges formatting lines that follow a statement when formatting joins or
    re-indents that statement (#​5484)
  • Fix --line-ranges crashing with an internal error when an unselected statement has a
    # fmt: skip comment on the last line before a closing bracket (#​5477)
  • Prevent moving an encoding declaration (for example # -*- coding: latin-1 -*-) onto
    the first two lines of a file (#​5487)
  • Fix adding an extra trailing blank line inside a multi-line module docstring when its
    last line is near the line length limit (#​5494)
  • Preserve blank lines between imports and unselected statements when using
    --line-ranges, and ensure a blank line is added between an unselected import and a
    newly formatted statement (#​5493, #​5649)
  • Keep the parentheses around a walrus that is the only item in a set (for example
    {(x := f())}) when targeting Python 3.9 or older, since Python 3.8 and 3.9.0 can't
    parse it without them (#​5502)
Preview style
  • Do not split short expressions on delimiters (such as binary operators, comparisons,
    or comprehensions) inside brackets when preceded by a standalone comment (#​5455)
  • Fix the unstable string_processing feature removing backslash-newline sequences from
    raw strings, which changed their value (#​5482)
  • Avoid adding unnecessary parentheses around unbreakable right-hand side expressions in
    assignments (such as annotated assignments or subscript targets) (#​5473)
  • Parenthesize expressions with parameter comments when they exceed the line length
    under --preview (#​5442)
  • Fix wrap_long_dict_values_in_parens dropping the parentheses around a right-hand
    side that contains a dictionary, leaving a line over the length limit (#​5492)
  • Fix the unstable string_processing feature adding a space after * or ** in a PEP
    695 type parameter (* Ts = ...) when it splits a string in the parameter's default
    (#​5504)
  • Avoid unnecessary line splits of trailers (such as indexing/subscripts) when an
    earlier bracket split exceeds the line length only due to a trailing comment (#​5498)
Configuration
  • Add --cache-dir to configure the cache directory from the command line (#​5433)
  • Don't cache a file as formatted after formatting or checking it with --line-ranges,
    which made a later full black --check pass and black skip the unformatted lines
    (#​5476)
  • Respect a .gitignore that starts with a UTF-8 byte order mark. The mark became part
    of the first pattern, so that pattern never matched and Black formatted files that git
    ignores (#​5497)
Performance
  • Avoid quadratic runtime when splitting very long lines with many trailing bracket
    pairs (such as consecutive subscripts) (#​5475)
Integrations
  • Fix the GitHub Action crashing on dependency-group includes when use_pyproject is
    enabled (#​5479)
  • When the GitHub Action reads version specifiers from tool.black.required-version, it
    now only accepts released versions of Black, as it already did for black
    requirements in dependency lists. Other values, such as URL references, are now
    rejected. (#​5510)

v26.10.0

Compare Source

Stable style
  • --line-ranges no longer inserts an empty line after a docstring when the range
    covers only the docstring itself (#​5312)
  • Fix # fmt: skip on a bracketed ternary turning the surrounding tuple into a call
    (#​5464)
  • Fix crash when # fmt: skip is placed on a one-line function or class with PEP 695
    type parameters (#​5429)
  • Fix an inline comment after the closing bracket of optional parentheses being moved
    inside the parentheses when the parenthesized expression contains own-line comments
    (#​5395)
  • Fix unparseable output when # fmt: skip is placed on a bracket of an if, while,
    for, or with header (#​5401, #​5405)
  • Fix crash when formatting parenthesized expressions with multiple inline comments and
    # fmt: skip (#​5414)
  • Fix parsing Jupyter notebook assignment magics when non-ASCII characters appear
    earlier on the line (#​5381)
  • Preserve blank lines that come immediately before a # fmt: on comment (#​5300)
  • Keep the parentheses around the target of an annotated assignment (e.g.
    (x): int = 5), which prevent CPython from including the name in __annotations__
    (#​5321)
  • Stop treating a t-string in docstring position as a docstring (e.g. t" spam " as
    the first statement of a module, class or function) (#​5287)
  • Fix unparseable output for a t-string whose replacement field contains a quote (e.g.
    t'\'{a["b"]}\'') (#​5265)
  • Fix unparseable output for a triple-quoted string whose body ends in an
    already-escaped double quote (e.g. '''\'''\"''') (#​5262)
  • Fix --skip-magic-trailing-comma dropping the trailing comma from a split
    single-element tuple used as a lambda parameter default (#​5246)
  • Fix unstable formatting when an inline comment sits on optional parentheses (e.g. a
    parenthesized assert message) (#​5241)
  • Fix --skip-magic-trailing-comma dropping the trailing comma of a one-element
    subscript (a[x,]) when the line is long enough to be split and contains a power
    operator (#​5272)
  • Fix crash when a standalone comment sits between tokens of a comprehension or lambda
    (#​5144)
  • Fix inline comments on a bracket inside a comprehension being dropped (#​5330)
  • Respect the magic trailing comma in a PEP 695 type parameter list containing a
    *TypeVarTuple or **ParamSpec (#​5244)
  • Fix crash when a comment-only # fmt: off/# fmt: on block is followed by a with
    statement after another standalone comment (#​5189)
  • Fix a crash when splitting case case if ... match patterns at very small line
    lengths (#​5147)
  • Fix multiline docstring indentation when leading tabs are used inside indented
    docstrings (#​5148)
  • Respect # fmt: skip on a line that opens a bracket (e.g.
    from x import ( # fmt: skip) when a standalone comment is among the bracket's
    contents (#​5161)
  • Fix an AST safety error when separate # type: ignore comments in a parenthesized
    attribute chain were merged onto one physical line (#​5297)
  • Preserve comments and blank lines outside requested ranges when formatting with
    --line-ranges (#​5175)
  • Fix crash when # fmt: skip is used on one-line async def, async with, and
    async for statements containing a semicolon (#​5311)
  • Stop converting form feeds or other similar characters in docstrings into newlines
    (#​5461)
  • Fix --skip-source-first-line turning the skipped line's CRLF ending into \r\r\n
    when reformatting a file with CRLF line endings (#​5438)
Preview style
New preview features
  • Add missing blank lines after classes whose last method has an ellipsis body (#​5439)
  • Split only the brackets holding a magic trailing comma when more trailers follow them
    (e.g. stop splitting inside the [2] of [1,][2](3)) (#​5448)
  • Keep dictionary keys containing operators together on one line when the value can be
    wrapped onto a new line instead (#​5435)
  • Remove redundant parentheses around individual variables in unpacking targets (e.g.
    for (x), (y) in points: becomes for x, y in points:) (#​5416)
  • Normalize uppercase T prefixes on t-strings to lowercase (#​5425)
  • Remove redundant parentheses around generator expressions (#​5304, #​5369)
  • Preserve two blank lines before a top-level class starting inside a # fmt: off block
    after an import (#​5238)
  • Fix unnecessary parentheses around short right-hand expressions in indexed assignments
    (e.g. x[key] = expr) (#​5095)
  • Parenthesize tuple expressions in yield statements for consistency with function
    calls and returns (#​5170)
  • Stop splitting between a variable and its operator (not in, ==, is, ...) when
    the right-hand side is a bracketed expression, and instead split inside the brackets
    (#​5135)
  • In .pyi stub files, enforce a blank line after a function or method that has a
    docstring-only body when another comment or statement follows it (#​5158)
Updates to existing preview features
  • Fix crash in stub files when # fmt: skip is placed on a function in a group of
    same-name decorated functions (e.g. @overloads or a property setter) (#​5430)
  • Keep the parentheses around a lambda used as the iterable of a comprehension (e.g.
    [x for x in (lambda: 0) if x]) (#​5176, #​5200)
Updates to existing unstable features
  • Do not treat multi-line expressions with merged strings and trailing # type: ignore
    comments as single-line unsplittable expressions (#​5466)
  • Fix duplicated inline comment when stripping the parentheses around a string or
    merging a backslash-continued string on the same line (#​5449)
  • Split long stringified return annotations even when the function has parameters
    (#​5427)
  • Don't hug brackets when doing so would join two # type: ignore comments onto one
    line (#​5271)
  • Fix a crash when # type: ignore is lost during formatting of a long parenthesized
    string (#​5329)
  • Fix only the first part of an implicitly concatenated unmergeable string (e.g.
    r"..." r"...") being wrapped in parentheses (#​5434)
Configuration
  • Add support for NO_COLOR environment variable to disable ANSI output (#​5129)
  • Remove spurious target version warning when runtime version is included in a
    --target-version flag (#​5167)
  • Fix --force-exclude not excluding files whose path contains .. (e.g.
    black ../generated/file.py run from a subdirectory) (#​5471)
  • Fall back to the default configuration, with a warning, when the given sources share
    no common project root (e.g. they are on different drives on Windows) instead of
    crashing (#​5386)
  • Fix loading a stale cached pyproject.toml path when --code is used from different
    working directories in the same process (#​5152)
  • Add validation for --line-ranges values (#​5107)
  • Ignore empty cache files instead of raising an EOFError (#​5192)
  • Reject non-string include and force-exclude values in pyproject.toml (#​5193)
  • Validate BLACK_NUM_WORKERS values and report invalid values as usage errors instead
    of crashing (#​5211)
  • Ignore permission errors when reading cache (#​5258)
Packaging
  • Reduce the size of Linux standalone binaries by stripping debug symbols during the
    PyInstaller release build (#​5223)
  • Black is now released using GitHub
    Immutable Releases
    (#​5296)
Performance
  • Fix superlinear runtime growth with the number of input files (#​5450)
  • Improve performance on strings containing many consecutive backslashes (#​5163)
  • Improve performance on files with many # fmt: skip/# fmt: off/# fmt: on comments
    (#​5169, #​5190, #​5232)
  • Improve performance on long calls and collections (#​5177)
  • Improve performance on multiline strings inside large collections (e.g. a dict literal
    with triple-quoted strings as values) (#​5188)
  • Improve performance on files with many soft keywords (e.g. match/case blocks)
    (#​5186)
  • Improve performance on long semicolon-separated statements (in the stable style) and
    large dict literals (in --preview) (#​5184)
  • Improve performance of --line-ranges on files with many sibling blocks (a long
    if/elif chain, a match with many cases, or many top-level definitions) (#​5213)
  • Improve performance on deeply nested bracketed expressions (#​5171, #​5242)
  • Improve performance on lists and subscripts holding one long expression without
    operators (e.g. a long run of implicitly concatenated strings inside []) (#​5239)
  • Improve performance on deeply chained operations (e.g. a long a ** b ** c ** ...
    chain) (#​5235)
  • Improve performance on long if/elif chains and other compound statements with many
    clauses (#​5322)
  • Improve performance of string_processing:
    • when merging implicitly concatenated f-strings containing long string literals
      (#​5165)
    • when merging long implicitly concatenated strings (#​5173, #​5194)
    • when rewriting large nodes (e.g. "%s ..." % (a, b, c, ...)) (#​5178, #​5199, #​5220)
    • when splitting long string literals (#​5183)
Output
  • Report parser failures using editor-friendly path:line:column locations (#​5237)
  • Fix crash when writing formatted code or diffs to a sys.stdout that has no buffer
    attribute (e.g. in Jupyter notebooks) (#​5411)
  • Report parse failures on Black's own output as internal errors (#​5383)
Blackd
  • Return HTTP 400 instead of 500 when the X-Python-Variant header is empty or has an
    empty entry (e.g. a trailing comma) (#​5428)
  • Allow optional whitespace around comma-separated versions and pyi in the
    X-Python-Variant header (#​5441)
Integrations
  • Remove unused migrate-black script (#​5319)
  • Support PEP 440 version specifiers in tool.black.required-version for the GitHub
    Action (#​5399)
  • Add outputs (is_formatted, change_count, same_count, failure_count) to GitHub
    Action runs (#​5408)
Documentation
  • Document vim-python-pep8-indent, which provides an indentexpr for Black-style
    insert-mode indentation (#​5288)

v26.5.1

Compare Source

Stable style
  • Fix unstable formatting of annotated assignments whose subscript annotation contains
    an inline comment (e.g. x: list[ # pyright: ignore[...]) (#​5130)
  • Preserve inline comments (including # type: ignore) immediately before a
    # fmt: skip line, avoiding AST equivalence failures (#​5139)
Packaging
  • Correct the version in the published executables (#​5137)
Documentation
  • Add Neovim integration guide covering conform.nvim, ALE, and simple command approaches
    (#​5124)

v26.5.0

Compare Source

Highlights
  • Add support for unpacking in comprehensions (PEP 798) and for lazy imports (PEP 810),
    both new syntactic features in Python 3.15 (#​5048)
  • Python 3.15 is now supported. Compiled wheels are not yet provided for Python 3.15, so
    performance may be slower than on existing Python versions. Wheels will be provided
    once Python 3.15 is later in its release cycle. (#​5127)
Stable style
  • Fix # fmt: skip being ignored in nested if expressions with parenthesized in
    clauses (#​4903)
  • Add syntactic support for Python 3.15 (#​5048)
  • Fix crash when an f-string follows a # fmt: off comment inside brackets (#​5097)
  • Preserve multiline compound statement headers when # fmt: skip is placed on the
    colon line (#​5117)
Preview style
  • Improve heuristics around whether blank lines should appear before, within and after
    groups of same-name decorated functions (such as @overload groups) in .pyi stub
    files (#​5021)
  • Fix blank lines being removed between a function and a decorated class in .pyi stub
    files (#​5092)
  • Prevent string merger from creating unsplittable long lines when a pragma comment
    (e.g. # type: ignore) follows the closing bracket (#​5096)
Packaging
Output
  • Improve parse error readability by showing multi-line output with an error pointer.
    (#​5068)
  • Add SourceASTParseError to distinguish source parse failures from internal safety
    errors, improving error reporting when Black's lenient parser accepts input that
    ast.parse() rejects (#​5080)
Blackd
  • Return HTTP 400 (Bad Request) for source parse failures instead of HTTP 500, keeping
    HTTP 500 only for genuine internal safety errors (#​5080)
Integrations
  • Added documentation for doctest formatting tools and updated the integrations index to
    match (#​4916)
Documentation
  • Use "Version X.Y.Z" headings in changelog for stable permalink anchors on ReadTheDocs
    (#​5063)
  • Note in the editor integrations that the SublimeText sublack plugin is archived and
    unmaintained (#​5082)

v26.3.1

Compare Source

Stable style
  • Prevent Jupyter notebook magic masking collisions from corrupting cells by using
    exact-length placeholders for short magics and aborting if a placeholder can no longer
    be unmasked safely (#​5038)
Configuration
  • Always hash cache filename components derived from --python-cell-magics so custom
    magic names cannot affect cache paths (#​5038)
Blackd
  • Disable browser-originated requests by default, add configurable origin allowlisting
    and request body limits, and bound executor submissions to improve backpressure
    (#​5039)

v26.3.0

Compare Source

Stable style
  • Don't double-decode input, causing non-UTF-8 files to be corrupted (#​4964)
  • Fix crash on standalone comment in lambda default arguments (#​4993)
  • Preserve parentheses when # type: ignore comments would be merged with other
    comments on the same line, preventing AST equivalence failures (#​4888)
Preview style
  • Fix bug where if guards in case blocks were incorrectly split when the pattern had
    a trailing comma (#​4884)
  • Fix string_processing crashing on unassigned long string literals with trailing
    commas (one-item tuples) (#​4929)
  • Simplify implementation of the power operator "hugging" logic (#​4918)
Packaging
  • Fix shutdown errors in PyInstaller builds on macOS by disabling multiprocessing in
    frozen environments (#​4930)
Performance
  • Introduce winloop for windows as an alternative to uvloop (#​4996)
  • Remove deprecated function uvloop.install() in favor of uvloop.new_event_loop()
    (#​4996)
  • Rename maybe_install_uvloop function to maybe_use_uvloop to simplify loop
    installation and creation of either a uvloop/winloop eventloop or default eventloop
    (#​4996)
Output
  • Emit a clear warning when the target Python version is newer than the running Python
    version, since AST safety checks cannot parse newer syntax. Also replace the
    misleading "INTERNAL ERROR" message with an actionable error explaining the version
    mismatch (#​4983)
Blackd
  • Introduce winloop to be used when windows in use which enables blackd to run faster on
    windows when winloop is installed. (#​4996)
Integrations
  • Remove unused gallery script (#​5030)
  • Harden parsing of black requirements in the GitHub Action when use_pyproject is
    enabled so that only version specifiers are accepted and direct references such as
    black @ https://... are rejected. Users should upgrade to the latest version of the
    action as soon as possible. This update is received automatically when using
    psf/black@stable, and is independent of the version of Black installed by the
    action. (#​5031)
Documentation
  • Expand preview style documentation with detailed examples for wrap_comprehension_in,
    simplify_power_operator_hugging, and wrap_long_dict_values_in_parens features
    (#​4987)
  • Add detailed documentation for formatting Jupyter Notebooks (#​5009)

v26.1.0

Compare Source

Highlights

Introduces the 2026 stable style (#​4892), stabilizing the following changes:

  • always_one_newline_after_import: Always force one blank line after import
    statements, except when the line after the import is a comment or an import statement
    (#​4489)
  • fix_fmt_skip_in_one_liners: Fix # fmt: skip behavior on one-liner declarations,
    such as def foo(): return "mock" # fmt: skip, where previously the declaration would
    have been incorrectly collapsed (#​4800)
  • fix_module_docstring_detection: Fix module docstrings being treated as normal
    strings if preceded by comments (#​4764)
  • fix_type_expansion_split: Fix type expansions split in generic functions (#​4777)
  • multiline_string_handling: Make expressions involving multiline strings more compact
    (#​1879)
  • normalize_cr_newlines: Add \r style newlines to the potential newlines to
    normalize file newlines both from and to (#​4710)
  • remove_parens_around_except_types: Remove parentheses around multiple exception
    types in except and except* without as (#​4720)
  • remove_parens_from_assignment_lhs: Remove unnecessary parentheses from the left-hand
    side of assignments while preserving magic trailing commas and intentional multiline
    formatting (#​4865)
  • standardize_type_comments: Format type comments which have zero or more spaces
    between # and type: or between type: and value to # type: (value) (#​4645)

The following change was not in any previous stable release:

  • Regenerated the _width_table.py and added tests for the Khmer language (#​4253)

This release also bumps pathspec to v1 and fixes inconsistencies with Git's
.gitignore logic (#​4958). Now, files will be ignored if a pattern matches them, even
if the parent directory is directly unignored. For example, Black would previously
format exclude/not_this/foo.py with this .gitignore:

exclude/
!exclude/not_this/

Now, exclude/not_this/foo.py will remain ignored. To ensure exclude/not_this/ and
all of its children are included in formatting (and in Git), use this .gitignore:

*/exclude/*
!*/exclude/not_this/

This new behavior matches Git. The leading */ are only necessary if you wish to ignore
matching subdirectories (like the previous behavior did), and not just matching root
directories.

Output
  • Explicitly shutdown the multiprocessing manager when run in diff mode too (#​4952)
Integrations
  • Upgraded PyPI upload workflow to use Trusted Publishing (#​4611)

Configuration

📅 Schedule: (in timezone US/Central)

  • Branch creation
    • At any time (no schedule defined)
  • Automerge
    • At any time (no schedule defined)

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

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@bkeryan bkeryan mentioned this pull request Nov 5, 2026
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github-actions Bot commented Nov 6, 2026

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Test Results

    44 files   -  14      44 suites   - 14   51m 17s ⏱️ - 15m 45s
   649 tests  -  26     649 ✅  -  26      0 💤 ±0  0 ❌ ±0 
18 966 runs   - 434  17 912 ✅  - 434  1 054 💤 ±0  0 ❌ ±0 

Results for commit 6cbed6b. ± Comparison against base commit 7db6692.

This pull request removes 26 tests. 
tests.acceptance.test_client_generator ‑ test___all_registered_measurements___create_client___renders_without_error
tests.acceptance.test_client_generator ‑ test___interactive_mode_with_registered_measurements___create_client___renders_without_error
tests.acceptance.test_client_generator ‑ test___interactive_mode_without_registered_measurements___create_client___raises_exception
tests.acceptance.test_client_generator ‑ test___localized_measurement___create_client___render_without_error
tests.acceptance.test_client_generator ‑ test___non_streaming_measurement___create_client___render_with_proper_line_ending
tests.acceptance.test_client_generator ‑ test___non_streaming_measurement___create_client___render_without_error
tests.acceptance.test_client_generator ‑ test___non_streaming_measurement___create_client___render_without_mypy_error
tests.acceptance.test_client_generator ‑ test___void_measurement___create_client___render_without_error
tests.acceptance.test_non_streaming_measurement_client ‑ test___measurement_plugin_client___measure___converts_output_types
tests.acceptance.test_non_streaming_measurement_client ‑ test___measurement_plugin_client___measure___returns_output
…

@bkeryan

bkeryan commented Nov 6, 2026

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Closing until ni-python-styleguide 0.6 is released.

@bkeryan bkeryan closed this Nov 6, 2026
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renovate Bot commented Nov 6, 2026

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Renovate Ignore Notification

Because you closed this PR without merging, Renovate will ignore this update. You will not get PRs for any future 26.x releases. But if you manually upgrade to 26.x then Renovate will re-enable minor and patch updates automatically.

If you accidentally closed this PR, or if you changed your mind: rename this PR to get a fresh replacement PR.

@renovate
renovate Bot deleted the users/renovate/pypi-black-vulnerability branch November 6, 2026 18:39
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@csjall csjall Awaiting requested review from csjall csjall is a code owner
@dixonjoel dixonjoel Awaiting requested review from dixonjoel dixonjoel is a code owner
@bkeryan bkeryan Awaiting requested review from bkeryan bkeryan is a code owner

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