- Updating sampling for distributions, updating sampling for incomplete grids - Optimizing performance tuning - All instance of nchains were changed to njobs, including nsamples_per_chain -> nsamples_per_job - There is no recommended value any more for the number of samples per chain. It is advised to start with a small number and increase as needed to get satisfactory diagnostics. When no number is provided by the user, the default will be the minimum number set in rcparams.