4.1.0

While not attached to a PDF release, this is a major release of the framework as many things have changed in the backend and legacy code has been removed. What follows is a (non-exhaustive) list of breaking changes and most important differences.

This tag allow us to branch off a stable 4.0.x branch where bugs might be back-ported and the 4.1.0 series which will not attempt to be completely backwards compatible with 4.0 (although compatibility at the level of runcards will be attempted).

Library changes

• Only pineappl >= 1 allowed
• Only eko >= 0.15 allowed (and ekos constructed with eko >= 0.14)
• parallel_models=true is now the default when running more than one replica at once
• Diagonal covmat #2301 now fully implemented and will eventually be made default
• ekos are now downloaded independently by vp-get eko <theoryid> to its own folder

Breaking changes

• All dataset names must follow the new naming conventions, old naming is no longer allowed.
• Older theories have been removed, except for those used for PDF releases.
• separate_multiplicative defaults to False
• resample_pseudodata defaults to False (negative pseudodata no longer resampled by default)
• Pseudodata is now generated using the t0 PDF by default

What's Changed

• Update docs, citations by @scarlehoff in #2296
• Positivity fktables at Q2 = 10 by @comane in #2285
• Merge all pytest workflows by @scarlehoff in #2298
• Add faketheoryid by @RoyStegeman in #2297
• Prepare a coverage report in the CI by @scarlehoff in #2299
• some things used in alphas studies by @RoyStegeman in #2302
• Define theory settings for 4.1 by @felixhekhorn in #2295
• Remove all old theories by @scarlehoff in #2304
• C-factors in the API extension by @achiefa in #2307
• Fix rapidity in SIHP-pp by @Radonirinaunimi in #2310
• Hotfix for macos 15.4 , rsync -> openrsync by @scarlehoff in #2311
• Miscellaneous improvements to docs and tests by @scarlehoff in #2305
• Modify how losses are computed in a multi-replicas hyperopt by @Radonirinaunimi in #2145
• Introduce frag scale to theory card by @t7phy in #2308
• True Positive and Negative rates in multiclosure weighted fits by @comane in #2258
• reactivate use_t0_sampling by @comane in #2300
• Modify the theory metadata for ATLAS_Z0J_8TEV_PT-M by @scarlehoff in #2316
• Use eko v0.15 by @scarlehoff in #2181
• Make parallel_models=true the default by @scarlehoff in #2313
• Data update 250521 by @scarlehoff in #2321
• Add an option to drop filter rules for a given dataset by @scarlehoff in #2309
• Modified label in theory covariance matrix by @enocera in #2324
• update scalevariationtheoryids for alphas fits by @RoyStegeman in #2327
• Remove accidental 's' from commondata by @RoyStegeman in #2329
• loop over replica_ folders rather than replica numbers starting from 0 by @RoyStegeman in #2328
• Update PineAPPL version to v1 by @Radonirinaunimi in #2217
• Diagonal covmat by @jacoterh in #2301
• Evolution of hessian sets and refactor of evolven3fit by @tgiani in #2325
• fix photon replica treatment if replica is equal to the number of replicas in the luxset by @RoyStegeman in #2333
• Use new theories and names for tests and examples by @scarlehoff in #2303
• don't resample L2 pseudodata by @RoyStegeman in #2275
• Separate the ekos into its own folder by @scarlehoff in #2331
• Remove a bunch of deprecated functions and options by @scarlehoff in #2334

Full Changelog: 4.0.10...4.1.0