What's Changed Core PySR / Backend Automated update to backend: v2.0.0-alpha.9 by @github-actions[bot] in https://github.com/MilesCranmer/PySR/pull/1132 fix: torch export with constant arguments by @MilesCranmer in https://github.com/MilesCranmer/PySR/pull/1058 fix: normalize DataFrame column spaces in predict by @MilesCranmerBot in https://github.com/MilesCranmer/PySR/pull/1136 feat: raise friendly error when loss_function has elementwise signature by @MilesCranmerBot in https://github.com/MilesCranmer/PySR/pull/1138 fix: warn on elementwise loss probe mismatch by @MilesCranmerBot in https://github.com/MilesCranmer/PySR/pull/1184 <details> <summary>Backend changes from SymbolicRegression.jl v2.0.0-alpha.8 to v2.0.0-alpha.9</summary> 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: https://github.com/MilesCranmer/SymbolicRegression.jl/compare/v2.0.0-alpha.8...v2.0.0-alpha.9 Backend functionality and compatibility merge: integrate PR #515 changes by @MilesCranmerBot in https://github.com/MilesCranmer/SymbolicRegression.jl/pull/540 Add SymbolicUtils v4 compatibility by @MilesCranmerBot in https://github.com/MilesCranmer/SymbolicRegression.jl/pull/542 Restore accidentally dropped Enzyme mention in docs by @wsmoses in https://github.com/MilesCranmer/SymbolicRegression.jl/pull/537 ci: allow-fail enzyme integration group by @MilesCranmerBot in https://github.com/MilesCranmer/SymbolicRegression.jl/pull/544 Backend tests and CI Refactor test suite into projects by @MilesCranmer in https://github.com/MilesCranmer/SymbolicRegression.jl/pull/524 test: split up mlj/templates by @MilesCranmer in https://github.com/MilesCranmer/SymbolicRegression.jl/pull/525 style: update to formatter version 2 by @MilesCranmer in https://github.com/MilesCranmer/SymbolicRegression.jl/pull/504 chore(deps): bump actions/setup-node from 4 to 5 by @dependabot[bot] in https://github.com/MilesCranmer/SymbolicRegression.jl/pull/503 chore(deps): bump actions/setup-node from 5 to 6 by @dependabot[bot] in https://github.com/MilesCranmer/SymbolicRegression.jl/pull/516 chore(deps): bump actions/upload-artifact from 4 to 5 by @dependabot[bot] in https://github.com/MilesCranmer/SymbolicRegression.jl/pull/519 chore(deps): bump actions/download-artifact from 5 to 6 by @dependabot[bot] in https://github.com/MilesCranmer/SymbolicRegression.jl/pull/520 chore(deps): bump actions/cache from 4 to 5 by @dependabot[bot] in https://github.com/MilesCranmer/SymbolicRegression.jl/pull/529 Backend documentation docs: add language picker by @MilesCranmer in https://github.com/MilesCranmer/SymbolicRegression.jl/pull/512 docs: generate favicon from logo by @MilesCranmer in https://github.com/MilesCranmer/SymbolicRegression.jl/pull/513 Backend new contributors @MilesCranmerBot made their first contribution in https://github.com/MilesCranmer/SymbolicRegression.jl/pull/540 </details> Packaging / Release / Dependencies chore(deps): allow pandas <4.0.0 by @MilesCranmerBot in https://github.com/MilesCranmer/PySR/pull/1129 ci: add release-please bootstrap for master by @MilesCranmerBot in https://github.com/MilesCranmer/PySR/pull/1162 ci: publish PyPI from release-please on master by @MilesCranmerBot in https://github.com/MilesCranmer/PySR/pull/1169 fix: keep release-please manifest on released prerelease by @MilesCranmerBot in https://github.com/MilesCranmer/PySR/pull/1185 chore: prepare PySR 2.0.0a2 release by @MilesCranmer in https://github.com/MilesCranmer/PySR/pull/1189 CI / Testing / Automation Create slurm unit tests + refactor to docker buildx bake by @MilesCranmer in https://github.com/MilesCranmer/PySR/pull/1111 ci: fix upper bound python for jax compat by @MilesCranmer in https://github.com/MilesCranmer/PySR/pull/1112 ci: avoid dependabot-only failures in conda/docker by @MilesCranmerBot in https://github.com/MilesCranmer/PySR/pull/1130 Make backend-update PR branches version-specific by @MilesCranmerBot in https://github.com/MilesCranmer/PySR/pull/1155 fix: trigger CI for backend update PRs by @MilesCranmerBot in https://github.com/MilesCranmer/PySR/pull/1158 ci: fix backend bump automation by @MilesCranmerBot in https://github.com/MilesCranmer/PySR/pull/1166 Documentation / Website / Papers Switch docs to vitepress by @MilesCranmer in https://github.com/MilesCranmer/PySR/pull/1056 Paper PR workflow: sync/resize images to PySR_Docs by @MilesCranmerBot in https://github.com/MilesCranmer/PySR/pull/1118 ci(papers): PNG output + alpha flatten + ~300KB target by @MilesCranmerBot in https://github.com/MilesCranmer/PySR/pull/1119 fix(ci): paper-image bot updates PR comment + stable URLs by @MilesCranmerBot in https://github.com/MilesCranmer/PySR/pull/1120 fix: relax papers.yml validator for PySR_Docs image URLs by @MilesCranmerBot in https://github.com/MilesCranmer/PySR/pull/1122 Adding a recently published paper that used PySR by @paulomontero in https://github.com/MilesCranmer/PySR/pull/1098 Add paper: Learning Microstructure in Active Matter by @luna026 in https://github.com/MilesCranmer/PySR/pull/1107 Added Symbolic Regression for lithium-ion battery paper information by @anubhavkamal in https://github.com/MilesCranmer/PySR/pull/1074 Update papers.yml (duplicate of #1148) by @MilesCranmerBot in https://github.com/MilesCranmer/PySR/pull/1156 Added a paper to the research showcase page by @MilesCranmerBot in https://github.com/MilesCranmer/PySR/pull/1172 Dependency / Workflow Maintenance chore(deps): bump actions/checkout from 4 to 6 by @dependabot[bot] in https://github.com/MilesCranmer/PySR/pull/1086 chore(deps): bump peter-evans/create-pull-request from 7 to 8 by @dependabot[bot] in https://github.com/MilesCranmer/PySR/pull/1097 chore(deps): bump actions/cache from 4 to 5 by @dependabot[bot] in https://github.com/MilesCranmer/PySR/pull/1099 chore(deps): bump actions/setup-node from 4 to 6 by @dependabot[bot] in https://github.com/MilesCranmer/PySR/pull/1062 chore(deps): bump docker/setup-qemu-action from 3 to 4 by @dependabot[bot] in https://github.com/MilesCranmer/PySR/pull/1147 [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in https://github.com/MilesCranmer/PySR/pull/1039 New Contributors @paulomontero made their first contribution in https://github.com/MilesCranmer/PySR/pull/1098 @luna026 made their first contribution in https://github.com/MilesCranmer/PySR/pull/1107 @anubhavkamal made their first contribution in https://github.com/MilesCranmer/PySR/pull/1074 Full Changelog: https://github.com/MilesCranmer/PySR/compare/v2.0.0a1...v2.0.0a2