v3.2.1

A not-so-minor release containing the following user-facing changes, among others:

• Updated BOSS DR16 (thanks Pablo Lemos!), BICEP-Keck 2021 (thanks Dominic Beck!) PolyChord v1.20.1 (thanks Will Handley!), CLASS v3.2 (thanks Julien Lesgourgues and Nils Schöneberg!), CAMB (always last master commit) and (un-)official SPT likelihoods (external, thanks Xavier Garrido!). Run cobaya-install cosmo --upgrade to download them!

• Added a convenient --minimize flag to cobaya-run: just re-run your previous MCMC/PolyChord runs with this flag to start a minimization process starting from the best point of your previous sample.

• File locking was introduced in a previous version as a way to prevent parallel runs (e.g. due non-working MPI installs) to overwrite each other, but it may cause problems in some systems. To disable it you can now set the environment variable COBAYA_USE_FILE_LOCKING=false.

• CAMB and CLASS: added Omega_b|cdm|nu_massive(z) and angular_diameter_distance_2. Pk_interpolator can now extrapolate towards low k using extrap_kmin.

• CAMB and CLASS: added ignore_obsolete option to be able to run with your modified older CAMB and CLASS versions.

• CAMB: Support setting individual Accuracy parameters, e.g. Accuracy.AccurateBB.

• CLASS: added sigmaR(z), sigma8(z), fsgima8(z) and Weyl potential power spectrum (were already in CAMB). Added direct access to some CLASS computation products, via new requisites CLASS_[background|thermodynamics|primordial|perturbations|sources]. Changed default non_linear to hmcode (was none).

• Many small fixes to code and docs, thanks to Caterina Umilta, Paolo Campeti, Lukas Hergt, Will Handley, @valadur19, Adam Ormondroyd, Chris Walter, Jack Runburg and Paul Shah!

Don't forget to run cobaya-install cosmo --upgrade after upgrading to Cobaya 3.2 to get the latest versions of all codes and likelihoods!