deps: bump the python-deps group across 1 directory with 9 updates

[dependabot]

Bumps the python-deps group with 9 updates in the / directory:

Package	From	To
prompt-toolkit	3.0.52	3.0.53
tree-sitter-language-pack	1.12.2	1.20.0
mcp	2.0.0	2.2.0
pygments	2.20.0	2.21.0
sounddevice	0.5.5	0.5.6
ruff	0.15.20	0.16.10
mypy	1.19.1	2.4.0
types-pyyaml	6.0.12.20250516	6.0.12.20260906
uvicorn	0.49.0	0.54.0

Updates prompt-toolkit from 3.0.52 to 3.0.53

Release notes

Sourced from prompt-toolkit's releases.

3.0.53

Fixes:

• Fix get_word_before_cursor behavior.
• Fix vt100 6x6x6 color cube range and missing grayscale shades (232, 254-255).
• Treat OSError on add_reader as EOFError (macOS kqueue).
• Handle surrogate pairs in FileHistory.store_string.
• Fix FuzzyWordCompleter meta_dict type hint to match WordCompleter.
• Handle ascii decode errors in terminal type decoding of telnet protocol. (thanks: @​SunandM)
• Update return types of dialog shortcuts to include None when cancelled.
• Set missing minimal requirement on wcwidth.

New features:

• Lazy load __version__.
• Allow to specify show_numbers in ChoiceInput.

Added support for Python 3.14, 3.15, and set minimum Python version to 3.10.

Changelog

Sourced from prompt-toolkit's changelog.

3.0.53: 2026-07-26

Fixes:

• Fix get_word_before_cursor behavior.
• Fix vt100 6x6x6 color cube range and missing grayscale shades (232, 254-255).
• Treat OSError on add_reader as EOFError (macOS kqueue).
• Handle surrogate pairs in FileHistory.store_string.
• Fix FuzzyWordCompleter meta_dict type hint to match WordCompleter.
• Handle ascii decode errors in terminal type decoding of telnet protocol.
• Update return types of dialog shortcuts to include None when cancelled.
• Set missing minimal requirement on wcwidth.

New features:

• Lazy load __version__.
• Allow to specify show_numbers in ChoiceInput.

Added support for Python 3.14, 3.15, and set minimum Python version to 3.10.

Commits

• 583b341 Release 3.0.53
• b6fc80c Fix some incorrect rst markups (#2074)
• f4a5a80 Update return types of dialog shortcuts to include None when cancelled
• c6c8930 Handle ascii decode errors in terminal type decoding of telnet protocol. (#2080)
• 25ff042 Typing fix in breakpointhook.
• 236bfb7 Allow to specify show_numbers in ChoiceInput (#2059)
• 8f3212d Fix FuzzyWordCompleter meta_dict type hint to match WordCompleter (#2070)
• 42f2251 Fix: handle surrogate pairs in FileHistory.store_string (#2062)
• 9146317 Fix typo (#2064)
• 1041a42 fix(vt100): treat OSError on add_reader as EOFError (macOS kqueue) (#2065)
• Additional commits viewable in compare view

Updates tree-sitter-language-pack from 1.12.2 to 1.20.0

Release notes

Sourced from tree-sitter-language-pack's releases.

Release v1.20.0

What's Changed

• fix(intel): Swift and TypeScript declarations, configuration DataNode paths by @​robertsfeir in xberg-io/tree-sitter-language-pack#186
• feat: restore Rust extension ambiguity lookup by @​Goldziher in xberg-io/tree-sitter-language-pack#187
• chore(release): prepare 1.17.0 by @​Goldziher in xberg-io/tree-sitter-language-pack#188
• feat(intel): SQL, Justfile, Dockerfile, C, Cedar, dotenv and plist declarations by @​robertsfeir in xberg-io/tree-sitter-language-pack#190

Full Changelog: xberg-io/tree-sitter-language-pack@v1.16.0...v1.20.0

Release v1.19.1

What's Changed

• fix(intel): Swift and TypeScript declarations, configuration DataNode paths by @​robertsfeir in xberg-io/tree-sitter-language-pack#186
• feat: restore Rust extension ambiguity lookup by @​Goldziher in xberg-io/tree-sitter-language-pack#187
• chore(release): prepare 1.17.0 by @​Goldziher in xberg-io/tree-sitter-language-pack#188
• feat(intel): SQL, Justfile, Dockerfile, C, Cedar, dotenv and plist declarations by @​robertsfeir in xberg-io/tree-sitter-language-pack#190

Full Changelog: xberg-io/tree-sitter-language-pack@v1.16.0...v1.19.1

Release v1.19.0

Changed

• Upgraded the tree-sitter runtime to 0.27, moving tree-sitter-language to 0.1.8 in the same step. The two pins are not independent: 0.27 requires tree-sitter-language ^0.1.8, and 0.1.8 relocates the 0.26 WASM shims under wasm/unsupported/ so they no longer compile against the older runtime. The grammar ABI is unchanged -- both 0.26 and 0.27 are TREE_SITTER_LANGUAGE_VERSION 15 with a minimum compatible version of 13 -- so every bundled grammar loads exactly as before and no regeneration is implied.
• Consumers that also depend on tree-sitter directly must move to 0.27 in the same step. The tree-sitter crate declares links = "tree-sitter", and Cargo permits only one package per links value in a dependency graph, so pairing this release with a 0.26 pin fails to resolve rather than failing to compile. Nothing this crate exports changed: the requirement is a dependency floor, not a break in its own API.
• Grammar scanners now compile with NDEBUG on wasm32. 0.27's WASM libc is a documented subset that excludes assert, so a scanner keeping its assertions emitted an unresolved __assert_fail. That became an env module import rather than a link error, and the package then failed to load at runtime with Cannot find module 'env'. Native builds keep their assertions.
• Dropped this crate's own WASM libc shims (memchr, strcmp, iswalnum and friends) now that 0.27 defines them. Keeping both made the two definitions collide at link time, which broke the WASM package under the split-codegen-unit settings the release build uses.
• Replaced the 0.26 WASM integration, which used a separate non-thread-safe allocator and an incomplete libc. 0.27 supplies its own WASM libc and forwards C allocation to the Rust application's global allocator.

Fixed

• Swift binaries again link a single tree-sitter C runtime. SwiftPM builds tree-sitter 0.25.10 for SwiftTreeSitter as loose object files, while this package's Rust staticlib carries the 0.27 runtime in one archive member. Archive members load only to resolve an undefined symbol, and

... (truncated)

Changelog

Sourced from tree-sitter-language-pack's changelog.

[1.20.0] - 2026-09-14

Changed

• BREAKING (Java): enum constants are now UPPER_SNAKE_CASE. StructureKind.Function becomes StructureKind.FUNCTION, and likewise across CommentKind, DataNodeKind, DiagnosticSeverity, DocstringFormat, ExportKind and SymbolKind. The serialized wire values are unchanged, so no data migration is needed and persisted JSON stays readable; only Java source naming the old identifiers has to be updated.
• BREAKING (Swift): process() returns typed value types instead of opaque Rust handles. ProcessResult, StructureItem, DataNode and fifteen other types are now Codable structs with stored properties rather than typealiases to swift-bridge handles. Field access moves from method to property syntax (result.structure, not result.structure()), collections are real Swift arrays, and StructureKind / SymbolKind / DocstringFormat are Swift enums with associated values rather than strings. Values now cross the bridge as JSON and are decoded in Swift, so process() is throws on malformed input rather than returning a handle that fails on first access.
• Regenerate all bindings, fixtures, documentation and release workflows with Alef 0.87.1 (was 0.85.15), lifting the hold recorded in 1.19.1. 0.86.1 promoted the Swift binding to value types but left the Swift e2e suite it generates calling the old method syntax; 0.87.0 fixed that but emitted enums whose Codable conformance could not read serde's wire format. Both are resolved in 0.87.1.

Added

• Swift structure-extraction test coverage. Every test in the Swift package suite previously read only scalar fields off process(), leaving the structure path unexercised — all seventeen passed against an Alef 0.87.0 build whose process() threw on any source containing structure. The new test asserts the decoded StructureKind cases and item names, which is what exercises the element decoder; nim cannot cover this (its grammar uses none of the node kind names structure_kind_at() matches) so it goes through mojo, already in the package's statically compiled language set.

Fixed

• Swift enums with associated values decode serde's externally tagged wire format. Unit variants serialize as a bare string ("Function") and payload variants as a single-keyed object ({"Other": "macro"}); the generated conformance previously fell through to Swift's synthesized Codable, which expects {"function": {}} and matched neither form. (Alef 0.87.1)
• Node and WebAssembly e2e suites read internally tagged FormatMetadata as the flattened shape serde actually emits, with the sibling-field form asserted directly so a regression to the nested form fails loudly instead of silently degrading to the variant name. (Alef 0.87.1)
• The Go binding pairs native error messages with their sentinels, so callers can match with errors.Is while still reading the detail the native layer produced. (Alef 0.87.1)

[1.19.1] - 2026-09-13

Changed

• Alef stays pinned at 0.85.15. 0.86.1 rewrites the Swift binding to real value types -- DataNode, ProcessResult and StructureItem become Codable structs with typed properties instead of typealiases to opaque Rust handles -- but does not update the Swift e2e suite it generates alongside them, which still calls result.language() and result.structure() on

... (truncated)

Commits

• f4b24ec chore(swift): update Package.swift with checksum for v1.20.0
• 5472338 chore(release): prepare 1.20.0 with alef 0.87.1
• 3b85261 test(swift): cover structure extraction via mojo
• 312106b fix(release): stage alef.toml in the zig hash refresh
• e12c872 chore(zig): refresh test_apps package hashes for v1.19.1
• 481753f fix(swift): include stddef.h for NULL in the RustBridgeC shim
• f5f9f78 fix(swift): re-stamp the RustBridge files alef owns
• e57a51f fix(swift): restore the alef stamps the swift-bridge build strips
• 1605195 fix(alef): hold the generator at 0.85.15 for 1.19.1
• f070230 chore(release): 1.19.1
• 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 pygments from 2.20.0 to 2.21.0

Release notes

Sourced from pygments's releases.

2.21.0

• New lexers:

  • BitBake (#3103)
  • Caddyfile (#3225)
  • CEL (#3048)
  • PureScript (#1077, #3054)

• Updated lexers:

  • Bash: Fix coloured keyword at the beginning of a name (#2926)
  • Boogie: Add missing Boogie and Civl Verifier keywords (#3156)
  • C#:
    • Recognize interpolated verbatim strings with either $@ or @$ prefixes (#2685)
    • Support dollar-prefixed and multi-quote raw strings (#3129, #2897)
    • Recognize union (#3182)
  • C/C++:
    • Add C23/C++26 attributes (#3084)
    • Add more C2Y keywords (#3092)
    • Highlight a function following a namespace body (#2928)
    • Fix C/C++ lexer support for multiline pre-processor comments (#3051)
    • Add .ipp as a file extension (#3141, #1008)
  • Clojure: Recognize named, octal and unicode character literals such as \space and \o377 as a single token (#979)
  • Csound: Add missing opcode parameter type letter (#3161)
  • CUDA: Derive from the C++ lexer instead of C to highlight C++ constructs such as template, class and namespace (#3127)
  • D: Allow non-ASCII (Unicode) identifiers (#1088)
  • Fish: Fix single quote backslash escape (#3138, #2821)
  • Go: Various lexer improvements (#3199)
  • GoogleSQL: Require a word break after SET (#3167)
  • Hexdump: Only match valid digits (#3200, #2847)
  • JavaScript: Highlight the arguments object (#3146)
  • Jsonnet: Recognize colons in array slice expressions (#2828)
  • JSX: Allow apostrophes in element text (#2816)
  • Julia: Fix rstrings backslash (#3140, #2537)
  • Kotlin: Support companion objects without an explicit name (#2525)
  • Kotlin: Don't let a nullable type marker (?) consume the following character, so Foo?, and a?:b tokenize correctly (#2964)
  • Kusto: Recognize member-access dots in dynamic objects (#2779)
  • Lua: Various improvements (#3143)
  • Macaulay2: Update symbols to 1.26.05 (#3120)
  • Markdown:
    • Highlight bold-italics (***...*** and ___...___) (#3067)
    • Fix mention regex to support hyphens in usernames (#3139, #3135)
  • Markdown, reStructuredText, TiddlyWiki5: Fix wrong token offsets for embedded code blocks (#3133)
  • Mathematica: Recognize \[Name] named-character escapes such as \[Nu] instead of emitting an Error token (#3097)

... (truncated)

Changelog

Sourced from pygments's changelog.

Version 2.21.0

(released August 17th, 2026)

• New lexers:

  • BitBake (#3103)
  • Caddyfile (#3225)
  • CEL (#3048)
  • PureScript (#1077, #3054)

• Updated lexers:

  • Bash: Fix coloured keyword at the beginning of a name (#2926)
  • Boogie: Add missing Boogie and Civl Verifier keywords (#3156)
  • C#:
    • Recognize interpolated verbatim strings with either $@ or @$ prefixes (#2685)
    • Support dollar-prefixed and multi-quote raw strings (#3129, #2897)
    • Recognize union (#3182)
  • C/C++:
    • Add C23/C++26 attributes (#3084)
    • Add more C2Y keywords (#3092)
    • Highlight a function following a namespace body (#2928)
    • Fix C/C++ lexer support for multiline pre-processor comments (#3051)
    • Add .ipp as a file extension (#3141, #1008)
  • Clojure: Recognize named, octal and unicode character literals such as \space and \o377 as a single token (#979)
  • Csound: Add missing opcode parameter type letter (#3161)
  • CUDA: Derive from the C++ lexer instead of C to highlight C++ constructs such as template, class and namespace (#3127)
  • D: Allow non-ASCII (Unicode) identifiers (#1088)
  • Fish: Fix single quote backslash escape (#3138, #2821)
  • Go: Various lexer improvements (#3199)
  • GoogleSQL: Require a word break after SET (#3167)
  • Hexdump: Only match valid digits (#3200, #2847)
  • JavaScript: Highlight the arguments object (#3146)
  • Jsonnet: Recognize colons in array slice expressions (#2828)
  • JSX: Allow apostrophes in element text (#2816)
  • Julia: Fix rstrings backslash (#3140, #2537)
  • Kotlin: Support companion objects without an explicit name (#2525)
  • Kotlin: Don't let a nullable type marker (?) consume the following character, so Foo?, and a?:b tokenize correctly (#2964)
  • Kusto: Recognize member-access dots in dynamic objects (#2779)
  • Lua: Various improvements (#3143)
  • Macaulay2: Update symbols to 1.26.05 (#3120)
  • Markdown:
    • Highlight bold-italics (***...*** and ___...___) (#3067)
    • Fix mention regex to support hyphens in usernames (#3139, #3135)
  • Markdown, reStructuredText, TiddlyWiki5: Fix wrong token offsets for

... (truncated)

Commits

• a43b45d Get ready for the 2.21.0 release.
• d8f14cb Fix version_added for Purescript.
• 19c5817 Remove superfluous parentheses from PostgresExplainLexer (#3232)
• 9992e09 Merge pull request #3191 from jvoisin/dupes
• bd22577 Fix regexlint warnings after latest update.
• 6a62df1 Release preparation: Update the changelog.
• aabba32 Merge pull request #3221 from jvoisin/alter
• d3441d0 Merge pull request #3225 from jvoisin/caddy
• c593f3f Add a lexer for Caddy
• 0644b53 Simplify single-character regex alternations to character classes
• Additional commits viewable in compare view

Updates sounddevice from 0.5.5 to 0.5.6

Release notes

Sourced from sounddevice's releases.

python-sounddevice 0.5.6

https://pypi.org/project/sounddevice/0.5.6/

• Fix architecture detection on Windows ARM64

Changelog

Sourced from sounddevice's changelog.

0.5.6 (2026-08-17):

• Fix architecture detection on Windows ARM64

Commits

• bd3f0df Release 0.5.6
• 9e55e73 Fix architecture detection on Windows ARM64 (#631)
• e8e7bef Bump actions/setup-python from 6 to 7
• dfa004d GitHub Actions: Upgrade from ubuntu-22.04 to ubuntu-24.04 (#634)
• 950d205 update link
• fd24bd3 Bump actions/checkout from 6 to 7
• 88de286 CI: bump Python versions
• 0f16231 Bump idna from 3.11 to 3.15 in the uv group across 1 directory
• 2634256 Bump urllib3 from 2.6.3 to 2.7.0 in the uv group across 1 directory
• 715d988 Bump actions/download-artifact from 7 to 8
• Additional commits viewable in compare view

Updates ruff from 0.15.20 to 0.16.10

Release notes

Sourced from ruff's releases.

0.16.10

Release Notes

Released on 2026-10-01.

Preview features

• Add a migration guide for categories (#28087)
• [pyupgrade] Add rule for context manager iterator annotations (UP052) (#29000)

Performance

• Reduce memory used by diagnostics (#28951)

Server

• Avoid running uv format in untrusted workspaces (#28873)

Documentation

• Fix links to moved changelog sections and renamed mdtests (#28941)
• Add Python 3.15 as a supported version (#28907)
• Add ty as a type checker example (#28906)

Other changes

• Update Rust toolchain to 1.99 and MSRV to 1.97 (#29047)

Contributors

• @​ntBre
• @​spaceone
• @​HardMax71
• @​charliermarsh

Install ruff 0.16.10

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ruff/releases/download/0.16.10/ruff-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ruff/releases/download/0.16.10/ruff-installer.ps1 | iex"

Download ruff 0.16.10

... (truncated)

Changelog

Sourced from ruff's changelog.

0.16.10

Released on 2026-10-01.

Preview features

• Add a migration guide for categories (#28087)
• [pyupgrade] Add rule for context manager iterator annotations (UP052) (#29000)

Performance

• Reduce memory used by diagnostics (#28951)

Server

• Avoid running uv format in untrusted workspaces (#28873)

Documentation

• Fix links to moved changelog sections and renamed mdtests (#28941)
• Add Python 3.15 as a supported version (#28907)
• Add ty as a type checker example (#28906)

Other changes

• Update Rust toolchain to 1.99 and MSRV to 1.97 (#29047)

Contributors

• @​ntBre
• @​spaceone
• @​HardMax71
• @​charliermarsh

0.16.9

Released on 2026-09-24.

Preview features

• [ruff] Avoid false positives for overloaded division (RUF069) (#28309)

Bug fixes

• [flake8-bugbear] Avoid false positives for calls with keyword arguments (B009, B010, B043) (#28776)
• [flake8-tidy-imports] Allow lazy imports to be used in deferred annotations (TID255) (#28767)

Rule changes

• Update LibCST-based fixes for Python 3.15 (#28616)

... (truncated)

Commits

• 3265ed1 Bump version to 0.16.10 (#29055)
• e786964 Authorize shared PR security-review workflow to publish findings (#29052)
• a81291e [ty] Defer uv workspace discovery until after project configuration (#28525)
• b6a74d2 [ty] Refresh uv project metadata when uv files change (#28529)
• 41d30df Update Rust toolchain to 1.99 and MSRV to 1.97 (#29047)
• 317e0a3 [ty] Bound nested callable signature display (#29049)
• 8546752 [ty] Fix member lookup on union-bounded type variables (#29018)
• 56180bc [ty] Specialize instance members once (#29043)
• aa9a1ff [ty] Avoid stale I/O diagnostics when closing deleted files (#28988)
• 2d25346 [ty] Improve unresolved-import documentation (#29039)
• Additional commits viewable in compare view

Updates mypy from 1.19.1 to 2.4.0

Changelog

Sourced from mypy's changelog.

Mypy Release Notes

Next Release

Mypy 2.4

We've just uploaded mypy 2.4.0 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.

Python 3.15 Support

Mypy 2.4 supports running on Python 3.15 and type checking most Python 3.15 features. This includes the new builtin sentinel type for sentinel values (PEP 661), which mypy now supports (see below for details). Lazy imports (PEP 810) and unpacking in comprehensions (PEP 798) are also supported. Closed TypedDicts (PEP 728) have been supported since mypy 2.2, but the extra_items TypedDict argument, also introduced in PEP 728, is still unsupported. Support for extra_items will be added in a future mypy release.

Native Parser Enabled by Default

Mypy now uses the new native parser by default. It's based on the Ruff parser, and it's significantly faster than the legacy parser, which uses the stdlib ast module. The native parser also has other benefits:

• You can target newer Python versions and use recent Python syntax even when running mypy on an older Python version. For example, you can use --python-version 3.15 when running mypy on Python 3.14.
• Stub files can use syntax that is newer than the target Python version. For example, stubs can use the PEP 695 generic class syntax (class Box[T]: ...) when running on or targeting Python 3.10.
• Parallel type checking requires the native parser.

The legacy parser is still available through --no-native-parser, or native_parser = False in the config file (native_parser = false under [tool.mypy] in pyproject.toml). We are planning to remove the legacy parser in early 2027. If you run into a problem with the native parser, please report it on the issue tracker.

Unlike the legacy parser, the native parser doesn't support type comments for variables defined by for and with statements. These type comments are silently ignored, and the types of the variables are

... (truncated)

Commits

• 935ba8a Bump version to 2.4.0
• 334a678 Add link for PR 22066 in mypy 2.4 changelog (#22082)
• fe69660 Finalize mypy 2.4 changelog (#22080)
• 541fd87 Various mypy 2.4 changelog updates (#22077)
• b231182 Update native parser docs (#22078)
• 04fe42c Initial Changelog for Mypy 2.4 (#22071)
• 0617494 Quick fix for non UTF-8 encodings with new parser (#22066)
• b2f9b60 Bump librt to 0.16.0 (#22067)
• 9d798dc Sync typeshed (#22054)
• 0861bb6 Reduce max protocol stack size to 20 (#22053)
• Additional commits viewable in compare view

Updates types-pyyaml from 6.0.12.20250516 to 6.0.12.20260906

Commits

• See full diff in compare view

Updates uvicorn from 0.49.0 to 0.54.0

Release notes

Sourced from uvicorn's releases.

Version 0.54.0

📨 Send metadata after the response body

uvicorn 0.54.0 adds response trailers and 103 Early Hints to its experimental HTTP/2 implementation through zttp.

uv add uvicorn==0.54.0 "zttp>=0.0.34"

• Send HTTP/2 response trailers (#3146). The ASGI http.response.trailers extension lets applications send metadata, such as checksums, after the response body. Clients must send TE: trailers to receive them. Multiple trailer messages are combined before completing the response.
• HTTP/2 remains experimental and opt-in. Enable it with --http zttp --http2. Upgrade-based h2c and WebSockets over HTTP/2 remain unsupported.

💡 Hint at resources before the final response

• Send 103 Early Hints over HTTP/2 (#3137). Applications can use the ASGI http.response.early_hint extension to send resource hints before the final response. Each supplied link becomes a separate Link header.

Full changelog: 0.53.0...0.54.0

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

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Changelog

Sourced from uvicorn's changelog.

0.54.0 (September 24, 2026)

HTTP/2 support remains experimental. Install zttp>=0.0.34 and enable it with --http zttp --http2.

Added

• Add HTTP/2 response trailers through the ASGI http.response.trailers extension. Clients must send TE: trailers to receive them (#3146)
• Add HTTP/2 103 Early Hints through the ASGI http.response.early_hint extension (#3137)

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)

0.52.1 (August 1, 2026)

Fixed

• Complete the closing handshake on server-initiated WebSocket closes in the websockets-sansio and wsproto implementations, waiting for the client's close reply with a 10 second timeout instead of resetting the connection (#3053)
• Add missing write flow control to the websockets-sansio implementation, preventing data truncation on server-initiated...

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