⬆️🐍 Update dependency ty to v0.0.26

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
ty (changelog)	==0.0.24 → ==0.0.26

---

Release Notes

astral-sh/ty (ty)

v0.0.26

Compare Source

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 Self in metaclass and static methods (#​23231)
• Improve call inference for keyword-only dict() (#​24103)
• Respect non-explicitly defined dataclass_transform params (#​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 Literal type(#​24185)

Contributors

• @​sharkdp
• @​Glyphack
• @​charliermarsh
• @​mtshiba
• @​dhruvmanila
• @​carljm
• @​choucavalier

v0.0.25

Compare Source

Released on 2026-03-24.

Breaking changes

• Support type:ignore[ty:code] suppressions (#​24096)

Bug fixes

• Avoid eager TypedDict diagnostics in TypedDict | dict unions (#​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 & ~T to Never if B & ~T would simplify to Never, where B is the concrete base type of a NewType N (#​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 TypedDict update (#​24101)
• Disallow read-only fields in TypedDict updates (#​24128)
• Expand bounded typevars to their upper bounds when evaluating truthiness comparisons between intersections and literal types (#​24082)
• Emit reveal_type diagnostics in unreachable code (#​24070)
• Improve isinstance() reachability analysis (#​24077)
• Improve keyword argument narrowing for nested dictionaries (#​24010)
• Infer yield expression 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

• @​MichaReiser
• @​AlexWaygood
• @​Glyphack
• @​sharkdp
• @​ibraheemdev
• @​charliermarsh
• @​mvanhorn
• @​carljm

---

Configuration

📅 Schedule: Branch creation - "every weekend" (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.