[CODE] NNPDF/nnpdf: 4.0.9

Release for 4.0 N3LO ; Last release fully backwards-compatible with 4.0 pipeline. 4.0 runcards will still work but: external tools, data and theory not used in the 4.0 family of fits will no longer be guaranteed to work going forward. Last release compatible with the old commondata format Highlights The usage of cmake is now optional and only used to install the legacy version of evolven3fit and buildmaster (#1773, #1690) Commondata and the theorydb is installed as part of the python package (#1861) ${XDG_CONFIG_HOME}/NNPDF/nnprofile.yaml is now the default location for the NNPDF profile (#1861) Added the flag redo-regression in github to autogenerate regression tests (#1944) Misc changes and improvements to th variation plots (#1910) Fits without charm sumrule can be now performed with the sum_rules: "ALLBUTCSR" option (#1926) Full set of changes and PRs point to the right db by @scarlehoff in https://github.com/NNPDF/nnpdf/pull/1919 Include the theory covariance matrix in the chi2 by dataset by @andreab1997 in https://github.com/NNPDF/nnpdf/pull/1918 Be less strict and more granular when defining inconsistent version by @scarlehoff in https://github.com/NNPDF/nnpdf/pull/1920 Merge prefactors into single layer by @APJansen in https://github.com/NNPDF/nnpdf/pull/1881 Add more regression tests by @scarlehoff in https://github.com/NNPDF/nnpdf/pull/1924 Add an lhapdf_compatibility module for LHAPDF by @scarlehoff in https://github.com/NNPDF/nnpdf/pull/1799 Change from defaults to forge, update workflows by @scarlehoff in https://github.com/NNPDF/nnpdf/pull/1932 Add flag double_precision by @APJansen in https://github.com/NNPDF/nnpdf/pull/1929 Extend th covmat plots by @giacomomagni in https://github.com/NNPDF/nnpdf/pull/1910 add nFONLL alphas varariations to theorydb by @RoyStegeman in https://github.com/NNPDF/nnpdf/pull/1937 Automatic port old commondata to the new format by @scarlehoff in https://github.com/NNPDF/nnpdf/pull/1931 New Common Datasets by @scarlehoff in https://github.com/NNPDF/nnpdf/pull/1813 Automate regression updates by @APJansen in https://github.com/NNPDF/nnpdf/pull/1944 Multi dense layer by @APJansen in https://github.com/NNPDF/nnpdf/pull/1905 Add Q0 varied theories by @niclaurenti in https://github.com/NNPDF/nnpdf/pull/1948 Ttb dataset fixes by @t7phy in https://github.com/NNPDF/nnpdf/pull/1947 Added lru caches to speed up validphys multi-replica initalization by @goord in https://github.com/NNPDF/nnpdf/pull/1945 Remove bugged raise Error when using multiple covmats by @RoyStegeman in https://github.com/NNPDF/nnpdf/pull/1951 Drop the sqr and label the y by @t7phy in https://github.com/NNPDF/nnpdf/pull/1952 Parallel replicas with varying tr-vl masks by @goord in https://github.com/NNPDF/nnpdf/pull/1788 drop figure_by when not required by @t7phy in https://github.com/NNPDF/nnpdf/pull/1953 drop sys breakdown in favor of covmat by @t7phy in https://github.com/NNPDF/nnpdf/pull/1957 Complete baseline theories for polarised fits by @Radonirinaunimi in https://github.com/NNPDF/nnpdf/pull/1954 FHMRUVV N3LO fits by @giacomomagni in https://github.com/NNPDF/nnpdf/pull/1911 Remove charm sumrule by @tgiani in https://github.com/NNPDF/nnpdf/pull/1926 Add info about 4.0.9 tag + update fitbot by @scarlehoff in https://github.com/NNPDF/nnpdf/pull/1959 Add a stable reference report by @scarlehoff in https://github.com/NNPDF/nnpdf/pull/1963 Full Changelog: https://github.com/NNPDF/nnpdf/compare/4.0.8...4.0.9

Zaharid, Juan M. Cruz-Martinez, Stefano Carrazza, Rosalyn Pearson, Cameron Voisey, wilsonmr, Andrea Barontini, Roy Stegeman, Niccolò Laurenti, Nathan Hartland, Aron Jansen, Emanuele R. Nocera, Luca Rottoli, Rabah Abdul Khalek, Emma Slade, Giacomo Magni, Mark Nestor Costantini, siranipour, Carlos Murilo Romero Rocha, … gstagnit. (2024). NNPDF/nnpdf: 4.0.9 (4.0.9). Zenodo. https://doi.org/10.5281/zenodo.10730835