v2.36.0 (10 December 2024)

• No longer force fix_param when model has no parameters. (#1288)
• Updated stansummary to use split, rank-normalized Rhat and ESS. (#1301)
• Fixed stansummary crashing if it is run on a csv file without any __ columns (#1283)
• Fixed stansummary not rebuilding when a dependent file changes (#1283)
• Removed support for adding makefile variables in ~/.config/stan/make.local. Use the make/local file in the CmdStan directory instead. (#1282, #1284)
• Windows: Don't try to copy tbb.dll if TBB_TARGETS is undefined. (#1285)

v2.36.0-rc2 (3 December 2024)

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v2.36.0-rc1 (25 November 2024)

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v2.35.0 (3 June 2024)

• Exposes new arguments for laplace:
  calculate_lp is a boolean subarg of laplace which controls whether or not log_prob is called for each approximate draw. Default is true (existing behavior).
  The diagnostic_file argument of output now exposes information from the mode, namely the gradient and Hessian.
  (#1246)
• CmdStan will now halt if a filesystem error prevents writing to one of the output files. (#1249)
• The generate_quantities method now supports the num_chains arguments to perform downstream analysis in parallel. (#1256)
• log_prob now prevents the same CSV from being read and written to at the same time. (#1259)
• Boolean arguments to cmdstan accept true and false in addition to 1 and 0. (#1260)
• mingw32-make is no longer necessary on Windows, the standard make program is sufficient. (#1262)
• Improved the logic around the USER_HEADER variable to give an informative error when it is misspecified. (#1264)
• make clean deletes more files, hopefully making it so make clean-all needs to be run far less often. (#1267)
• Fixed an issue preventing the precompiled header from being used with GCC. (#1268)
• Allow num_warmup=0 to be paired with adapt engaged=0 when the algorithm is the fixed_param sampler. (#1277)

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v2.35.0-rc3 (23 May 2024)

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v2.35.0-rc2 (13 May 2024)

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v2.35.0-rc1 (13 May 2024)

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v2.34.1 (23 January 2024)

• Fixed an indexing error which could lead to crashes (#1239)
• Fixed an issue where output was swallowed by the log_prob method if an error occurred (#1235)
• Fixed an issue where floating point arguments would be echoed back to the user with insufficient precision (#1243)

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v2.34.0 (16 January 2024)

• Add option adaptation save_metric=1 to save adapted metric in separate JSON file with elements "stepsize", "metric_type" and "inv_metric" (#1203, #1229)
• New argument under output save_cmdstan_config. If set to 1, creates output_config.json which contains the argument tree and extra information (equivalent to the CSV file header) (#1204)
• Adds psis_resample and calculate_lp as options for Pathfinder (#1234)
• Removed usages of boost::lexical_cast (#1205)
• Resolved various compiler warnings (#1206)
• Fixed a linking issue when building stansummary (#1209)
• Fixed an issue where the default values of some arguments were not printed in sufficient precision (#1215)
• Improved the error users see if they are missing the stan or stan_math submodules (#1217)
• Improved the dependency detection in the build system (#1219)
• Added a warning when more PSIS draws are requested than total number of draws from single-pathfinders (#1221)
• Disallowed pathfinder when the model has no parameters. (#1221)
• Fixed a typo in make help-dev. (#1225)
• Fixed several edge cases and unexpected behaviors in the way output filenames were generated for multi-chain sampling and multi-path Pathfinder (#1228)
• Added a version.hpp header (#1231)

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v2.34.0-rc1 (8 January 2024)

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