Last release before necessary dependency and Python version updates.
Included are many bug fixes, cleanups, and documentation improvements, as well as several new physics capabilities, analysis options, and framework enhancements.
What's Changed
* Fix Etot bug and add comments for clarity. by LeanderFischer in https://github.com/icecube/pisa/pull/741
* fixed small bug in `fit_scipy` by BenSmithers in https://github.com/icecube/pisa/pull/742
* Derived Parameters in CFG files by BenSmithers in https://github.com/icecube/pisa/pull/729
* Detector class bug fixes by JanWeldert in https://github.com/icecube/pisa/pull/743
* Update README.md by LeanderFischer in https://github.com/icecube/pisa/pull/744
* Fix dependencies and README by LeanderFischer in https://github.com/icecube/pisa/pull/746
* Deprecate argument by LeanderFischer in https://github.com/icecube/pisa/pull/745
* Add densitiy scale by JanWeldert in https://github.com/icecube/pisa/pull/747
* Bump python version by LeanderFischer in https://github.com/icecube/pisa/pull/752
* Implement Neutrino decay in PISA (Prob3) by anilak41 in https://github.com/icecube/pisa/pull/748
* Fix dependencies and update install instructions by LeanderFischer in https://github.com/icecube/pisa/pull/753
* Clarify that poissonLLH in likelihood_functions.py does not take into… by finnmayhew in https://github.com/icecube/pisa/pull/755
* Re-shaped the mod_chi2's return to match the input shape by JKrishnamoorthi in https://github.com/icecube/pisa/pull/760
* adding DAEMONFLUX stage by marialiubarska in https://github.com/icecube/pisa/pull/761
* Updated local installation instruction by JKrishnamoorthi in https://github.com/icecube/pisa/pull/763
* Addition of LRI potential by ggarg07 in https://github.com/icecube/pisa/pull/762
* Addition of density as a free parameter for tomography by sc458930 in https://github.com/icecube/pisa/pull/764
* Take into account covariance matrix for daemonflux parameters by marialiubarska in https://github.com/icecube/pisa/pull/766
* Update README.md by LeanderFischer in https://github.com/icecube/pisa/pull/767
* Update INSTALL.md by LeanderFischer in https://github.com/icecube/pisa/pull/768
* Update doc files and set up docu workflow to deploy sphinx to gh pages. by LeanderFischer in https://github.com/icecube/pisa/pull/769
* basic example code to get event wise information by JKrishnamoorthi in https://github.com/icecube/pisa/pull/765
* Update README.md by LeanderFischer in https://github.com/icecube/pisa/pull/772
* Update fix_error.py description by finnmayhew in https://github.com/icecube/pisa/pull/776
* Deprecate duplicated prior functions by JanWeldert in https://github.com/icecube/pisa/pull/773
* Stage and pipeline related documentation touch ups by thehrh in https://github.com/icecube/pisa/pull/780
* Update README.md by LeanderFischer in https://github.com/icecube/pisa/pull/781
* adding stage for external osc calc by philippeller in https://github.com/icecube/pisa/pull/756
* fix plotting 2d arrays (not caught by unit tests) by thehrh in https://github.com/icecube/pisa/pull/783
* Remove unimplemented analytical NSI matrix calculation from nsi_param… by finnmayhew in https://github.com/icecube/pisa/pull/786
* Finally fix map.plot, to be actually usable.. by LeanderFischer in https://github.com/icecube/pisa/pull/787
* Update significantly outdated documentation of global constants by thehrh in https://github.com/icecube/pisa/pull/789
* Fix doubly defined `report_profile` method in `stage.py` + minor touch-ups by thehrh in https://github.com/icecube/pisa/pull/791
* Make event cutting for `EventsPi` work also when at least one variable name is conta… by thehrh in https://github.com/icecube/pisa/pull/792
* Apply obvious outstanding fixes to `simple_signal` and `generalized_llh_params` services by thehrh in https://github.com/icecube/pisa/pull/793
* Apply small fixes to (mostly) docstrings of `config_parser` module and extend unit test by thehrh in https://github.com/icecube/pisa/pull/794
* Fix broken links in general conventions guide by thehrh in https://github.com/icecube/pisa/pull/796
* Revive parametric Aeff stage by JanWeldert in https://github.com/icecube/pisa/pull/798
* Clean up imports by services and get rid of unused `WHERE` constant for smart arrays by thehrh in https://github.com/icecube/pisa/pull/790
* Add link to general PISA conventions in root readme by thehrh in https://github.com/icecube/pisa/pull/805
* Remove obsolete scripts from `pisa_tests` directory and update entry points in `setup.py` by thehrh in https://github.com/icecube/pisa/pull/812
* Allow for ultrasurfaces fit results file path relative to pisa resources search paths by thehrh in https://github.com/icecube/pisa/pull/813
* remove fit and minimiser settings in unused and unparsable .cfg format by thehrh in https://github.com/icecube/pisa/pull/820
* Allow reporting timing data for several pipelines at once (from any `Detectors` or `DistributionMaker` instance) ... by thehrh in https://github.com/icecube/pisa/pull/822
* make `to_file` accept simple file name again by thehrh in https://github.com/icecube/pisa/pull/824
* Adding a contributing guide by JanWeldert in https://github.com/icecube/pisa/pull/826
* Service transparency and usability: expected data keys, supported representations, unit tests by thehrh in https://github.com/icecube/pisa/pull/817
* First version of an MCMC sampler by JanWeldert in https://github.com/icecube/pisa/pull/829
* Update release.yml by philippeller in https://github.com/icecube/pisa/pull/837
* Restructure and update installation instructions by thehrh in https://github.com/icecube/pisa/pull/836
* Update install instructions by JanWeldert in https://github.com/icecube/pisa/pull/832
* Fix python test environment setup. by LeanderFischer in https://github.com/icecube/pisa/pull/844
* Enable (in)equality constraints for use with local and global scipy minimizers by thehrh in https://github.com/icecube/pisa/pull/841
* Update discrete systematic README (Ultrasurface use) by LeanderFischer in https://github.com/icecube/pisa/pull/846
* Various documentation touch-ups by thehrh in https://github.com/icecube/pisa/pull/848
* Alternative variable binning approach by JanWeldert in https://github.com/icecube/pisa/pull/849
* update sphinx build config file version string from 4.1 -> 4.2 by thehrh in https://github.com/icecube/pisa/pull/850
New Contributors
* finnmayhew made their first contribution in https://github.com/icecube/pisa/pull/755
* ggarg07 made their first contribution in https://github.com/icecube/pisa/pull/762
* sc458930 made their first contribution in https://github.com/icecube/pisa/pull/764
**Full Changelog**: https://github.com/icecube/pisa/compare/4.1...4.2