Issues

• Model methods fail on a reloaded fit when the data was passed in memory

  bug
  stan-dev/cmdstanr#1331 · Filter by author jgabry opened on Oct 15, 2026

• Reuse a fit's CSV metadata on subsequent reads

  internal-code
  stan-dev/cmdstanr#1314 · Filter by author jgabry opened on Oct 7, 2026
  4

• Switch the windows-11-arm job back to the stable pak after next pak release

  internal-code
  stan-dev/cmdstanr#1305 · Filter by author jgabry opened on Oct 5, 2026

• Improve warnings and messages behavior

  feature
  stan-dev/cmdstanr#1175 · Filter by author avehtari opened on Apr 8, 2026
  1

• CmdStanR 1.0 release

  stan-dev/cmdstanr#1059 · Filter by author jgabry opened on Feb 12, 2025 · v1.0.0 - release
  8

• on-disk/lazy draw backend for large fits

  feature
  stan-dev/cmdstanr#1041 · Filter by author stemangiola opened on Nov 20, 2024
  6

• Enable running unittests safely in parallel by giving them independent workspaces

  internal-code
  stan-dev/cmdstanr#1025 · Filter by author katrinabrock opened on Aug 22, 2024
  1

• Add option for linking and executing models through R/Rcpp to avoid admin issues with executables

  stan-dev/cmdstanr#918 · Filter by author andrjohns opened on Feb 9, 2024
  2

• Utilize multiple GPUs

  feature
  stan-dev/cmdstanr#891 · Filter by author thk686 opened on Jan 2, 2024
  2

• Add toolchain setup check for OpenCL

  feature
  stan-dev/cmdstanr#858 · Filter by author andrjohns opened on Sep 27, 2023
  2

• Allow structured format for unconstrained parameters

  feature
  stan-dev/cmdstanr#730 · Filter by author andrjohns opened on Dec 19, 2022
  8

• Add WSL support for model methods and exposing functions

  feature
  stan-dev/cmdstanr#714 · Filter by author andrjohns opened on Nov 7, 2022
  

• Add warmup_draws = T argument to read_cmdstan_csv

  feature
  stan-dev/cmdstanr#565 · Filter by author jsocolar opened on Oct 5, 2021 · future
  2

  

• [FR] Use new num_chains arg in cmdstan for hmc, fixed params, and generated quantities

  feature
  stan-dev/cmdstanr#534 · Filter by author SteveBronder opened on Aug 13, 2021 · future
  17

• Document various performance tips and tricks

  documentation
  stan-dev/cmdstanr#506 · Filter by author jgabry opened on May 20, 2021 · future
  7

• MPI generated quantities

  feature
  stan-dev/cmdstanr#475 · Filter by author yizhang-yiz opened on Mar 24, 2021 · future
  1

• easy way to limit sampling to a maximum time duration

  feature
  stan-dev/cmdstanr#474 · Filter by author jpritikin opened on Mar 23, 2021 · future
  4

• Option to send $sample() output to file instead of console

  feature
  stan-dev/cmdstanr#473 · Filter by author seth127 opened on Mar 18, 2021 · future
  2

• Diagnostics-driven sampling termination (feature request & design discussion)

  feature
  stan-dev/cmdstanr#426 · Filter by author mike-lawrence opened on Jan 2, 2021 · future

• During-sampling diagnostics (feature request & design discussion)

  feature
  stan-dev/cmdstanr#425 · Filter by author mike-lawrence opened on Jan 2, 2021 · future
  2

• Background/asynchronous sampling (feature request & design discussion)

  feature
  stan-dev/cmdstanr#424 · Filter by author mike-lawrence opened on Jan 2, 2021 · future
  11