v2.0.0a2

What's Changed

Core PySR / Backend

• Automated update to backend: v2.0.0-alpha.9 by @github-actions[bot] in #1132
• fix: torch export with constant arguments by @MilesCranmer in #1058
• fix: normalize DataFrame column spaces in predict by @MilesCranmerBot in #1136
• feat: raise friendly error when loss_function has elementwise signature by @MilesCranmerBot in #1138
• fix: warn on elementwise loss probe mismatch by @MilesCranmerBot in #1184

Backend changes from SymbolicRegression.jl v2.0.0-alpha.8 to v2.0.0-alpha.9

PySR v2.0.0a2 updates the Julia backend from SymbolicRegression.jl v2.0.0-alpha.8 to v2.0.0-alpha.9.

Backend release: https://github.com/MilesCranmer/SymbolicRegression.jl/releases/tag/v2.0.0-alpha.9

Full backend changelog: astroautomata/SymbolicRegression.jl@v2.0.0-alpha.8...v2.0.0-alpha.9

Backend functionality and compatibility

• merge: integrate PR #515 changes by @MilesCranmerBot in astroautomata/SymbolicRegression.jl#540
• Add SymbolicUtils v4 compatibility by @MilesCranmerBot in astroautomata/SymbolicRegression.jl#542
• Restore accidentally dropped Enzyme mention in docs by @wsmoses in astroautomata/SymbolicRegression.jl#537
• ci: allow-fail enzyme integration group by @MilesCranmerBot in astroautomata/SymbolicRegression.jl#544

Backend tests and CI

• Refactor test suite into projects by @MilesCranmer in astroautomata/SymbolicRegression.jl#524
• test: split up mlj/templates by @MilesCranmer in astroautomata/SymbolicRegression.jl#525
• style: update to formatter version 2 by @MilesCranmer in astroautomata/SymbolicRegression.jl#504
• chore(deps): bump actions/setup-node from 4 to 5 by @dependabot[bot] in astroautomata/SymbolicRegression.jl#503
• chore(deps): bump actions/setup-node from 5 to 6 by @dependabot[bot] in astroautomata/SymbolicRegression.jl#516
• chore(deps): bump actions/upload-artifact from 4 to 5 by @dependabot[bot] in astroautomata/SymbolicRegression.jl#519
• chore(deps): bump actions/download-artifact from 5 to 6 by @dependabot[bot] in astroautomata/SymbolicRegression.jl#520
• chore(deps): bump actions/cache from 4 to 5 by @dependabot[bot] in astroautomata/SymbolicRegression.jl#529

Backend documentation

• docs: add language picker by @MilesCranmer in astroautomata/SymbolicRegression.jl#512
• docs: generate favicon from logo by @MilesCranmer in astroautomata/SymbolicRegression.jl#513

Backend new contributors

• @MilesCranmerBot made their first contribution in astroautomata/SymbolicRegression.jl#540

Packaging / Release / Dependencies

• chore(deps): allow pandas <4.0.0 by @MilesCranmerBot in #1129
• ci: add release-please bootstrap for master by @MilesCranmerBot in #1162
• ci: publish PyPI from release-please on master by @MilesCranmerBot in #1169
• fix: keep release-please manifest on released prerelease by @MilesCranmerBot in #1185
• chore: prepare PySR 2.0.0a2 release by @MilesCranmer in #1189

CI / Testing / Automation

• Create slurm unit tests + refactor to docker buildx bake by @MilesCranmer in #1111
• ci: fix upper bound python for jax compat by @MilesCranmer in #1112
• ci: avoid dependabot-only failures in conda/docker by @MilesCranmerBot in #1130
• Make backend-update PR branches version-specific by @MilesCranmerBot in #1155
• fix: trigger CI for backend update PRs by @MilesCranmerBot in #1158
• ci: fix backend bump automation by @MilesCranmerBot in #1166

Documentation / Website / Papers

• Switch docs to vitepress by @MilesCranmer in #1056
• Paper PR workflow: sync/resize images to PySR_Docs by @MilesCranmerBot in #1118
• ci(papers): PNG output + alpha flatten + ~300KB target by @MilesCranmerBot in #1119
• fix(ci): paper-image bot updates PR comment + stable URLs by @MilesCranmerBot in #1120
• fix: relax papers.yml validator for PySR_Docs image URLs by @MilesCranmerBot in #1122
• Adding a recently published paper that used PySR by @paulomontero in #1098
• Add paper: Learning Microstructure in Active Matter by @luna026 in #1107
• Added Symbolic Regression for lithium-ion battery paper information by @anubhavkamal in #1074
• Update papers.yml (duplicate of #1148) by @MilesCranmerBot in #1156
• Added a paper to the research showcase page by @MilesCranmerBot in #1172

Dependency / Workflow Maintenance

• chore(deps): bump actions/checkout from 4 to 6 by @dependabot[bot] in #1086
• chore(deps): bump peter-evans/create-pull-request from 7 to 8 by @dependabot[bot] in #1097
• chore(deps): bump actions/cache from 4 to 5 by @dependabot[bot] in #1099
• chore(deps): bump actions/setup-node from 4 to 6 by @dependabot[bot] in #1062
• chore(deps): bump docker/setup-qemu-action from 3 to 4 by @dependabot[bot] in #1147
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in #1039

New Contributors

• @paulomontero made their first contribution in #1098
• @luna026 made their first contribution in #1107
• @anubhavkamal made their first contribution in #1074

Full Changelog: v2.0.0a1...v2.0.0a2