We are very happy to announce that CmdStan 2.31.0 is out!
This new release brings algebraic solver functions with variadic arguments, truncation syntax for vectorized sampling statements, quantile functions (inverse-CDFs), complex-valued Schur decomposition for matrices and direct access to the log_prob function and the gradients in CmdStan and other minor bugfixes.
For details, see the blog post: Release of CmdStan 2.31 – The Stan Blog