# 🚀 Release v6.1.0

**URL:** <https://discourse.pymc.io/t/release-v6-1-0/17869>\
**Category:** News\
**Created:** [July 7, 2026, 10:17am UTC](https://discourse.pymc.io/t/release-v6-1-0/17869 "2026-07-07T10:17:15Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![pymc-bot](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.pymc.io/pymc-bot/32/9384_2.png) [@pymc-bot](https://discourse.pymc.io/u/pymc-bot)\
**Post date:** [July 7, 2026, 10:17am UTC](https://discourse.pymc.io/t/release-v6-1-0/17869/1 "2026-07-07T10:17:15Z")

</div>

A new release of **pymc** is now available!

## 📦 Release Information

- **Version:** `v6.1.0`
- **Repository:** [pymc-devs/pymc](https://github.com/pymc-devs/pymc)
- **Release Page:** [Release v6.1.0 · pymc-devs/pymc · GitHub](https://github.com/pymc-devs/pymc/releases/tag/v6.1.0)
- Note: It may take some time for the release to appear on PyPI and conda-forge.

## 📋 Release Notes

## What’s Changed

### Major Changes 🛠

- Add helper to extract and reinsert deterministics in a model by [@ricardoV94](https://github.com/ricardoV94) in [#8340](https://github.com/pymc-devs/pymc/pull/8340)
  - Includes breaking changes to the model fgraph IR

- Compatibility with pytensor 3.1 by [@ricardoV94](https://github.com/ricardoV94) in [#8348](https://github.com/pymc-devs/pymc/pull/8348)
  - Includes Op infer\_shape signature deprecation and changes to core ops (Join and Split)

- Deprecate DensityDist in favor of CustomDist by [@laishettikarthik-tech](https://github.com/laishettikarthik-tech) in [#8349](https://github.com/pymc-devs/pymc/pull/8349)

### New Features 🎉

- Implement `constrain_values` and `unconstrain_values` utility by [@zaxtax](https://github.com/zaxtax) in [#8327](https://github.com/pymc-devs/pymc/pull/8327)
- Implement icdf for Bernoulli by [@jacobpstein](https://github.com/jacobpstein) in [#8343](https://github.com/pymc-devs/pymc/pull/8343)

### Documentation 📖

- Update installation instructions to use pip by [@DrEntropy](https://github.com/DrEntropy) in [#8318](https://github.com/pymc-devs/pymc/pull/8318)
- Update install instructions to use v6 by [@fonnesbeck](https://github.com/fonnesbeck) in [#8323](https://github.com/pymc-devs/pymc/pull/8323)

### Bugfixes 🪲

- Fix regression where passing a model into `fit` stopped working by [@zaxtax](https://github.com/zaxtax) in [#8316](https://github.com/pymc-devs/pymc/pull/8316)

### Maintenance 🔧

- Visually split tuning/draw phase in progress bar by [@ricardoV94](https://github.com/ricardoV94) in [#8291](https://github.com/pymc-devs/pymc/pull/8291)
- Propagate dims in LatentKron GP prior by [@dhairya-motta](https://github.com/dhairya-motta) in [#8322](https://github.com/pymc-devs/pymc/pull/8322)

## New Contributors

- [@dhairya-motta](https://github.com/dhairya-motta) made their first contribution in [#8322](https://github.com/pymc-devs/pymc/pull/8322)
- [@DrEntropy](https://github.com/DrEntropy) made their first contribution in [#8318](https://github.com/pymc-devs/pymc/pull/8318)
- [@laishettikarthik-tech](https://github.com/laishettikarthik-tech) made their first contribution in [#8349](https://github.com/pymc-devs/pymc/pull/8349)
- [@jacobpstein](https://github.com/jacobpstein) made their first contribution in [#8343](https://github.com/pymc-devs/pymc/pull/8343)

**Full Changelog** : [https://github.com/pymc-devs/pymc/compare/v6.0.1...v6.1.0](https://github.com/pymc-devs/pymc/compare/v6.0.1...v6.1.0)

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_This post was automatically generated from the GitHub release._