Releases: astral-sh/ty
Releases · astral-sh/ty
0.0.33
Immutable
release. Only release title and notes can be modified.
Release Notes
Released on 2026-04-28.
Notable changes
-
ty now prefers the declared type of an annotated assignment in more situations (#24802).
Consider this example:from some_library import untyped_function threshold: int | None = 0 result: str = untyped_function()
ty previously favored the inferred type of the right hand side expression when
thresholdandresultwere used. This is useful forthreshold, as it allows something likethreshold += 1to work without an error: we know thatthresholdcould later becomeNone, but right now, we see that it is anint. However, forresult, the inferred type isUnknown. This is not a useful type and it can lead to false negatives. Starting with this release, ty will therefore prefer
the declared type if the inferred and declared types are mutually assignable. In the above example,thresholdwill still be inferred asint(or ratherLiteral[1]), butresultwill now be inferred asstr. If you previously addedcasts to work around this behavior, you should be able to remove them after upgrading.
Bug fixes
- Fix reporting of annotation-only locals as unused (#24811)
- Fix project and workspace selection (#24824)
- Fix go-to definition for generic classes (#24714)
- Fix receiver coloring for aliased decorators (#24884)
LSP server
- Add support for go-to definition in literal enum member inlay hints (#24792)
- Add support for "baking" keyword argument inlay hints into the source code (#24667)
- Don't allow inlay hint edits when introducing a non global scope symbol (#24797)
- Omit semantic highlighting for unresolved symbols (#24718)
Core type checking
- Support narrowing with aliased conditional expressions (#24302)
- Model short-circuiting control flow in Boolean expressions (#24458)
- Handle
finallyblocks where alltry/exceptblocks are terminal (#24882) - Detect invalid
ClassVarvs instance-attribute overrides (#24767) - Emit diagnostic for invalid uses of
Unpack[...](#24868) - Infer lambda parameter types with
Callabletype context (#24317) - Support
**unpacking ofTypedDictin dict-literal assignments (#24703) - Support
Unpack[TypedDict]in**kwargssignatures (#24653) - Treat
[*xs]as an irrefutable pattern when matching onSequence(#24787) - Improve generics solving for unions in invariant positions (#24698)
- Improve generics solving for unions when matching against protocols (#24837)
Diagnostics
- Add error context to
invalid-return-typediagnostics,invalid-yielddiagnostics, attribute assignment diagnostics (#24770, #24771) - Add error context for invalid TypedDict assignments (#24790)
- Add error context for invalid intersection type assignments (#24772)
- Improve TypedDict to
dictassignment error diagnostics (#24768) - Add contextual secondary annotations in more places (#24696)
- Include full type in
invalid-keydiagnostics for unions of TypedDicts (#24693) - Emit more specific diagnostics for "possibly unbound" errors from context manager dunder methods invoked on a union. (#24662)
- Remove duplicate
invalid-type-formdiagnostics for PEP-613 type alias values (#24760) - Improve diagnostics for implicit calls to a possibly unbound unary operator (#24816)
- Improve diagnostics for possibly-unbound errors from implicit dunder calls on unions (#24676)
Performance
- Optimize signature checking based on number of arguments (#24674)
- Defer union of parameter types (#24756)
- Skip checks for gradual vararg calls (#24748)
Other changes
- Fix notifications about watched changes for entities outside any workspace (#24775)
Contributors
- @MatthewMckee4
- @lerebear
- @tonyxwz
- @sharkdp
- @felixscherz
- @MichaReiser
- @tamird
- @ibraheemdev
- @AlexWaygood
- @denyszhak
- @charliermarsh
- @mtshiba
- @EliteTK
- @carljm
Install ty 0.0.33
Install prebuilt binaries via shell script
curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ty/releases/download/0.0.33/ty-installer.sh | shInstall prebuilt binaries via powershell script
powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ty/releases/download/0.0.33/ty-installer.ps1 | iex"Download ty 0.0.33
| File | Platform | Checksum |
|---|---|---|
| ty-aarch64-apple-darwin.tar.gz | Apple Silicon macOS | checksum |
| ty-x86_64-apple-darwin.tar.gz | Intel macOS | checksum |
| ty-aarch64-pc-windows-msvc.zip | ARM64 Windows | checksum |
| ty-i686-pc-windows-msvc.zip | x86 Windows | checksum |
| ty-x86_64-pc-windows-msvc.zip | x64 Windows | checksum |
| ty-aarch64-unknown-linux-gnu.tar.gz | ARM64 Linux | checksum |
| ty-i686-unknown-linux-gnu.tar.gz | x86 Linux | checksum |
| ty-powerpc64-unknown-linux-gnu.tar.gz | PPC64 Linux | checksum |
| ty-powerpc64le-unknown-linux-gnu.tar.gz | PPC64LE Linux | checksum |
| ty-s390x-unknown-linux-gnu.tar.gz | S390x Linux | checksum |
| ty-x86_64-unknown-linux-gnu.tar.gz | x64 Linux | checksum |
| ty-armv7-unknown-linux-gnueabihf.tar.gz | ARMv7 Linux | checksum |
| ty-aarch64-unknown-linux-musl.tar.gz | ARM64 MU... |
0.0.32
Immutable
release. Only release title and notes can be modified.
Release Notes
Released on 2026-04-20.
Bug fixes
- Fix panic when
__get__usesConcatenateself-type and wraps a__call__(#24692) - Avoid panicking on overloaded
Callabletype context (#24661) - Expand class bases in per-base lint checks (#24695, #24699)
- Fix stack overflow for binary operator inference involving recursive types (#24551)
LSP server
- Dim out unreachable code in IDEs (#24580)
- Do not suggest argument completion when typing the value of a keyword argument (#24669)
- Retrieve the docstring from the overload implementation if an
@overload-decorated function has no docstring (#23920)
Core type checking
- Allow
ifstatements in TypedDict bodies (#24702) - Disallow
@disjoint_baseon TypedDicts and Protocols (#24671) - Do not consider a subclass of a
@dataclass_transform-decorated class to have dataclass-like semantics if it hastypein its MRO (#24679) - Reject using properties with
Neversetters or deleters (#24510) - Sync vendored typeshed stubs (#24646). Typeshed diff
Diagnostics
- Show error context for assignability diagnostics (#24309)
- Use partially qualified names when reporting diagnostics regarding bad calls to methods (#24560)
- Reduce source code context window to zero (#24689)
- Merge same-file annotations if there is only a single line separating them (#24694)
Performance
Contributors
- @JelleZijlstra
- @kc0506
- @denyszhak
- @carljm
- @dcreager
- @AlexWaygood
- @dylwil3
- @charliermarsh
- @sharkdp
- @ibraheemdev
Install ty 0.0.32
Install prebuilt binaries via shell script
curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ty/releases/download/0.0.32/ty-installer.sh | shInstall prebuilt binaries via powershell script
powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ty/releases/download/0.0.32/ty-installer.ps1 | iex"Download ty 0.0.32
Verifying GitHub Artifact Attestations
The artifacts in this release have attestations generated with GitHub Artifact Attestations. These can be verified by using the GitHub CLI:
gh attestation verify <file-path of downloaded artifact> --repo astral-sh/tyYou can also download the attestation from GitHub and verify against that directly:
gh attestation verify <file-path of downloaded artifact> --bundle <file-path of downloaded attestation>0.0.31
Immutable
release. Only release title and notes can be modified.
Release Notes
Released on 2026-04-15.
Bug fixes
- Avoid panic from double inference for
namedtuple(typename=T, field_names=x, **{})(#24641) - Avoid panic from double inference with missing functional
Enum(...)names (#24638) - Avoid panic from double inference with functional
Enum(value=...)(#24639) - Fix cases where
invalid-keyfix doesn't converge, andoverride-of-final-methodproduces invalid syntax (#24649) - Fix unnecessary
ty:ignorecomments inserted by--add-ignorefor diagnostics starting on the same line (#24651)
CLI
- Add
--fixmode to enable auto-fix for diagnostics (#24097)
Performance
- Avoid excessive memory usage for dataclasses with many fields (#24620)
Core type checking
- Check inherited
NamedTuplefield conflicts (#24542) - Error when duplicate keywords are provided to TypedDict constructors (#24449)
- Respect mixed positional and keyword arguments in TypedDict constructor (#24448)
- Respect subclass shadowing for inherited NamedTuple fields (#24640)
- Skip
EnumMeta.__call__for enum constructor signatures (#24513)
Contributors
Install ty 0.0.31
Install prebuilt binaries via shell script
curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ty/releases/download/0.0.31/ty-installer.sh | shInstall prebuilt binaries via powershell script
powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ty/releases/download/0.0.31/ty-installer.ps1 | iex"Download ty 0.0.31
Verifying GitHub Artifact Attestations
The artifacts in this release have attestations generated with GitHub Artifact Attestations. These can be verified by using the GitHub CLI:
gh attestation verify <file-path of downloaded artifact> --repo astral-sh/tyYou can also download the attestation from GitHub and verify against that directly:
gh attestation verify <file-path of downloaded artifact> --bundle <file-path of downloaded attestation>0.0.30
Immutable
release. Only release title and notes can be modified.
Release Notes
Released on 2026-04-13.
As of v0.0.30, ty no longer unions Unknown into most inferred types of unannotated attributes. For example:
class Foo:
def __init__(self) -> None:
self.value = 1
reveal_type(Foo().value) # revealed: int
Foo().value = "x" # error: [invalid-assignment]In previous versions, reveal_type(Foo().value) would have included Unknown, so the assignment to "x" would not have been flagged. Since this can affect inferred attribute types throughout a codebase, upgrading may lead to both new and resolved diagnostics. Initializers of None and other non-literal singleton types remain exceptions. See #24531 for details.
Bug fixes
- Disallow bare
ParamSpecinConcatenateprefixes (#24474) - Ensure '/' parameter appears before '*' when rendering
Callabletypes (#24497) - Ensure nested conditional blocks inherit
TYPE_CHECKINGstate from outer blocks (#24470) - Fix bad diagnostic range for incorrect implicit
__init_subclass__calls (#24541) - Fix incorrect assignability of
type[T]to a metaclass (#24515) - Fix stack overflows from recursive types (#24413)
- Server: fix signature help for
ParamSpec-specialized class calls (#24399) - Use
TypedDictfield types as type context to inform the inference of arguments passed toTypedDictconstructors (#24422)
LSP server
- Adjust semantic tokens implementation to ensure that type alias values have "type form" syntax highlighting in IDEs (#24478)
- Completions: rank symbols from
typingandcollectionshigher than third party re-exports (#23643) - Ignore unsupported editor-selected Python versions (#24498)
- Improve
TypedDictconstructor support in the LSP by synthesizing__init__(#24476, #24522, #24535) - Return all attribute definitions for goto definition, rather than just the last definition in the given scope (#24332)
- Show
infosubdiagnostics in LSP diagnostic messages (#24328) - Use the context of the kind of object a parameter is expected to receive to inform syntax highlighting of arguments passed to call expressions (#23949)
Diagnostics
- Hide "Rule xyz is enabled"-style hints unless verbose mode was specified (#24469)
- Improve consistency of pedantic lints complaining about badly named types (#24575)
- Point to the first reachable declaration, rather than the first declaration, in declaration-based diagnostics (#24564)
Core type checking
- Add support for functional
Enum(...)syntax (#23602, #24570, #24571) - Allow
Finalvariable assignments in__post_init__(#24529) - Allow partially stringified
type[...]annotations, e.g.type["MyClass"](#24518) - Emit a diagnostic when attempting to inherit from a class with
__init_subclass__ = None(#24543) - Fix
TypeGuardandTypeIsnarrowing for unbound method calls (#24612) - Fix assignability of intersections with bounded TypeVars (#24502)
- Fix excess subscript argument inference for non-generic types so that
list[int][0]leads to 1 diagnostic, rather than 2 (#24354) - Inherit
dataclass_transformmetadata from metaclass bases (#24615) - Lazily evaluate declaration reachability in field and enum filters (#24451)
- Normalize explicit
Noneaccessors in manual property construction (#24492) - Reject deleting
Finalattributes (#24508) - Respect non-required keys in
TypedDictunpacking (#24446) - Respect property deleters in attribute deletion checks (#24500)
- Stop special-casing
strconstructor (#24514) - Stop unioning
Unknowninto types of un-annotated attributes (#24531) - Support
super()in metaclass methods (#24483) - Tighten up a few edge cases in
Concatenatetype-expression parsing (#24172) - Use basic blocks for determining if a node is in an
if TYPE_CHECKINGblock (#24394)
Contributors
- @charliermarsh
- @Glyphack
- @MichaReiser
- @sharkdp
- @carljm
- @YilunAllenChen
- @zanieb
- @AlexWaygood
- @thejchap
Install ty 0.0.30
Install prebuilt binaries via shell script
curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ty/releases/download/0.0.30/ty-installer.sh | shInstall prebuilt binaries via powershell script
powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ty/releases/download/0.0.30/ty-installer.ps1 | iex"Download ty 0.0.30
| File | Platform | Checksum |
|---|---|---|
| ty-aarch64-apple-darwin.tar.gz | Apple Silicon macOS | checksum |
| ty-x86_64-apple-darwin.tar.gz | Intel macOS | checksum |
| ty-aarch64-pc-windows-msvc.zip | ARM64 Windows | checksum |
| ty-i686-pc-windows-msvc.zip | x86 Windows | checksum |
| ty-x86_64-pc-windows-msvc.zip | x64 Windows | checksum |
| ty-aarch64-unknown-linux-gnu.tar.gz | ARM64 Linux | checksum |
| ty-i686-unknown-linux-gnu.tar.gz | x86 Linux | checksum |
| ty-powerpc64-unknown-linux-gnu.tar.gz | PPC64 Linux | checksum |
| ty-powerpc64le-unknown-linux-gnu.tar.gz | PPC64LE Linux | checksum |
| ty-s390x-unknown-linux-gnu.tar.gz | S390x Linux | checksum |
| ty-x86_64-unknown-linux-gnu.tar.gz | x64 Linux | checksum |
| ty-armv7-unknown-linux-gnueabihf.tar.gz | ARMv7 Linux | checksum |
| [ty-aarch64-unknown-linux-musl.tar.gz](https://releases.astral.sh/github/ty/releases/download/0.0.30/t... |
0.0.29
Immutable
release. Only release title and notes can be modified.
Release Notes
Released on 2026-04-05.
Bug fixes
- Avoid special-casing for
dataclasses.fieldif it's not infield_specifiers(#24397) - Reject unsupported
environment.python-versionvalues in configuration files (#24402) - Respect supported lower bounds from
requires-python(#24401)
Core type checking
- Add support for
types.new_class(#23144) - Fix PEP 695 type aliases in
withstatement (#24395) - Respect
__new__and metaclass__call__return types (#24357) - Treat enum attributes with type annotations as members (#23776)
Contributors
Install ty 0.0.29
Install prebuilt binaries via shell script
curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ty/releases/download/0.0.29/ty-installer.sh | shInstall prebuilt binaries via powershell script
powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ty/releases/download/0.0.29/ty-installer.ps1 | iex"Download ty 0.0.29
Verifying GitHub Artifact Attestations
The artifacts in this release have attestations generated with GitHub Artifact Attestations. These can be verified by using the GitHub CLI:
gh attestation verify <file-path of downloaded artifact> --repo astral-sh/tyYou can also download the attestation from GitHub and verify against that directly:
gh attestation verify <file-path of downloaded artifact> --bundle <file-path of downloaded attestation>0.0.28
Immutable
release. Only release title and notes can be modified.
Release Notes
Released on 2026-04-02.
Bug fixes
- Mark loop header assignments as used to avoid false positives in "unused variable" diagnostics (#24336)
LSP server
- Show constructor signature of classes when hovering over them (#24257)
Core type checking
- Avoid emitting cascading diagnostics when parsing invalid type expressions (#24326)
- Handle most "deep" mutual TypeVar constraints (#24079)
- Improve consistency and quality of diagnostics relating to invalid type forms (#24325)
- Improve robustness of various type-qualifier-related checks (#24251)
- Infer the
extra_itemskeyword argument to class-based TypedDicts as an annotation expression (#24362) - Use bidirectional inference to fix false positives on operations such as
x: list[int | None] = [None] * 2(#24197) - Sync vendored typeshed stubs (#24340). Typeshed diff
- Tighten up validation of subscripts and attributes in type expressions (#24329)
- Use
infer_type_expressionfor parsing parameter annotations and return-type annotations (#24353) - Use
infer_type_expressionfor validating PEP-613 type aliases (#24370) - Validate TypedDict fields when subclassing (#24338)
- Validate type qualifiers in functional TypedDict fields and the
extra_itemskeyword to functional TypedDicts (#24360) - Improve diagnostics for invalid functional
TypedDicts (#24345)
Contributors
Install ty 0.0.28
Install prebuilt binaries via shell script
curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ty/releases/download/0.0.28/ty-installer.sh | shInstall prebuilt binaries via powershell script
powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ty/releases/download/0.0.28/ty-installer.ps1 | iex"Download ty 0.0.28
Verifying GitHub Artifact Attestations
The artifacts in this release have attestations generated with GitHub Artifact Attestations. These can be verified by using the GitHub CLI:
gh attestation verify <file-path of downloaded artifact> --repo astral-sh/tyYou can also download the attestation from GitHub and verify against that directly:
gh attestation verify <file-path of downloaded artifact> --bundle <file-path of downloaded attestation>0.0.27
Immutable
release. Only release title and notes can be modified.
Release Notes
Released on 2026-03-31.
Bug fixes
- Fix panic on debug builds when attempting to provide autocomplete suggestions for
list[int]<CURSOR>()(#24167) - Fix instance-attribute lookup in methods of protocol classes (#24213)
- Fix nested global and nonlocal lookups through forwarding scopes (#24279)
- Fix panic on
list[Annotated[()]](#24303) - Fix stack overflow on
type A = TypeIs[Callable[[], A]](#24245) - Use
_clsas the name of the first argument for synthesizedcollections.namedtupleconstructor methods (#24333)
LSP server
- Fix semantic token classification for properties accessed on instances (#24065)
- Grey out unused bindings in the editor (#23305)
Core type checking
- Add bidirectional type context for TypedDict
get()defaults (#24231) - Add bidirectional type context for TypedDict
pop()defaults (#24229) - Add support for functional TypedDict (#24174, #24331, #24295)
- Ban type qualifiers in PEP-695 type aliases (#24242)
- Enforce
Finalattribute assignment rules for annotated and augmented writes (#23880) - Improve support for
Callabletype context (#23888) - Infer lambda expressions with
Callabletype context (#22633) - Don't incorrectly infer the type of a method as being a singleton type when it's accessed off an instance (#24039)
- Propagate type context through
awaitexpressions (#24256) - Resolve union-likes in emitting union attribute errors (#24263)
- Show the user where the variable was declared as
Finalwhen emitting a diagnostic about aFinalvariable being reassigned (#24194)
Contributors
Install ty 0.0.27
Install prebuilt binaries via shell script
curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ty/releases/download/0.0.27/ty-installer.sh | shInstall prebuilt binaries via powershell script
powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ty/releases/download/0.0.27/ty-installer.ps1 | iex"Download ty 0.0.27
Verifying GitHub Artifact Attestations
The artifacts in this release have attestations generated with GitHub Artifact Attestations. These can be verified by using the GitHub CLI:
gh attestation verify <file-path of downloaded artifact> --repo astral-sh/tyYou can also download the attestation from GitHub and verify against that directly:
gh attestation verify <file-path of downloaded artifact> --bundle <file-path of downloaded attestation>0.0.26
Immutable
release. Only release title and notes can be modified.
Release Notes
Released on 2026-03-26.
Bug fixes
- Prevent "too many cycle iteration" panics in more situations (#24061)
- Fix false positives and false negatives when unpacking a union of tuples into a function call (#23298)
Core type checking
- Add support for
typing.Concatenate(#23689) - Validate the return type of generator functions (#24026)
- Support dataclass field
converters (#23088) - Disallow
Selfin metaclass and static methods (#23231) - Improve call inference for keyword-only
dict()(#24103) - Respect non-explicitly defined
dataclass_transformparams (#24170) - Unconditionally silence diagnostics in unreachable code (#24179)
- Respect terminal-function-call narrowing in global scope (#23245)
Performance
- Fix performance regression for narrowing on a larger
Literaltype(#24185)
Contributors
Install ty 0.0.26
Install prebuilt binaries via shell script
curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ty/releases/download/0.0.26/ty-installer.sh | shInstall prebuilt binaries via powershell script
powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ty/releases/download/0.0.26/ty-installer.ps1 | iex"Download ty 0.0.26
Verifying GitHub Artifact Attestations
The artifacts in this release have attestations generated with GitHub Artifact Attestations. These can be verified by using the GitHub CLI:
gh attestation verify <file-path of downloaded artifact> --repo astral-sh/tyYou can also download the attestation from GitHub and verify against that directly:
gh attestation verify <file-path of downloaded artifact> --bundle <file-path of downloaded attestation>0.0.25
Immutable
release. Only release title and notes can be modified.
Release Notes
Released on 2026-03-24.
Breaking changes
- Support
type:ignore[ty:code]suppressions (#24096)
Bug fixes
- Avoid eager TypedDict diagnostics in
TypedDict | dictunions (#24151) - Fix Salsa panic propagation (#24141)
- Fix folding ranges of comments separated by statements (#24132)
- Fix loop-header reachability cycles in conditional unpacking (#24006)
- Fix subtyping of intersections containing
NewTypes of unions vs. unions (#24087) - Fix untracked reads in Salsa queries that can lead to backdating panics (#24051)
- Prevent tainted loop bindings in cycle normalization (#24143)
- Simplify an intersection of
N & ~TtoNeverifB & ~Twould simplify toNever, whereBis the concrete base type of aNewTypeN(#24086)
LSP
- Preserve blank lines between comments and imports in add-import action (#24066)
Type checking
- Add diagnostic hint for invalid assignments involving invariant generics (#24032)
- Add precisely-typed overloads for
TypedDictupdate (#24101) - Disallow read-only fields in
TypedDictupdates (#24128) - Expand bounded typevars to their upper bounds when evaluating truthiness comparisons between intersections and literal types (#24082)
- Emit
reveal_typediagnostics in unreachable code (#24070) - Improve
isinstance()reachability analysis (#24077) - Improve keyword argument narrowing for nested dictionaries (#24010)
- Infer
yieldexpression types (#23796) - Reduce diagnostic range for
invalid-metaclass(#24145) - Support narrowing for extended walrus targets (#24129)
- Unions/intersections of gradual types should be assignable to
Never(#24056)
Contributors
Install ty 0.0.25
Install prebuilt binaries via shell script
curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ty/releases/download/0.0.25/ty-installer.sh | shInstall prebuilt binaries via powershell script
powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ty/releases/download/0.0.25/ty-installer.ps1 | iex"Download ty 0.0.25
Verifying GitHub Artifact Attestations
The artifacts in this release have attestations generated with GitHub Artifact Attestations. These can be verified by using the GitHub CLI:
gh attestation verify <file-path of downloaded artifact> --repo astral-sh/tyYou can also download the attestation from GitHub and verify against that directly:
gh attestation verify <file-path of downloaded artifact> --bundle <file-path of downloaded attestation>0.0.24
Immutable
release. Only release title and notes can be modified.
Release Notes
Released on 2026-03-19.
Bug fixes
- Ensure
TypedDictsubscripts for unknown keys returnUnknown(#23926) - Fix overflow with recursive
TypeIs(#23784) - Fix variance of frozen dataclass-transform models (#23931)
LSP server
- Improve semantic token classification for attribute access on union types (#23841)
Core type checking
- Improve performance and correctness by avoiding inferring intersection types for call arguments as a result of bidirectional inference (#23933)
- Narrow keyword arguments when unpacking dictionary instances (#23436)
- Discover
/usr/local/libdist-packages on Debian/Ubuntu (#23797) - Sync vendored typeshed stubs (#23963). Typeshed diff
Install ty 0.0.24
Install prebuilt binaries via shell script
curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ty/releases/download/0.0.24/ty-installer.sh | shInstall prebuilt binaries via powershell script
powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ty/releases/download/0.0.24/ty-installer.ps1 | iex"Download ty 0.0.24
Verifying GitHub Artifact Attestations
The artifacts in this release have attestations generated with GitHub Artifact Attestations. These can be verified by using the GitHub CLI:
gh attestation verify <file-path of downloaded artifact> --repo astral-sh/tyYou can also download the attestation from GitHub and verify against that directly:
gh attestation verify <file-path of downloaded artifact> --bundle <file-path of downloaded attestation>