deps(python): bump the python-minor-and-patch group across 2 directories with 3 updates

[dependabot]

Bumps the python-minor-and-patch group with 2 updates in the / directory: uvicorn and mcp.
Bumps the python-minor-and-patch group with 1 update in the /.github directory: ruff.

Updates uvicorn from 0.52.1 to 0.53.0

Release notes

Sourced from uvicorn's releases.

Version 0.53.0

🌐 Opt-in HTTP/2 support

uvicorn 0.53.0 adds experimental HTTP/2 through zttp, alongside a new zuvloop integration and connection-handling improvements.

uv add uvicorn==0.53.0

• Serve HTTP/1.1 and HTTP/2 with zttp (#2982, #3101). Install zttp, then enable HTTP/2 with --http zttp --http2. Uvicorn negotiates HTTP/2 over TLS with ALPN and supports cleartext prior knowledge.
• HTTP/2 remains experimental. Upgrade-based h2c and WebSockets over HTTP/2 are not supported.

⚙️ More event loop choice

• Run Uvicorn with zuvloop (#3104). Install zuvloop separately and select it explicitly with --loop zuvloop on CPython 3.14 or newer.

🛡️ More reliable connections and proxies

• Honor Connection: close token lists (#3103). Uvicorn now parses comma-separated tokens case-insensitively across HTTP implementations.
• Trust IPv6 loopback proxies by default (#3119). The default FORWARDED_ALLOW_IPS value now includes ::1.
• Keep upgraded WebSockets alive (#3107). Uvicorn cancels the HTTP keep-alive timer when the connection becomes a WebSocket.

Full changelog: 0.52.4...0.53.0

Version 0.52.4

Fixed

• Remove duplicate Date headers from accepted WebSocket handshakes with websockets-sansio (#3078)

Full Changelog: Kludex/uvicorn@0.52.3...0.52.4

Version 0.52.3

Changed

• Update zttp to 0.0.24 and use its combined receive path, improving HTTP/1.1 request parsing performance (#3067)

Full Changelog: Kludex/uvicorn@0.52.2...0.52.3

Version 0.52.2

Fixed

• Update zttp to 0.0.22, fixing bodyless request receives and improving HTTP/1 request parsing performance (#3063)

Full Changelog: Kludex/uvicorn@0.52.1...0.52.2

Changelog

Sourced from uvicorn's changelog.

0.53.0 (September 14, 2026)

This release adds experimental HTTP/2 support through zttp. Enable it with --http zttp --http2. Upgrade-based h2c and WebSockets over HTTP/2 are not supported.

Added

• Add experimental HTTP/2 support through zttp (#2982, #3101)
• Add support for zuvloop (#3104)

Fixed

• Handle comma-separated, case-insensitive Connection: close tokens across HTTP implementations (#3103)
• Trust IPv6 loopback in the default FORWARDED_ALLOW_IPS value (#3119)
• Cancel the HTTP keep-alive timer when upgrading to WebSocket (#3107)

0.52.4 (August 18, 2026)

Fixed

• Remove duplicate Date headers from accepted WebSocket handshakes with websockets-sansio (#3078)

0.52.3 (August 13, 2026)

Changed

• Update zttp to 0.0.24 and use its combined receive path, improving HTTP/1.1 request parsing performance (#3067)

0.52.2 (August 13, 2026)

Fixed

• Update zttp to 0.0.22, fixing bodyless request receives and improving HTTP/1 request parsing performance (#3063)

Commits

• 421708f Version 0.53.0 (#3136)
• f1a1bff Unset the keep-alive timer when upgrading to WebSocket (#3107)
• 63971ed Document HTTP/2 support (#3130)
• 7d1a005 Remove race from multiprocess health check test (#3128)
• 5ac6265 Add ::1 to FORWARDED_ALLOW_IPS (#3119)
• 098b206 Remove timing race from SIGHUP supervisor test (#3127)
• 968f15e chore(deps): bump the github-actions group with 4 updates (#3113)
• 7d4c08c chore(deps): bump the python-packages group across 1 directory with 11 update...
• fe528a4 Require explicit opt-in for zttp HTTP/2 (#3101)
• fa324a4 chore(deps-dev): bump httpx2 from 2.10.0 to 2.12.0 (#3121)
• Additional commits viewable in compare view

Updates mcp from 2.0.0 to 2.2.0

Release notes

Sourced from mcp's releases.

v2.2.0

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

A few defaults changed in this release. If you run a server or client on 2.x, skim these first:

Behaviour changes

HTTP client redirects are only followed within the endpoint's origin (#3397)

• Client("https://..."), streamable_http_client and sse_client follow a redirect only if it stays on the same scheme, host and port (or upgrades http to https on the same host).
• A redirect anywhere else is not followed: the call fails with MCPError and the session stays usable (an SSE connect fails with httpx2.HTTPStatusError). If that other URL is the server you meant, use it as the endpoint URL.
• The follow_redirects setting on an httpx2.AsyncClient you pass in is no longer used for MCP requests, so you don't need it for the trailing-slash redirect any more.
• The OAuth providers apply the same rule to their own requests.

Idle Streamable HTTP sessions now expire (legacy <=2025-11-25 spec( (#3395)

• A stateful session with nothing in flight for 30 minutes is closed. The client's next request gets a 404 and it has to initialize again.
• Clients that keep the GET stream open (the SDK's Client does) are not affected. Neither are stateless servers or 2026-07-28 connections.
• A server also holds at most 10 000 sessions at once; beyond that, new sessions get a 503.
• To turn either off: mcp.run(transport="streamable-http", session_idle_timeout=None, max_sessions=None) (also on streamable_http_app() and run_streamable_http_async()).

The OAuth client checks the authorization server's issuer on the legacy path too (#3398)

• For servers without protected resource metadata, authorization server metadata whose issuer isn't the server's own origin is now rejected with OAuthFlowError: Authorization server metadata issuer mismatch. The protected-resource-metadata path has done this since 2.0.
• A 403 that isn't an insufficient_scope challenge is returned to the caller instead of retried.
• If protected resource metadata can't be fetched because of a 5xx/429, the flow now stops instead of falling back to the legacy endpoints.

Two new MCPDeprecationWarnings (#3435, #3447)

• ClientCredentialsOAuthProvider / PrivateKeyJWTOAuthProvider without issuer=. Pass your authorization server's issuer URL; 3.0 will require it.
• AuthSettings with resource_server_url set but validate_token_resource unset. Set it to True or False; 3.0 defaults it to True.
• Both keep working as before in 2.x; this mostly matters if your tests turn warnings into errors.

New

• AuthSettings.validate_token_resource: only accept tokens your TokenVerifier reports as issued for this server (#3447).
• issuer= on ClientCredentialsOAuthProvider and PrivateKeyJWTOAuthProvider (#3398).
• session_idle_timeout= and max_sessions= on the Streamable HTTP server entry points (#3395).

Fixes

• A client DELETE frees its session immediately, and a refused opening request no longer leaves a session behind (#2455, #3228, #3300).
• $refs in a tool's outputSchema resolve within that schema only; an unresolvable one surfaces as RuntimeError: Invalid schema for tool ... (#3394).

Known gaps

The tasks extension (SEP-2663), DPoP (SEP-1932) and the jwt-bearer grant are not implemented yet; https://github.com/modelcontextprotocol/python-sdk/blob/main/ROADMAP.md tracks them.

What's Changed

• Gate draft PRs too and rewrite the auto-close comment by @​maxisbey in modelcontextprotocol/python-sdk#3378
• Resolve tool output-schema references within the schema document only by @​maxisbey in modelcontextprotocol/python-sdk#3394
• Expire idle Streamable HTTP sessions by default and cap concurrent sessions by @​maxisbey in modelcontextprotocol/python-sdk#3395
• Validate the authorization server metadata issuer on every discovery path by @​maxisbey in modelcontextprotocol/python-sdk#3398

... (truncated)

Commits

• 9972c21 Replace RootModel wrappers with type aliases and TypeAdapter validation (#3470)
• fd66270 docs: refresh translations, and translate pages in parallel (#3458)
• 08a3bc8 docs: ask for AI disclosure on comments too (#3459)
• 7bb486a docs: stop presenting the in-memory client as the way to connect (#3443)
• 0c91368 Add AuthSettings.validate_token_resource to check a bearer token's resource (...
• 9771e6b Keep following a relative redirect when the endpoint URL carries userinfo (#3...
• a925e55 Bump the locked versions of eight dev and test dependencies (#3449)
• e8b9486 Bump pymdown-extensions from 11.0 to 11.0.1 (#3285)
• c6762e8 Follow redirects only within the MCP endpoint's origin (#3397)
• 5fd3abc Skip automatic docs previews for fork PRs and drop the setup-uv retry steps (...
• Additional commits viewable in compare view

Updates ruff from 0.16.1 to 0.16.8

Release notes

Sourced from ruff's releases.

0.16.8

Release Notes

Released on 2026-09-16.

Bug fixes

• Visit functional TypedDict keyword arguments correctly (#28584)
• [flake8-simplify] Detect nested async with under sync parent (SIM117) (#27821)
• [flake8-simplify] Preserve operand order in SIM109 fix (#27824)
• [pyupgrade] Preserve required parentheses in multiline UP040 fixes (#28164)
• [pyupgrade] Skip TypeVarTuple and ParamSpec conversions with bounds or constraints (UP040, UP046, UP047) (#28505)

Rule changes

• Add support for __lazy_modules__ (#28459)
• Recognize PEP-728 TypedDict class keywords (#28533)
• Recognize quoted types in typing.TypeForm (#28507)
• Support conditional assignment to __lazy_modules__ (#28491)
• [flake8-type-checking] Prefer lazy imports over TYPE_CHECKING on Python 3.15 and later (TC001, TC002, TC003) (#28541)
• [pyupgrade] Make the fix for UP040 always unsafe (#28526)
• [pyupgrade] Stop recommending deprecated ByteString aliases (UP035) (#28498)
• [ruff, flake8-use-pathlib] Recognize the parent_mode argument (RUF064, PTH103) (#28528)
• [ruff] Detect \Z in pytest.raises() match patterns (RUF043) (#28598)

CLI

• Use rule name and code in formatter incompatibility warnings (#28571)

Configuration

• [flake8-tidy-imports] Add extend-banned-api (#28644)

Contributors

• @​VedantMadane
• @​alzeph
• @​charliermarsh
• @​fredrikblau
• @​ntBre
• @​zsol
• @​Aniket-a14
• @​r-b-1

Install ruff 0.16.8

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ruff/releases/download/0.16.8/ruff-installer.sh | sh
</tr></table> 

... (truncated)

Changelog

Sourced from ruff's changelog.

0.16.8

Released on 2026-09-16.

Bug fixes

• Visit functional TypedDict keyword arguments correctly (#28584)
• [flake8-simplify] Detect nested async with under sync parent (SIM117) (#27821)
• [flake8-simplify] Preserve operand order in SIM109 fix (#27824)
• [pyupgrade] Preserve required parentheses in multiline UP040 fixes (#28164)
• [pyupgrade] Skip TypeVarTuple and ParamSpec conversions with bounds or constraints (UP040, UP046, UP047) (#28505)

Rule changes

• Add support for __lazy_modules__ (#28459)
• Recognize PEP-728 TypedDict class keywords (#28533)
• Recognize quoted types in typing.TypeForm (#28507)
• Support conditional assignment to __lazy_modules__ (#28491)
• [flake8-type-checking] Prefer lazy imports over TYPE_CHECKING on Python 3.15 and later (TC001, TC002, TC003) (#28541)
• [pyupgrade] Make the fix for UP040 always unsafe (#28526)
• [pyupgrade] Stop recommending deprecated ByteString aliases (UP035) (#28498)
• [ruff, flake8-use-pathlib] Recognize the parent_mode argument (RUF064, PTH103) (#28528)
• [ruff] Detect \Z in pytest.raises() match patterns (RUF043) (#28598)

CLI

• Use rule name and code in formatter incompatibility warnings (#28571)

Configuration

• [flake8-tidy-imports] Add extend-banned-api (#28644)

Contributors

• @​VedantMadane
• @​alzeph
• @​charliermarsh
• @​fredrikblau
• @​ntBre
• @​zsol
• @​Aniket-a14
• @​r-b-1

0.16.7

Released on 2026-09-10.

Preview features

• [ruff] Add rule for default values on method receivers (RUF077) (#26700)

... (truncated)

Commits

• 62914c4 Bump version to 0.16.8 (#28648)
• c47e0cd [ty] Bound aliased intersection expansion during inference (#28546)
• ff4747b renovate: update uv hashes correctly with setup-uv (#28621)
• 94efeaa [ty] Compact reachable binding and declaration histories (#28349)
• 50020fb [ty] Avoid storing constraint nodes twice (#28375)
• 446bb68 [ty] Compare bound-method receivers before signatures (#28384)
• 304ab86 [flake8-type-checking] Prefer lazy imports over TYPE_CHECKING on 3.15+ (`...
• d940b24 [ty] Watch script dependencies in CLI watch mode (#28125)
• fe9f065 [flake8-tidy-imports] Add extend-banned-api (#28644)
• 31131db [ty] Support type[A & B] (#27124)
• Additional commits viewable in compare view

[dependabot]

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