[dependabot]

Bumps pyrefly from 0.61.1 to 1.3.1.

Release notes

Sourced from pyrefly's releases.

Pyrefly v1.3.1

Release date: September 14, 2026

Pyrefly v1.3.1 is a patch release with a single bug fix.

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🐛 Bug fixes

• #4909: Fixed a critical issue where Pyrefly would immediately crash on startup with a thread panic when empty or relative base paths were encountered during configuration. The server now safely resolves these paths against the working directory, preventing the crash and allowing normal operation.

Thank-you to all our contributors who found these bugs and reported them! Did you know this is one of the most helpful contributions you can make to an open-source project? If you find any bugs in Pyrefly we want to know about them! Please open a bug report issue here.

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📦 Upgrade

pip install --upgrade pyrefly==1.3.1

How to safely upgrade your codebase

Upgrading the version of Pyrefly you're using or a third-party library you depend on can reveal new type errors in your code. Fixing them all at once is often unrealistic. We've written scripts to help you temporarily silence them. After upgrading, follow these steps:

1. pyrefly check --suppress-errors
2. Run your code formatter of choice
3. pyrefly check --remove-unused-ignores
4. Repeat until you achieve a clean formatting run and a clean type check.

This will add # pyrefly: ignore comments to your code, enabling you to silence errors and return to fix them later. This can make the process of upgrading a large codebase much more manageable.

Read more about error suppressions in the Pyrefly documentation.

Pyrefly v1.3.0

Release date: September 10, 2026

Pyrefly v1.3.0 bundles 934 commits from 71 contributors.

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🔍Release Highlights

Type Checking

• New diagnostics and more accurate type inference. Pyrefly now catches invalid literal regular expressions, invalid mock.patch targets, unsupported dataclass_transform arguments, incompatible Protocol.__call__ overrides, and unimplemented abstract methods. Pattern-match exhaustiveness, overload resolution, narrowing, and generic inference are also more accurate.
• Better support for major Python frameworks. Pyrefly understands same-file Django reverse relationships, checks SQLAlchemy updates against model fields, and recognizes attributes registered on PyTorch modules.

Language Server

... (truncated)

Commits

• 3e3177d cut 1.3.1
• 3445714 release notes for v1.3.1
• c1be891 fix pyrefly instantly dies with with thread panic #4909 (#4925)
• 624bdc4 cut 1.3.0
• ad6958c feat: support Pyrefly-specific type ignore codes
• f1d8f62 Bump fast-uri from 3.1.5 to 3.1.7 in /website (#4789)
• cb178b9 add type stubs for remaining jax.lax APIs (#4875)
• 8ee41ca Model polars join(..., coalesce=...) (#4833) (#4859)
• 5d00010 Find methods and other nested definitions in workspace symbols
• 5b392ca Cache flat symbols for first-party modules
• Additional commits viewable in compare view

Note
Automatic rebases have been disabled on this pull request as it has been open for over 30 days.

[amit-gazal-band]

🔍 Reviewed by the dependabot-triage skill — not approved, left open.

This PR's own CI is RED (lint job fails). Confirmed independently: with ruff pinned at 0.15.11 (current), this repo's [tool.ruff.lint] config (extend-select = ["PLC0415"] on top of ruff's default E4/E7/E9/F) reports 0 findings; with pyrefly bumped nothing here changes ruff's behavior, but pulling ruff 0.16.6 in the same batch (see #613's comment) independently surfaced 1459 new findings against the same config — so a pyrefly-focused fix isn't enough on its own; whatever's driving #499's own lint failure needs isolating first.

Filed as a follow-up: see the linked Linear issue. Leaving this PR open (not closed, no ignore entry) as the tracked reminder.

[AlexanderZ-Band]

@dependabot rebase

[dependabot]

Superseded by #739.