[dependabot]

Updates the requirements on mcp, python-dotenv, pypdf, pillow and ruff to permit the latest version.
Updates mcp to 2.3.0

Release notes

Sourced from mcp's releases.

v2.3.0

pip install -U mcp. Docs: https://py.sdk.modelcontextprotocol.io/

Mostly fixes, plus three new options. A few things behave differently, so skim these first:

Behaviour changes

httpx2>=2.10.0 is now required (#3600)

• It was >=2.5.0. The new max_sse_event_size option needs it.
• Nothing to do unless you pin httpx2 below 2.10.

A tool with an invalid x-mcp-header annotation fails at registration (#3620)

• @mcp.tool(), add_tool and Tool.from_function raise InvalidSignature, naming the tool and the problem.
• Until now the server started, and 2026-07-28 clients silently dropped the tool from their listing.
• Refused: anything other than a plain str, int or bool parameter (so also str | None, float, lists and enums), a header name that isn't a valid token, and two names that differ only by case.
• For an optional header parameter, give the schema directly: Annotated[str | None, WithJsonSchema({"type": "string", "x-mcp-header": "Region"})] = None.

Empty _meta and params are no longer sent (#3628)

• On 2025-11-25 and earlier connections, 2.x sent "_meta": {} on every request. Some servers reject that. It is now left out, as in v1.
• ping and list requests without a cursor go out with no params member.
• On the receiving side ctx.meta is None rather than {}, and middleware sees ctx.params as None for a request without params.
• 2026-07-28 connections are unchanged.

initialize leaves out experimental when none is configured (#3614)

• It used to send "experimental": {}. server/discover already left it out.
• Client code reading capabilities.experimental on a legacy connection should handle None.

Mcp-Param-* validation looks the tool up by name (#3630)

• MCPServer no longer runs tools/list for every tools/call, so middleware no longer sees that extra request.
• The registered schema is what gets checked. Middleware that filters or rewrites tools/list no longer affects it.

An interactive OAuth login no longer counts against request timeouts (#3635)

• The timeout pauses while OAuthClientProvider waits on redirect_handler and callback_handler.
• This fixes Client(mode="auto") settling on 2025-11-25 when the login took longer than 10 seconds.
• A request timeout no longer ends a login nobody finishes. Put a limit inside callback_handler if you need one.

New

• max_sse_event_size= on streamable_http_client and StreamableHttpParameters. The default stays 1 MiB per SSE event; raise it, or pass None, for larger tool results (#3600).
• MCPServer(subscriptions=False) stops serving subscriptions/listen and advertises listChanged and subscribe as false (#3626).
• Server(get_tool_input_schema=...) lets a low-level server supply a tool's schema for header validation without running its tools/list handler (#3630).
• Client.call_tool re-lists the tools and retries once after a HeaderMismatch (-32020) rejection (#3627).

Fixes

• ctx: Context[AppState] works on prompts and resource templates, not only on tools (#3624).
• An explicit "structuredContent": null is checked against the output schema instead of being treated as missing (#3621).
• A progress_callback that raises no longer fails the call on an in-process Client(server) (#3623).
• Client OpenTelemetry spans record JSON-RPC error responses. With mode="auto", connecting to a server without server/discover now shows one ERROR span for the probe (#3629).
• stdio_client resolves the executable off the event loop on Windows (#3510).

... (truncated)

Commits

• 2118f14 docs: refresh translations for recent English changes (#3636)
• ed9b2d6 Stop counting an interactive OAuth login against request timeouts (#3635)
• d5cebd1 Keep inline-snapshot disabled when pytest runs in a terminal (#3634)
• c15566c Link What's new to the Header parameters page (#3632)
• 4d29994 Let a newer Deploy Docs run cancel the one in progress (#3633)
• 0acea60 Bump urllib3 from 2.7.0 to 2.8.0 (#3607)
• c54075c Look the tool schema up by name for Mcp-Param-* validation instead of running...
• 9afccae Retry a tool call once after a HeaderMismatch rejection (#3627)
• cafa33b Record JSON-RPC error responses on the client OpenTelemetry span (#3629)
• 0b2fd3e Omit an empty _meta and empty params from outbound requests (#3628)
• Additional commits viewable in compare view

Updates python-dotenv to 1.2.4

Release notes

Sourced from python-dotenv's releases.

v1.2.4

Fixed

• dotenv get no longer exits with code 1 for empty string values (KEY=) by [@​ShamikOfficial] in #700
• An unquoted empty value followed by an inline comment (e.g. KEY= # comment) is now parsed as an empty string instead of the comment text by [@​Noethix55555] in #663
• dotenv run --no-override now expands variable references with the same precedence as load_dotenv(override=False), so a value like ${BASE}/suffix uses the existing BASE from the environment instead of the one from the .env file by [@​ROTl24] in #698

Changelog

Sourced from python-dotenv's changelog.

[1.2.4] - 2026-10-01

Fixed

• dotenv get no longer exits with code 1 for empty string values (KEY=) by [@​ShamikOfficial] in #700
• An unquoted empty value followed by an inline comment (e.g. KEY= # comment) is now parsed as an empty string instead of the comment text by [@​Noethix55555] in #663
• dotenv run --no-override now expands variable references with the same precedence as load_dotenv(override=False), so a value like ${BASE}/suffix uses the existing BASE from the environment instead of the one from the .env file by [@​ROTl24] in #698

[1.2.3] - 2026-08-16

Fixed

• Strip a leading UTF-8 BOM from .env file contents so the first variable is no longer silently lost when the file is saved with BOM (e.g. by some JetBrains IDEs on Windows) by [@​h1whelan] in #640
• set_key now escapes backslashes, so values containing them (Windows paths, regular expressions) survive a write/read round-trip. Quoted values ending in an escaped backslash are no longer mis-parsed as an escaped quote, which used to swallow the following lines by [@​dchaudhari7177] in #680
• dotenv run now prints a friendly error instead of a traceback when no command is given by [@​bbc2] in #606
• Cache the parsed result for empty .env files so repeated dotenv_values/load_dotenv calls no longer re-read the file by [@​ReinerBRO] in #638

[1.2.2] - 2026-03-01

Added

• Support for Python 3.14, including the free-threaded (3.14t) build. (#588)

Changed

• The dotenv run command now forwards flags directly to the specified command by [@​bbc2] in #607
• Improved documentation clarity regarding override behavior and the reference page.
• Updated PyPy support to version 3.11.
• Documentation for FIFO file support.
• Dropped Support for Python 3.9.

Fixed

• Improved set_key and unset_key behavior when interacting with symlinks by [@​bbc2] in [790c5c0]
• Corrected the license specifier and added missing Python 3.14 classifiers in package metadata by [@​JYOuyang] in #590

Breaking Changes

• dotenv.set_key and dotenv.unset_key used to follow symlinks in some situations. This is no longer the case. For that behavior to be restored in all cases, follow_symlinks=True should be used.

• In the CLI, set and unset used to follow symlinks in some situations. This is no longer the case.

• dotenv.set_key, dotenv.unset_key and the CLI commands set and unset used to reset the file mode of the modified .env file to 0o600 in some situations. This is no longer the case: The original mode of the file is now preserved. Is the file needed to be created or wasn't a regular file, mode 0o600 is used.

... (truncated)

Commits

• a565c2c Bump version: 1.2.3 → 1.2.4
• 4a7abd0 docs: add 1.2.4 release notes (#663, #698, #700)
• f215c02 fix: dotenv get exits 0 for empty string values (#700)
• 58f2d7c test: make test_run_with_command_flags portable and meaningful (#709)
• e0310e5 fix: honor --no-override when expanding variables in dotenv run (#698)
• a00cb2e docs: add CHANGELOG entry for #663 (fix #600)
• f5485a6 fix: parse empty unquoted value with inline comment as empty string
• 49515af Bump version: 1.2.2 → 1.2.3
• 8ac846f chore: add release runbook (RELEASING.md) and make release target
• bb31c94 docs: add 1.2.3 release notes (#606, #638, #680)
• Additional commits viewable in compare view

Updates pypdf to 6.21.1

Release notes

Sourced from pypdf's releases.

Version 6.21.1, 2026-10-17

What's new

Security (SEC)

• Only open /DCTDecode image data with the Pillow JPEG plugin (#4222) by @​metsw24-max

Full Changelog

Changelog

Sourced from pypdf's changelog.

Version 6.21.1, 2026-10-17

Security (SEC)

• Only open /DCTDecode image data with the Pillow JPEG plugin (#4222)

Full Changelog

Version 6.21.0, 2026-10-16

Security (SEC)

• Improve performance and limit field work (#4219)
• Limit stream parsing work (#4218)

New Features (ENH)

• Allow custom fit modes for named destinations (#4181)

Bug Fixes (BUG)

• Treat NUL as whitespace in ArrayObject (#4198)
• Avoid overwriting unread objects in add_form_topname (#4190)
• Read an indirect page box on a writer page (#4179)

Full Changelog

Version 6.20.1, 2026-10-12

Security (SEC)

• Prevent cyclic tree handling (#4188)

Bug Fixes (BUG)

• Only read the color operator from a text field's default appearance (#4158)

Full Changelog

Version 6.20.0, 2026-10-09

Security (SEC)

• Limit work per stream (filter count, accumulated decoding work) (#4173)

New Features (ENH)

• Add support for BrotliDecode filter (PDF 2.0) (#4168)

Performance Improvements (PI)

• Parse an embedded CFF font program once per stream (#4164)
• Parse numbers, indirect references, names and nulls faster (#4148)
• Do not inherit PdfObject from a Protocol (#4149)
• Speed up cloning direct objects (#4152)

Bug Fixes (BUG)

• Report the correct page number for identical pages (#4154)
• Decrypt the XMP metadata stream unless /EncryptMetadata is false (#4151)

... (truncated)

Commits

• 1a6de8d REL: 6.21.1
• 512d8eb SEC: Only open /DCTDecode image data with the Pillow JPEG plugin (#4222)
• 7abdc8e DOC: Clarify security PR process
• 1145329 REL: 6.21.0
• 5ef728f SEC: Improve performance and limit field work (#4219)
• 18bd298 SEC: Limit stream parsing work (#4218)
• 9f86100 DEV: Ignore ruff rule ICN001 (#4206)
• 1d64c39 ENH: Allow custom fit modes for named destinations (#4181)
• 14ea596 DEV: Bump actions/download-artifact from 8.0.1 to 8.0.2 (#4204)
• c7c6d2a DEV: Bump actions/upload-artifact from 7.0.1 to 7.0.2 (#4205)
• Additional commits viewable in compare view

Updates pillow to 13.0.0

Release notes

Sourced from pillow's releases.

13.0.0

https://pillow.readthedocs.io/en/stable/releasenotes/13.0.0.html

Removals

• Remove undocumented GifImagePlugin._save_netpbm #9901 [@​akx]
• Remove ExifTags.IFD.Makernote #9850 [@​radarhere]
• Drop support for Python 3.10 #9750 [@​hugovk]
• Remove deprecations for Pillow 13.0.0 #9751 [@​radarhere]

Deprecations

• Deprecate IM image format #9849 [@​radarhere]
• Deprecate ImageQt align8to32() in favour of raw encoder stride #9940 [@​akx]
• Deprecate JpegImageFile.load_djpeg #9924 [@​akx]

Documentation

• Update release notes for Pillow 13.0.0 #10223 [@​hugovk]
• Correct the ImageOps.fit centering corner documentation #10118 [@​FanWu-ai]
• Update Tidelift links #10102 [@​radarhere]
• Correct bullet point syntax in release notes #10069 [@​radarhere]
• Update ImageDraw signatures in docs #10065 [@​ZainnQureshii]
• Update macOS tested Pillow versions #10048 [@​hugovk]
• Add pillow-wmf and pillow-zx-spectrum to third-party plugins list #10037 [@​bitplane]
• Delete CLAUDE.md #10027 [@​hugovk]
• Add pillow-lunasvg to third-party plugins list #10016 [@​Maksim-Burtsev]
• Extend security policy #10018 [@​hugovk]
• Update Color3DLUT description #10004 [@​radarhere]
• Document the internal image distinctness constraints #9752 [@​akx]
• Update macOS tested Pillow versions #10000 [@​radarhere]
• Link security policy in project metadata #9980 [@​hugovk]
• Image.new(): correct docstring and comment about uninitialized memory #9960 [@​akx]
• Add AGENTS.md #9582 [@​aclark4life]
• Add release notes for #8811 #9937 [@​radarhere]
• Fixed typo #9923 [@​radarhere]
• Fixed typo #9922 [@​radarhere]
• C interface is internal #9879 [@​radarhere]
• Correct function references #9895 [@​radarhere]
• Revert move from python-pillow.org to python-pillow.github.io #9830 [@​aclark4life]
• Add additional CVE numbers to 12.3.0 release notes #9777 [@​radarhere]
• Remove remaining :rtype:s from docstrings #9742 [@​akx]
• Update macOS tested Pillow versions #9759 [@​radarhere]

Dependencies

• Update dependency cibuildwheel to v4.3.1 #10175 [@renovate[bot]]
• Update dependency cibuildwheel to v4.3.0 #10132 [@renovate[bot]]
• Update dependency harfbuzz to v14.5.0 #10108 [@renovate[bot]]
• Update github-actions #10111 [@renovate[bot]]

... (truncated)

Changelog

Sourced from pillow's changelog.

Changelog (Pillow)

11.1.0 and newer

See GitHub Releases:

• https://github.com/python-pillow/Pillow/releases

11.0.0 (2024-10-15)

• Update licence to MIT-CMU #8460 [hugovk]

• Conditionally define ImageCms type hint to avoid requiring core #8197 [radarhere]

• Support writing LONG8 offsets in AppendingTiffWriter #8417 [radarhere]

• Use ImageFile.MAXBLOCK when saving TIFF images #8461 [radarhere]

• Do not close provided file handles with libtiff when saving #8458 [radarhere]

• Support ImageFilter.BuiltinFilter for I;16* images #8438 [radarhere]

• Use ImagingCore.ptr instead of ImagingCore.id #8341 [homm, radarhere, hugovk]

• Updated EPS mode when opening images without transparency #8281 [Yay295, radarhere]

• Use transparency when combining P frames from APNGs #8443 [radarhere]

• Support all resampling filters when resizing I;16* images #8422 [radarhere]

• Free memory on early return #8413 [radarhere]

• Cast int before potentially exceeding INT_MAX #8402 [radarhere]

... (truncated)

Commits

• 293218a 13.0.0 version bump
• 262e8e4 Update release notes for Pillow 13.0.0 (#10223)
• af56ace Validate TIFF tag values against libtiff's own field definition before TIFFSe...
• 570df03 Validate TIFF tag values against libtiff's own field definition before TIFFSe...
• 53318b5 Take libtiff scanline geometry tags from the image, not tiffinfo/exif (#10226)
• 0a87417 Bound retained TIFF tag data by stream size (#10225)
• 11582e5 Fix heap buffer overflow in _tiffWriteProc when saving TIFF to BytesIO (#10224)
• 8501adc Fix test
• ec5f1cb Take libtiff scanline geometry tags from the image, not tiffinfo/exif
• 4b63dff Share TIFF tag data budget across frames
• Additional commits viewable in compare view

Updates ruff to 0.17.1

Release notes

Sourced from ruff's releases.

0.17.1

Release Notes

Released on 2026-10-15.

Preview features

• [pycodestyle] Don't treat None, True, or False as keywords (E271-E274) (#29322)

Bug fixes

• Fix dedent with multiple leading comments (#29382)
• [flake8-pyi] Detect legacy positional-only parameters in __new__ methods (PYI063) (#28502)
• [flake8-pyi] Fix false positives on quoted annotations (PYI036) (#29274)
• [perflint] Avoid invalid comprehension suggestions (PERF401, PERF403) (#29366)

Rule changes

• Treat more collections and weakref containers as mutable (#29213)

Documentation

• [flake8-import-conventions] Update default and example aliases (#29333)

Contributors

• @​fixfon
• @​mmaxjr
• @​joshuavetos
• @​nekomario28
• @​ntBre
• @​shan3520

Install ruff 0.17.1

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ruff/releases/download/0.17.1/ruff-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ruff/releases/download/0.17.1/ruff-installer.ps1 | iex"

Download ruff 0.17.1

| File | Platform | Checksum |

... (truncated)

Changelog

Sourced from ruff's changelog.

0.17.1

Released on 2026-10-15.

Preview features

• [pycodestyle] Don't treat None, True, or False as keywords (E271-E274) (#29322)

Bug fixes

• Fix dedent with multiple leading comments (#29382)
• [flake8-pyi] Detect legacy positional-only parameters in __new__ methods (PYI063) (#28502)
• [flake8-pyi] Fix false positives on quoted annotations (PYI036) (#29274)
• [perflint] Avoid invalid comprehension suggestions (PERF401, PERF403) (#29366)

Rule changes

• Treat more collections and weakref containers as mutable (#29213)

Documentation

• [flake8-import-conventions] Update default and example aliases (#29333)

Contributors

• @​fixfon
• @​mmaxjr
• @​joshuavetos
• @​nekomario28
• @​ntBre
• @​shan3520

0.17.0

Released on 2026-10-09.

The executables in our macOS and Windows release archives and ruff wheels are now code-signed. macOS executables are signed with an Apple Developer ID certificate and notarized by Apple. Windows executables have timestamped Authenticode signatures from Azure Artifact Signing. This enables verification of the release publisher and binary integrity, supports publisher-based allowlisting, and should reduce security warnings and antivirus false positives.

Breaking changes

• Update the default and latest Python versions for 3.15 (#28792)

  Ruff now defaults to Python 3.11 instead of 3.10 when no Python version is configured through target-version or requires-python. When checking for syntax errors without a configured Python version, Ruff now defaults to Python 3.15

... (truncated)

Commits

• 4683270 Bump version to 0.17.1 (#29420)
• 3514027 [ty] Update typing conformance suite pin (#29417)
• 8294556 Update referenced PR security-review workflow (#29237)
• d1e1b1f [ty] Preserve recursive aliases when rebuilding intersections (#29057)
• 9352615 [perflint] Avoid invalid comprehension suggestions (PERF401, PERF403) (...
• 83a3afc Fix dedent with multiple leading comments (#29382)
• b42a873 [ty] Clarify object attribute write-contract rationale (#29384)
• d01678e [ty] Clarify object attribute write-contract rationale (#29384)
• 355b42a [ty] Avoid writable override contracts from object (#29373)
• e26e6d2 [ty] Collect intersection inference through constraint relations (#28677)
• Additional commits viewable in compare view

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[daggerstuff]

Closing as not-planned: this bump is un-adoptable until fastembed lifts its pillow<13.0 cap (fastembed>=0.9.0 requires pillow>=12.0.0,<13.0 on python_full_version >= 3.14, which conflicts with Pillow>=13.0.0 here — uv resolution fails for the py3.15 split). Dependabot will re-propose when fastembed relaxes the constraint.

[daggerstuff]

Un-adoptable: conflicts with fastembed's pillow<13.0 cap (see above).

[dependabot]

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