## What's Changed * fix: compat with python 3.8 by removing beartype by @MilesCranmer in https://github.com/MilesCranmer/PySR/pull/935 * ci: update workflows to test 3.13 by @MilesCranmer in https://github.com/MilesCranmer/PySR/pull/929 * style: fix newline in warning by @MilesCranmer in https://github.com/MilesCranmer/PySR/pull/931 * ci: switch to codecov by @MilesCranmer in https://github.com/MilesCranmer/PySR/pull/932 * deps: fix local conda env versions by @MilesCranmer in https://github.com/MilesCranmer/PySR/pull/933 **Full Changelog**: https://github.com/MilesCranmer/PySR/compare/v1.5.7...v1.5.8

## What's Changed * Enable negative losses by @MilesCranmer in https://github.com/MilesCranmer/PySR/pull/928 * Recommend TemplateExpressionSpec over ParametricExpressionSpec @MilesCranmer in https://github.com/MilesCranmer/PySR/pull/920 * Fix multi-output template expressions by @MilesCranmer in https://github.com/MilesCranmer/PySR/pull/921 * build: switch to hatchling by @MilesCranmer in https://github.com/MilesCranmer/PySR/pull/888 * chore(deps): bump juliacall from 0.9.24 to 0.9.25 by @dependabot in https://github.com/MilesCranmer/PySR/pull/925 * fix: turn off double warning for ParametricExpressionSpec by @MilesCranmer in https://github.com/MilesCranmer/PySR/pull/930 **Full Changelog**: https://github.com/MilesCranmer/PySR/compare/v1.5.6...v1.5.7

## What's Changed * Added paper contribution and image by @manuel-morales-a in https://github.com/MilesCranmer/PySR/pull/824 * fix: pickling of inv by @MilesCranmer in https://github.com/MilesCranmer/PySR/pull/910 * Automated update to backend: v1.10.0 by @github-actions in https://github.com/MilesCranmer/PySR/pull/890 ## New Contributors * @manuel-morales-a made their first contribution in https://github.com/MilesCranmer/PySR/pull/824 **Full Changelog**: https://github.com/MilesCranmer/PySR/compare/v1.5.5...v1.5.6

## What's Changed * fix: typing extensions dependency by @MilesCranmer in https://github.com/MilesCranmer/PySR/pull/885 **Full Changelog**: https://github.com/MilesCranmer/PySR/compare/v1.5.4...v1.5.5

## What's Changed * Compat with older Python by @MilesCranmer in https://github.com/MilesCranmer/PySR/pull/884 **Full Changelog**: https://github.com/MilesCranmer/PySR/compare/v1.5.3...v1.5.4

## What's Changed * fix: change sympy mappings ordering by @romanovzky in https://github.com/MilesCranmer/PySR/pull/868 ## New Contributors * @romanovzky made their first contribution in https://github.com/MilesCranmer/PySR/pull/868 **Full Changelog**: https://github.com/MilesCranmer/PySR/compare/v1.5.2...v1.5.3

## What's Changed * fix: mapping of cbrt by @MilesCranmer in https://github.com/MilesCranmer/PySR/pull/858 **Full Changelog**: https://github.com/MilesCranmer/PySR/compare/v1.5.1...v1.5.2

## What's Changed * fix: comparison operator parsing by @MilesCranmer in https://github.com/MilesCranmer/PySR/pull/845 **Full Changelog**: https://github.com/MilesCranmer/PySR/compare/v1.5.0...v1.5.1