PySDM v2.29

• added CPU vs. GPU performance comparison for the Srivastava_1978 setup
• removed spurious index copying in attributes

PySDM v2.28

• refactor in GPU backend using @cached_property instead of lengthy ctors in methods classes (results in a lazy evaluation bonus)
• dropping support for Python 3.7 (due to @cached_property, and in line with 3.7 end of life)
• C code syntax fixes & cleanups in GPU backend
• atomicAdd workaround for double precision type on older CUDA (#1138)

PySDM v2.27

• option to use a non-constant timescale in the relaxed velocity dynamic (#1114) - @bradybhalla

PySDM v2.26

• breakup function renaming withing backend code (#1126) - @abulenok
• phasing out "q" var naming in favour of "water_vapour_mixing_ratio", etc (#1131)
• updates to the Grabowski & Pawlowska 2023 example: condensation tolerance, ripening rate (#1129) - @AgnieszkaMakulska
• cleaning up code that triggered redefined-outer-name pylint warning in pytest fixtures and notebook-embedded function definitions (#1133)
• ensuring all classes are accessible after importing only the main PySDM package (#1135)

PySDM v2.25

• new example notebooks and smoke tests covering complete set of figures from Grabowski & Pawlowska 2023
• new product base class: _ActivationFilteredProduct
• new products based on the above: ActivatedParticleConcentration, ActivatedParticleSpecificConcentration, ActivatedMeanRadius
• new size-spectral products: MeanVolumeRadius, AreaStandardDeviation, RadiusStandardDeviation, VolumeStandardDeviation
• new attribute: EquilibriumSupersaturation
• cleanups in Yang_et_al_2018 example (incl. using the above new products instead of manually computing the activation-filtered quantities)

kudos @AgnieszkaMakulska!

PySDM v2.24

• switching from "n" to "multiplicity" for attribute key (#1123)
• improving reporting of filenames in pytest example test suites (#1121)

PySDM v2.23

• linear (instead of constant) density/pressure profile for condensation in parcel environment (kudos @mikhailmints)
• updates in immersion freezing example to match arXiv-uploaded figures
• using the CI env var to trigger FakeThrust (thus making it easier to locally reproduce CI behaviour)
• renumbered figured in de Jong et al. breakup example to match final paper
• new tests (codecov now reports 80%!), code cleanups

PySDM v2.22

• RelaxedVelocity dynamic (allowing for relaxation to terminal speeds) and relative fall velocity attribute refactor
• mermaid diagrams in README depicting PySDM submodule organisation and what's being passed where in the hello-world example

thanks to @bradybhalla and @edejong-caltech!

PySDM v2.21

• PySDM-examples repo contents moved into PySDM repo (retaining separate PyPI packages)
• introducing test suites to shorten time-to-completion of CI runs
• switching from BDF to LSODA SciPy solver for condensation tests
• speeding up super-droplet count product
• using devops_tests in CI to share common test code across open-atmos projects
• more test cases added for test_n_breakups
• clarified literature references (incl. class dependency structure) in latent heat, diffusion kinetics and diffusion thermics formulae

thanks @claresinger, @abulenok and @AgnieszkaMakulska for contributions, reviews and issue reports.

PySDM v2.20

• updated multi-step breakup algorithm (kudos @abulenok & @edejong-caltech)