Update pysr requirement from <=1.5.10,>=1.5.0 to >=1.5.0,<=2.2.1

[dependabot]

Updates the requirements on pysr to permit the latest version.

Release notes

Sourced from pysr's releases.

v2.2.1

2.2.1 (2026-09-02)

Bug Fixes

• require juliacall 0.9.29+ and Python 3.10+ (#1335) (b87067a)

Changelog

Sourced from pysr's changelog.

2.2.1 (2026-09-02)

Bug Fixes

• require juliacall 0.9.29+ and Python 3.10+ (#1335) (b87067a)

2.2.0 (2026-09-02)

Features

• release the GIL during the search (#1330) (b15bf62)
• stop searches gracefully on Windows interrupts (#1329) (e180079)

Documentation

• correct AdaptiveMutationWeightsPlugin default state (#1332) (9909624)
• update the stable redirect on every release (#1328) (82c5d70)

2.1.0 (2026-08-29)

Features

• stop autoloading the juliacall IPython extension by default (#1325) (b3f91a1)
• stop searches gracefully on interrupt instead of killing the kernel (#1310) (5bd53f6)

Documentation

• add two research showcase papers (#1323) (7727b01)
• update SKILL.md to v2 (#1321) (d64ef62)

2.0.0 (2026-08-25)

PySR 2.0.0 brings a two-year transformation of the library into the Python API, moving from a fixed scalar-tree search interface to a modular PyTorch-like framework for symbolic learning while keeping the familiar v1 estimator workflow. Operators can take any number of arguments, TypeSpec supports user-defined value types, and mutations, crossovers, and the search loop are configurable objects. Guesses mix expressions into populations throughout a run, which helps connect PySR to agentic coding loops. Automatic batching and a reusable backend evaluation buffer make large searches faster with less configuration.

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Highlights

Operators with any number of arguments

operators takes an arity-keyed dict, so ternary operators like clamp, fma, and muladd, along with max/min over three or more arguments, are searchable (#999). Before v2 you had to fake clamp(x0*x1, -1, 1) as a tall nest of binary operators, which the search rarely found and never found cheaply. binary_operators and unary_operators still work, and they are mutually exclusive with operators.

from pysr import PySRRegressor
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... (truncated)

Commits

• f8ffb0e chore(master): release 2.2.1 (#1341)
• b87067a fix: require juliacall 0.9.29+ and Python 3.10+ (#1335)
• 65b887a chore(master): release 2.2.0 (#1333)
• e180079 feat: stop searches gracefully on Windows interrupts (#1329)
• b15bf62 feat: release the GIL during the search (#1330)
• 82c5d70 docs: update the stable redirect on every release (#1328)
• 11b9815 test: give the multithreaded type spec search enough budget (#1331)
• 9909624 docs: correct AdaptiveMutationWeightsPlugin default state (#1332)
• 493c7f6 chore: group Dependabot npm version updates (#1320)
• 4f59582 chore(master): release 2.1.0 (#1322)
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[dependabot]

Superseded by #67.