PyMC3 3.11.2 (14 March 2021) New Features pm.math.cartesian can now handle inputs that are themselves >1D (see #4482). Statistics and plotting functions that were removed in 3.11.0 were brought back, albeit with deprecation warnings if an old naming scheme is used (see #4536). In order to future proof your code, rename these function calls: pm.traceplot → pm.plot_trace pm.compareplot → pm.plot_compare (here you might need to rename some columns in the input according to the arviz.plot_compare documentation) pm.autocorrplot → pm.plot_autocorr pm.forestplot → pm.plot_forest pm.kdeplot → pm.plot_kde pm.energyplot → pm.plot_energy pm.densityplot → pm.plot_density pm.pairplot → pm.plot_pair Maintenance ⚠ Our memoization mechanism wasn't robust against hash collisions (#4506), sometimes resulting in incorrect values in, for example, posterior predictives. The pymc3.memoize module was removed and replaced with cachetools. The hashable function and WithMemoization class were moved to pymc3.util (see #4525). pm.make_shared_replacements now retains broadcasting information which fixes issues with Metropolis samplers (see #4492). Release manager for 3.11.2: Michael Osthege (@michaelosthege)