# CmdStanPy 1.0.1

**URL:** https://discourse.mc-stan.org/t/cmdstanpy-1-0-1/26342
**Category:** Other
**Created:** [February 14, 2022, 5:29pm UTC](https://discourse.mc-stan.org/t/cmdstanpy-1-0-1/26342 "2022-02-14T17:29:17Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![WardBrian](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.mc-stan.org/wardbrian/32/12078_2.png) [@WardBrian](https://discourse.mc-stan.org/u/WardBrian)
#### Post date: [February 14, 2022, 5:29pm UTC](https://discourse.mc-stan.org/t/cmdstanpy-1-0-1/26342/1 "2022-02-14T17:29:17Z")

</div>

A new minor release for CmdStanPy is available which fixes a number of bugs reported in 1.0.0

## CmdStanPy 1.0.1

- Support new optimizations in CmdStan 2.29
- Support complex numbers as both inputs and outputs of Stan programs
- Speed up assembling output by only reading draws at most once
- Fixed an issue where a command failing could change your working directory
- Improve error messages in some cases
- CmdStanPy no longer changes the global root logging level

Note: The minimum supported version for CmdStanPy is now Python 3.7.

The release is available on [GitHub](https://github.com/stan-dev/cmdstanpy/releases/tag/v1.0.1) and [PyPi](https://pypi.org/project/cmdstanpy/). Conda builds should be available soon.