chore: bump the minor-updates group across 1 directory with 7 updates

[dependabot]

Bumps the minor-updates group with 7 updates in the / directory:

Package	From	To
pytest	9.0.3	9.1.1
mypy	2.1.0	2.3.0
ruff	0.15.13	0.16.0
commitizen	4.15.1	4.16.5
pytest-asyncio	1.3.0	1.4.0
click	8.3.3	8.4.2
fastmcp	3.2.4	3.4.4

Updates pytest from 9.0.3 to 9.1.1

Release notes

Sourced from pytest's releases.

9.1.1

pytest 9.1.1 (2026-06-19)

Bug fixes

• #14220: Fixed a logic bug in pytest.RaisesGroup which would might cause it to display incorrect "It matches FooError() which was paired with BarError" messages.
• #14591: Fixed a regression in pytest 9.1.0 which caused overriding a parametrized fixture with an indirect @​pytest.mark.parametrize to fail with "duplicate parametrization of '<fixture name>'".
• #14606: Fixed list-item typing errors from mypy in @pytest.mark.parametrize <pytest.mark.parametrize ref> argvalues parameter.
• #14608: Fixed a regression in pytest 9.1.0 where conftest.py files located in <invocation dir>/test* were no longer loaded as initial conftests when invoked without arguments. This could cause certain hooks (like pytest_addoption) in these files to not fire.

9.1.0

pytest 9.1.0 (2026-06-13)

Removals and backward incompatible breaking changes

• #14533: When using --doctest-modules, autouse fixtures with module, package or session scope that are defined inline in Python test modules (not plugins or conftests) will now possibly execute twice.

  If this is undesirable, move the fixture definition to a conftest.py file if possible.

  Technical explanation for those interested: When using --doctest-modules, pytest possibly collects Python modules twice, once as pytest.Module and once as a DoctestModule (depending on the configuration). Due to improvements in pytest's fixture implementation, if e.g. the DoctestModule collects a fixture, it is now visible to it only, and not to the Module. This means that both need to register the fixtures independently.

Deprecations (removal in next major release)

• #10819: Added a deprecation warning for class-scoped fixtures defined as instance methods (without @classmethod). Such fixtures set attributes on a different instance than the test methods use, leading to unexpected behavior. Use @classmethod decorator instead -- by yastcher.

  See 10819 and 14011.

• #12882: Calling request.getfixturevalue() <pytest.FixtureRequest.getfixturevalue> during teardown to request a fixture that was not already requested is now deprecated and will become an error in pytest 10.

  See dynamic-fixture-request-during-teardown for details.

• #13409: Using non-~collections.abc.Collection iterables (such as generators, iterators, or custom iterable objects) for the argvalues parameter in @pytest.mark.parametrize <pytest.mark.parametrize ref> and metafunc.parametrize <pytest.Metafunc.parametrize> is now deprecated.

  These iterables get exhausted after the first iteration, leading to tests getting unexpectedly skipped in cases such as running pytest.main() multiple times, using class-level parametrize decorators, or collecting tests multiple times.

  See parametrize-iterators for details and suggestions.

• #13946: The private config.inicfg attribute is now deprecated. Use config.getini() <pytest.Config.getini> to access configuration values instead.

  See config-inicfg for more details.

• #14004: Passing baseid to ~pytest.FixtureDef or nodeid strings to fixture registration APIs is now deprecated. These are internal pytest APIs that are used by some plugins.

... (truncated)

Commits

• cf470ec Prepare release version 9.1.1
• e0c8ce6 Merge pull request #14625 from pytest-dev/patchback/backports/9.1.x/a07c31a97...
• 1b82d16 Merge pull request #14624 from pytest-dev/patchback/backports/9.1.x/b375b79ec...
• 501c4bc Merge pull request #14596 from bluetech/doc-classmethod
• b61f588 Merge pull request #14622 from chrisburr/fix-14608-initial-conftest-test-subdir
• 9a567e0 [automated] Update plugin list (#14617) (#14618)
• ef8b299 Merge pull request #14620 from pytest-dev/patchback/backports/9.1.x/680f9f3ed...
• 66abd07 Merge pull request #14220 from bysiber/fix-stale-iexp-raisesgroup
• 79fbf93 Merge pull request #14612 from pytest-dev/patchback/backports/9.1.x/974ed48b6...
• 0d312eb Merge pull request #14611 from bluetech/parametrize-argvalues-typing
• Additional commits viewable in compare view

Updates mypy from 2.1.0 to 2.3.0

Changelog

Sourced from mypy's changelog.

Mypy Release Notes

Next Release

Packaging changes

• No longer provide mypyc-accelerated wheels for macOS x86_64 [mypyc-wheels #119](mypyc/mypy_mypyc-wheels#119)

Mypy 2.3

We've just uploaded mypy 2.3.0 to the Python Package Index (PyPI). Mypy is a static type checker for Python. This release includes new features, performance improvements and bug fixes. You can install it as follows:

python3 -m pip install -U mypy

You can read the full documentation for this release on Read the Docs.

The Upcoming Switch to the New Native Parser

We are planning to enable the new native parser (--native-parser) by default soon. We recommend that you test the native parser in your projects and report any issues in the mypy issue tracker.

Mypyc Free-threading Memory Safety

Free-threaded Python builds that don't have the GIL require additional synchronization primitives or lock-free algorithms to ensure memory safety when there are race conditions (for example, when a thread reads a list item while another thread writes the same list item concurrently). This release greatly improves memory safety of free threading.

List operations are now memory-safe on free threaded Python builds, even in the presence of race conditions. This has some performance cost. For list-heavy workloads, using librt.vecs.vec instead of list is often significantly faster, but note that vec is not (and likely won't be) fully memory safe, and the user is expected to avoid race conditions. The newly introduced librt.threading.Lock helps with this. Using variable-length tuples can also be more efficient than lists, since tuples are immutable and don't require expensive synchronization to ensure memory safety.

Instance attribute access is also (mostly) memory safe now on free-threaded builds in the presence of race conditions. We are planning to fix the remaining unsafe cases in a future release.

Full list of changes:

• Make attribute access memory safe on free-threaded builds (Jukka Lehtosalo, PR 21705)
• Fix unsafe borrowing of instance attributes with free-threading (Jukka Lehtosalo, PR 21688)
• Make list get/set item more memory safe on free-threaded builds (Jukka Lehtosalo, PR 21683)
• Don't borrow list items on free-threaded builds (Jukka Lehtosalo, PR 21679)
• Make multiple assignment from list memory-safe on free-threaded builds (Jukka Lehtosalo, PR 21684)

... (truncated)

Commits

• 8aabf84 Drop +dev from version
• 4d8ad2a Update changelog for 2.3 release (#21728)
• 2c21546 [mypyc] Update documentation of race conditions under free threading (#21726)
• a9f62a3 [mypyc] Make attribute access memory safe on free-threaded builds (#21705)
• 0faa413 Use PYODIDE environment variable for Emscripten cross-compilation detection...
• 3d75cdb [mypyc] Borrow final attributes more aggressively (#21702)
• 24c237d [mypyc] Improve documentation of Final (#21713)
• b5be217 [mypyc] Update free threading Python compatibility docs (#21711)
• cbcb51a Narrow for frozendict membership check (#21709)
• af2bc0f Sync typeshed (#21707)
• Additional commits viewable in compare view

Updates ruff from 0.15.13 to 0.16.0

Release notes

Sourced from ruff's releases.

0.16.0

Release Notes

Released on 2026-07-23.

Check out the blog post for a migration guide and overview of the changes!

Breaking changes

• Ruff now enables a much larger set of rules by default (413, up from 59). See the blog post for more details and the new Default Rules page for a full listing of the enabled rules.

• Ruff can now format Python code blocks in Markdown files and will do this by default. See the documentation for more details.

• Ruff now supports ruff: ignore comments at the ends of lines, like noqa comments, or on the line preceding a diagnostic. For example, these both suppress an unused-import (F401) diagnostic:

  import math  # ruff: ignore[F401]
  ruff: ignore[F401]
  import os

• Fixes are now shown in check and format --check output:

  ❯ ruff format --check .
  unformatted: File would be reformatted
   --> try.md:1:1
    |
  1 | ```python
    - import   math
  2 + import math
  3 | ```
    |
  1 file would be reformatted

  This example also shows off the Markdown formatting.

• format --check now supports the same output formats as the linter, including the github and gitlab outputs for rendering annotations in CI:

  ❯ ruff format --check --output-format github .
  ::error title=ruff (unformatted),file=try.md,line=2,col=8,endLine=2,endColumn=10::try.md:2:8: unformatted: File would be reformatted

  See the CLI help or documentation for the full list of supported formats.

• The filename, location, end_location, fix.edits[].location, and fix.edits[].end_location fields in the JSON output format may now be null rather than defaulting to the empty string and row 1, column 1, respectively.

... (truncated)

Changelog

Sourced from ruff's changelog.

0.16.0

Released on 2026-07-23.

Check out the blog post for a migration guide and overview of the changes!

Breaking changes

• Ruff now enables a much larger set of rules by default (413, up from 59). See the blog post for more details and the new Default Rules page for a full listing of the enabled rules.

• Ruff can now format Python code blocks in Markdown files and will do this by default. See the documentation for more details.

• Ruff now supports ruff: ignore comments at the ends of lines, like noqa comments, or on the line preceding a diagnostic. For example, these both suppress an unused-import (F401) diagnostic:

  import math  # ruff: ignore[F401]
  ruff: ignore[F401]
  import os

• Fixes are now shown in check and format --check output:

  ❯ ruff format --check .
  unformatted: File would be reformatted
   --> try.md:1:1
    |
  1 | ```python
    - import   math
  2 + import math
  3 | ```
    |
  1 file would be reformatted

  This example also shows off the Markdown formatting.

• format --check now supports the same output formats as the linter, including the github and gitlab outputs for rendering annotations in CI:

  ❯ ruff format --check --output-format github .
  ::error title=ruff (unformatted),file=try.md,line=2,col=8,endLine=2,endColumn=10::try.md:2:8: unformatted: File would be reformatted

... (truncated)

Commits

• a2635fd Bump 0.16.0 (#27136)
• 3433449 [ty] Reuse full call diagnostics for implicit setter calls (#27115)
• 2240070 Reflect ruff: ignore and --add-ignore stabilization in documentation (#27...
• 17ef711 Stabilize --add-ignore (#27125)
• ef912bb Add newly stabilized rules to defaults (#27055)
• b30f040 Stabilize new default rules (#27035)
• bcd70c5 Exclude Markdown files from format-dev runs (#27052)
• 87e51e2 Fix format --check spans for syntax errors (#27045)
• afe2723 [flake8-gettext] Stabilize qualified-name and built-in binding resolution (...
• a9702d8 [flake8-bandit] Stabilize string literal binding resolution (S310) (#26944)
• Additional commits viewable in compare view

Updates commitizen from 4.15.1 to 4.16.5

Release notes

Sourced from commitizen's releases.

v4.16.5 (2026-07-16)

Fix

• exclude star-history API from lychee link checker (#2029)

v4.16.4 (2026-06-22)

Fix

• providers/cargo: don't crash on workspace member with fixed version

v4.16.3 (2026-05-30)

Fix

• check: expand env vars in --rev-range (#2005)

v4.16.2 (2026-05-15)

Fix

• tags: widen prerelease and devrelease tag regexes for SemVer2 (#1972)

v4.16.1 (2026-05-15)

Fix

• cz_customize: derive bump_map_major_version_zero from bump_map (#1977)

v4.16.0 (2026-05-12)

Feat

• hooks: support interactive hooks scripts

Commits

• 6afcd8e bump: version 4.16.4 → 4.16.5
• ff23c26 fix: exclude star-history API from lychee link checker (#2029)
• 40b409b ci(deps): bump soupsieve from 2.8.3 to 2.8.4 (#2024)
• 7812abe ci(deps): bump dawidd6/action-homebrew-bump-formula from 7 to 8 (#2022)
• 3885e8b build(deps): update argcomplete requirement from <3.7,>=1.12.1 to >=1.12.1,<3...
• 62fb12d docs(cli/screenshots): update CLI screenshots
• 205e71c bump: version 4.16.3 → 4.16.4
• 86b8361 fix(providers/cargo): don't crash on workspace member with fixed version
• 4765a41 ci(deps): bump peter-evans/find-comment from 3 to 4 (#2020)
• c85e41f docs(cli/screenshots): update CLI screenshots
• Additional commits viewable in compare view

Updates pytest-asyncio from 1.3.0 to 1.4.0

Release notes

Sourced from pytest-asyncio's releases.

pytest-asyncio v1.4.0

1.4.0 - 2026-05-26

Deprecated

• Overriding the event_loop_policy fixture is deprecated. Use the pytest_asyncio_loop_factories hook instead. (#1419)

Added

• Added the pytest_asyncio_loop_factories hook to parametrize asyncio tests with custom event loop factories.

  The hook returns a mapping of factory names to loop factories, and pytest.mark.asyncio(loop_factories=[...]) selects a subset of configured factories per test. When a single factory is configured, test names are unchanged.

  Synchronous @pytest_asyncio.fixture functions now see the correct event loop when custom loop factories are configured, even when test code disrupts the current event loop (e.g., via asyncio.run() or asyncio.set_event_loop(None)). (#1164)

Changed

• Improved the readability of the warning message that is displayed when asyncio_default_fixture_loop_scope is unset (#1298)
• Only import asyncio.AbstractEventLoopPolicy for type checking to avoid raising a DeprecationWarning. (#1394)
• Updated minimum supported pytest version to v8.4.0. (#1397)

Fixed

• Fixed a ResourceWarning: unclosed event loop warning that could occur when a synchronous test called asyncio.run() or otherwise unset the current event loop after pytest-asyncio had run an async test or fixture. (#724)

Notes for Downstream Packagers

• Added dependency on sphinx-tabs >= 3.5 to organize documentation examples into tabs. (#1395)

pytest-asyncio v1.4.0a2

1.4.0a2 - 2026-05-02

Deprecated

• Overriding the event_loop_policy fixture is deprecated. Use the pytest_asyncio_loop_factories hook instead. (#1419)

Added

• Added the pytest_asyncio_loop_factories hook to parametrize asyncio tests with custom event loop factories.

  The hook returns a mapping of factory names to loop factories, and pytest.mark.asyncio(loop_factories=[...]) selects a subset of configured factories per test. When a single factory is configured, test names are unchanged on pytest 8.4+.

  Synchronous @pytest_asyncio.fixture functions now see the correct event loop when custom loop factories are configured, even when test code disrupts the current event loop (e.g., via asyncio.run() or asyncio.set_event_loop(None)). (#1164)

Changed

• Improved the readability of the warning message that is displayed when asyncio_default_fixture_loop_scope is unset (#1298)
• Only import asyncio.AbstractEventLoopPolicy for type checking to avoid raising a DeprecationWarning. (#1394)

... (truncated)

Commits

• 6e14cd2 chore: Prepare release of v1.4.0.
• 4b900fb Build(deps): Bump codecov/codecov-action from 6.0.0 to 6.0.1
• ab9f632 Build(deps): Bump zipp from 3.23.1 to 4.1.0
• a56fc77 Build(deps): Bump hypothesis from 6.152.6 to 6.152.8
• e8bae9b Build(deps): Bump requests from 2.34.0 to 2.34.2
• fc43340 Build(deps): Bump idna from 3.14 to 3.15
• 762eaf5 Build(deps): Bump jaraco-functools from 4.4.0 to 4.5.0
• b62e222 Build(deps): Bump click from 8.3.3 to 8.4.0
• 9190447 Build(deps): Bump pydantic from 2.13.3 to 2.13.4
• 82a393c ci: Remove unnecessary debug output.
• Additional commits viewable in compare view

Updates click from 8.3.3 to 8.4.2

Release notes

Sourced from click's releases.

8.4.2

This is the Click 8.4.1 fix release, which fixes bugs but does not otherwise change behavior and should not result in breaking changes compared to the latest feature release.

PyPI: https://pypi.org/project/click/8.4.2/ Changes: https://click.palletsprojects.com/page/changes/#version-8-4-2 Milestone: https://github.com/pallets/click/milestone/34

• Fix Fish shell completion broken in 8.4.0 by #3126. Newlines and tabs in option help text are now escaped, keeping the original completion format while still supporting multi-line help. #3502 #3043 #3504 #3508
• Deprecated commands and options with empty or missing help text no longer render a stray leading space before the (DEPRECATED) label. #3509
• A {class}Group with invoke_without_command=True marks its subcommand as optional in the usage help, showing [COMMAND] instead of COMMAND. #3059 #3507
• echo_via_pager flushes after each write, so passing a generator streams output to the pager incrementally instead of staying hidden until the pipe buffer fills. #3242 #2542 #3534
• echo_via_pager and get_pager_file no longer close a borrowed stdout stream when no external pager runs, completing the partial I/O operation on closed file fix from #3482. #3449 #3533
• Fix CLI usage symopsis for optional arguments producing double square brackets [[a|b|c]]... whose type already brackets their metavar. #3578
• {func}version_option resolves a package_name that does not match an installed distribution as an import (top-level module) name via {func}importlib.metadata.packages_distributions. Packages whose top-level module name differs from their distribution name (PIL vs Pillow, jwt vs PyJWT) no longer raise RuntimeError out of the box. #2331 #1884 #3125 #3582

8.4.1

This is the Click 8.4.1 fix release, which fixes bugs but does not otherwise change behavior and should not result in breaking changes compared to the latest feature release.

PyPI: https://pypi.org/project/click/8.4.1/ Changes: https://click.palletsprojects.com/page/changes/#version-8-4-1 Milestone: https://github.com/pallets/click/milestone/32

• get_parameter_source() is available during eager callbacks and type conversion again. #3458 #3484
• Zsh completion scripts parse correctly on Windows. #3277 # 3466
• Shell completion of Choice Enum values produces a valid completion result. #3015
• Fix empty byte-string handling in echo. #3487
• Fix closed file error with echo_via_pager. #3449

8.4.0

This is the Click 8.4.0 feature release. A feature release may include new features, remove previously deprecated code, add new deprecation, or introduce potentially breaking changes.

We encourage everyone to upgrade. You can read more about our [Version Support Policy][version] on our website.

... (truncated)

Changelog

Sourced from click's changelog.

Version 8.4.2

Released 2026-06-24

• Fix Fish shell completion broken in 8.4.0 by {pr}3126. Newlines and tabs in option help text are now escaped, keeping the original completion format while still supporting multi-line help. {issue}3502 {issue}3043 {pr}3504 {pr}3508
• Deprecated commands and options with empty or missing help text no longer render a stray leading space before the (DEPRECATED) label. {pr}3509
• A {class}Group with invoke_without_command=True marks its subcommand as optional in the usage help, showing [COMMAND] instead of COMMAND. {issue}3059 {pr}3507
• echo_via_pager flushes after each write, so passing a generator streams output to the pager incrementally instead of staying hidden until the pipe buffer fills. {issue}3242 {issue}2542 {pr}3534
• echo_via_pager and get_pager_file no longer close a borrowed stdout stream when no external pager runs, completing the partial I/O operation on closed file fix from {pr}3482. {issue}3449 {pr}3533
• Fix CLI usage symopsis for optional arguments producing double square brackets [[a|b|c]]... whose type already brackets their metavar. {pr}3578
• {func}version_option resolves a package_name that does not match an installed distribution as an import (top-level module) name via {func}importlib.metadata.packages_distributions. Packages whose top-level module name differs from their distribution name (PIL vs Pillow, jwt vs PyJWT) no longer raise RuntimeError out of the box. {issue}2331 {issue}1884 {issue}3125 {pr}3582

Version 8.4.1

Released 2026-05-21

• get_parameter_source() is available during eager callbacks and type conversion again. {issue}3458 {pr}3484
• Zsh completion scripts parse correctly on Windows. {issue}3277 {pr}3466
• Shell completion of Enum values used as Choice options produces a valid completion result. {issue}3015 {pr}3471
• Fix empty byte-string handling in echo. {issue}3487 {pr}3493
• Fix closed file error with echo_via_pager. {issue}3449 {pr}3482
• Fix open_url on Windows when the file path contains spaces. {issue}2994 {pr}3478

Version 8.4.0

Released 2026-05-17

• {class}ParamType typing improvements. {pr}3371

  • {class}ParamType is now a generic abstract base class,

... (truncated)

Commits

• b2e30a1 Release version 8.4.2
• 7a16b20 Fix package_name resolution when module differs from distribution name (#3582)
• bec5928 Fix package_name resolution when top-level module differs from distribution...
• 916883a Fix tests to not rely on -Wdefault option (#3591)
• 09195f6 Fix double-bracketing of choices in synopsis (#3578)
• 1557e26 Check for warning exception with idiomatic context manager
• d9ff133 Static typing improvements in click.shell_completion (#3460)
• 762c97e Fix double-bracketing of choices in synopsis
• 8929d39 Convert changes to markdown. (#3559)
• 237be50 Move changes headings down a level.
• Additional commits viewable in compare view

Updates fastmcp from 3.2.4 to 3.4.4

Release notes

Sourced from fastmcp's releases.

v3.4.4: Host in Translation

FastMCP 3.4.4 restores HTTP deployment compatibility after the 3.4.3 Host/Origin guard changed default behavior for existing ASGI, serverless, and reverse-proxy deployments. The guard implementation remains available for deployments that opt in with explicit trusted hosts and origins, while 3.x returns to accepting traffic that worked before the patch. This release also adds Hugging Face OAuth provider support, with docs and examples for public and private apps, PKCE, Dynamic Client Registration, and CIMD.

What's Changed

Enhancements ✨

• Hugging Face Auth Integration by @​evalstate in PrefectHQ/fastmcp#4385

Fixes 🐞

• Relax host origin guard defaults by @​jlowin in PrefectHQ/fastmcp#4439
• Restore HTTP host guard compatibility by @​jlowin in PrefectHQ/fastmcp#4472

Docs 📚

• Docs: add v3.4.4 changelog entries by @​jlowin in PrefectHQ/fastmcp#4473

New Contributors

• @​evalstate made their first contribution in PrefectHQ/fastmcp#4385

Full Changelog: PrefectHQ/fastmcp@v3.4.3...v3.4.4

v3.4.3: The Fast and the Secure-ious

FastMCP 3.4.3 closes out a month of SSRF and OAuth hardening: NAT64, 6to4, Teredo, and ISATAP transition addresses can no longer smuggle private IPv4 targets past the SSRF allow-list, Streamable HTTP now validates Host and Origin before session handling to block DNS rebinding against localhost-bound servers, and OAuth redirect validation rejects unsafe schemes and unregistered DCR redirect URIs. Alongside the security work, this release also fixes proxy session teardown races, discriminator-tag handling in JSON schema conversion, and several smaller reliability issues.

What's Changed

Enhancements ✨

• Dedupe discriminator-required helper across schema converters by @​jlowin in PrefectHQ/fastmcp#4362
• Add real Monty sandbox e2e coverage for CodeMode call_tool by @​AlexlaGuardia in PrefectHQ/fastmcp#4274
• Switch prettier hook to rbubley/mirrors-prettier by @​jlowin in PrefectHQ/fastmcp#4366
• feat(remote): add --verify flag for TLS certificate verification by @​jlowin in PrefectHQ/fastmcp#4369

Security 🔒

• fix(deps): clear Dependabot security alerts via lockfile bumps by @​jlowin in PrefectHQ/fastmcp#4393
• Clarify resource path parameter safety by @​jlowin in PrefectHQ/fastmcp#4398
• Fix dev apps launch escaping by @​jlowin in PrefectHQ/fastmcp#4399
• Block NAT64 SSRF bypass by @​jlowin in PrefectHQ/fastmcp#4400
• [codex] Fix event store replay isolation by @​jlowin in PrefectHQ/fastmcp#4402
• Fix DCR redirect URI validation by @​jlowin in PrefectHQ/fastmcp#4408
• Protect streamable HTTP from DNS rebinding by @​jlowin in PrefectHQ/fastmcp#4405
• Block unsafe OAuth redirect schemes by @​jlowin in PrefectHQ/fastmcp#4419
• Block IPv6 transition SSRF bypasses by @​jlowin in PrefectHQ/fastmcp#4426

Fixes 🐞

• fix: caching middleware TypeError on cache miss due to mismatched call_next parameter by @​gmenziesint in PrefectHQ/fastmcp#4301
• Fix: async rate limiting middleware get_client_id callbacks by @​Chotom in PrefectHQ/fastmcp#4319
• Recognize all GitHub issue-link forms in require-issue-link workflow by @​jlowin in PrefectHQ/fastmcp#4359
• fix: preserve required discriminator tags by @​he-yufeng in PrefectHQ/fastmcp#4297
• fix(proxy): shield stateful proxy disconnect during session teardown by @​jlowin in PrefectHQ/fastmcp#4363
• fix(fs): isolate same-named package imports across providers by @​jlowin in PrefectHQ/fastmcp#4361
• fix: StatefulProxyClient.clear() no longer causes KeyError on session teardown by @​tcconnally in PrefectHQ/fastmcp#4328
• fix: guard recursive refs in json_schema_to_type by @​Epochex in PrefectHQ/fastmcp#4312
• Forward IdP auth errors to MCP client instead of showing HTML error page by @​bobbyjames839 in PrefectHQ/fastmcp#4293

... (truncated)

Changelog

Sourced from fastmcp's changelog.

---

title: "Changelog" icon: "list-check" rss: true tag: NEW

v3.4.4: Host in Translation

FastMCP 3.4.4 restores HTTP deployment compatibility after the 3.4.3 Host/Origin guard changed default behavior for existing ASGI, serverless, and reverse-proxy deployments. The guard implementation remains available for deployments that opt in with explicit trusted hosts and origins, while 3.x returns to accepting traffic that worked before the patch. This release also adds Hugging Face OAuth provider support, with docs and examples for public and private apps, PKCE, Dynamic Client Registration, and CIMD.

Enhancements ✨

• Hugging Face Auth Integration by @​evalstate in #4385

Fixes 🐞

• Relax host origin guard defaults by @​jlowin in #4439
• Restore HTTP host guard compatibility by @​jlowin in #4472

New Contributors

• @​evalstate made their first contribution in #4385

Full Changelog: v3.4.3...v3.4.4

v3.4.3: The Fast and the Secure-ious

FastMCP 3.4.3 closes out a month of SSRF and OAuth hardening: NAT64, 6to4, Teredo, and ISATAP transition addresses can no longer smuggle private IPv4 targets past the SSRF allow-list, Streamable HTTP now validates Host and Origin before session handling to block DNS rebinding against localhost-bound servers, and OAuth redirect validation rejects unsafe schemes and unregistered DCR redirect URIs. Alongside the security work, this release also fixes proxy session teardown races, discriminator-tag handling in JSON schema conversion, and several smaller reliability issues.

Enhancements ✨

• Dedupe discriminator-required helper across schema converters by @​jlowin in #4362
• Add real Monty sandbox e2e coverage for CodeMode call_tool by @​AlexlaGuardia in #4274
• Switch prettier hook to rbubley/mirrors-prettier by @​jlowin in #4366
• feat(remote): add --verify flag for TLS certificate verification by @​jlowin in #4369

Security 🔒

• fix(deps): clear Dependabot security alerts via lockfile bumps by @​jlowin in #4393
• Clarify resource path parameter safety by @​jlowin in #4398
• Fix dev apps launch escaping by @​jlowin in #4399
• Block NAT64 SSRF bypass by @​jlowin in #4400
• [codex] Fix event store replay isolation by @​jlowin in #4402
• Fix DCR redirect URI validation by @​jlowin in #4408
• Protect streamable HTTP from DNS rebinding by @​jlowin in #4405
• Block unsafe OAuth redirect schemes by @​jlowin in #4419
• Block IPv6 transition SSRF bypasses by @​jlowin in #4426

Fixes 🐞

• fix: caching middleware TypeError on cache miss due to mismatched call_next parameter by @​gmenziesint in #4301
• Fix: async rate limiting middleware get_client_id callbacks by @​Chotom in #4319

... (truncated)

Commits

• 9138d40 Docs: add v3.4.4 changelog entries (#4473)
• d929882 Hugging Face Auth Integration (#4385)
• 5fe4fae Restore HTTP host guard compatibility (#4472)
• 400db61 Relax host origin guard defaults (#4439)
• 1eedd1f Docs: add v3.4.2 and v3.4.3 changelog entries (#4430)
• 3b1afe6 chore(deps): bump joserfc from 1.6.7 to 1.6.8 in the uv group across 1 direct...
• 874425a chore: Update SDK documentation (#4427)
• 691766b [codex] Fix OpenAPI resource template requests (#4407)
• 47907e0 Fix ty 0.0.55 diagnostics and prefab-ui protocol version drift (#4428)
• c1b0396 Block IPv6 transition SSRF bypasses (#4426)
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[github-actions]

Coverage Report •

File	Stmts	Miss	Cover	Missing
TOTAL	1726	147	91%

report-only-changed-files is enabled. No files were changed during this commit :)

Tests	Skipped	Failures	Errors	Time
244	1 💤	0 ❌	0 🔥	12.190s ⏱️

[dependabot]

Looks like these dependencies are no longer updatable, so this is no longer needed.