# 🚀 Release v5.27.0

**URL:** <https://discourse.pymc.io/t/release-v5-27-0/17494>\
**Category:** News\
**Created:** [December 21, 2025, 3:03pm UTC](https://discourse.pymc.io/t/release-v5-27-0/17494 "2025-12-21T15:03:51Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![ricardoV94](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.pymc.io/ricardov94/32/5775_2.png) [@ricardoV94](https://discourse.pymc.io/u/ricardoV94)\
**Post date:** [December 21, 2025, 3:03pm UTC](https://discourse.pymc.io/t/release-v5-27-0/17494/1 "2025-12-21T15:03:51Z")

</div>

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

## 📦 Release Information

- **Version:** `v5.27.0`
- **Repository:** [pymc-devs/pymc](https://github.com/pymc-devs/pymc)
- **Release Page:** [Release v5.27.0 · pymc-devs/pymc · GitHub](https://github.com/pymc-devs/pymc/releases/tag/v5.27.0)
- Note: It may take some time for the release to appear on PyPI and conda-forge.

## 📋 Release Notes

## What’s Changed

### Major Changes 🛠

- Bump PyTensor dependency and support Python 3.14 by [@ricardoV94](https://github.com/ricardoV94) in [#8010](https://github.com/pymc-devs/pymc/pull/8010)
- Replace VarName with built-in str by [@osyuksel](https://github.com/osyuksel) in [#7855](https://github.com/pymc-devs/pymc/pull/7855)

### New Features 🎉

- Automatically derive icdf for negative power transforms by [@ricardoV94](https://github.com/ricardoV94) in [#7956](https://github.com/pymc-devs/pymc/pull/7956)
- Added icdf for HalfStudentT by [@dalai444](https://github.com/dalai444) in [#7919](https://github.com/pymc-devs/pymc/pull/7919)
- Add ICDF for the Kumaraswamy distribution by [@gokuld](https://github.com/gokuld) in [#6642](https://github.com/pymc-devs/pymc/pull/6642)
- Add power\_spectral\_density to RatQuad covariance kernel for HSGP support by [@fonnesbeck](https://github.com/fonnesbeck) in [#7973](https://github.com/pymc-devs/pymc/pull/7973)
- Adding Dirichlet and SimplexTransform to pymc.dims by [@zaxtax](https://github.com/zaxtax) in [#7921](https://github.com/pymc-devs/pymc/pull/7921)

### Bugfixes 🪲

- Fix `independent_rvs` determination in `vectorize_over_posterior` by [@lucianopaz](https://github.com/lucianopaz) in [#7890](https://github.com/pymc-devs/pymc/pull/7890)

### Documentation 📖

- Remove `MutableData` by [@sotagg](https://github.com/sotagg) in [#7900](https://github.com/pymc-devs/pymc/pull/7900)
- Use correct coords in `Model` docstring by [@williambdean](https://github.com/williambdean) in [#7970](https://github.com/pymc-devs/pymc/pull/7970)
- Clarify ZeroSumNormal covariance documentation by [@swarnaliiiiii](https://github.com/swarnaliiiiii) in [#7988](https://github.com/pymc-devs/pymc/pull/7988)
- Readme updates by [@OriolAbril](https://github.com/OriolAbril) in [#7941](https://github.com/pymc-devs/pymc/pull/7941)

### Maintenance 🔧

- Add support for sample\_stats group in `pymc.testing.mock_sample` by [@williambdean](https://github.com/williambdean) in [#7887](https://github.com/pymc-devs/pymc/pull/7887)
- Fix print name of `LogitNormal` and `DiscreteWeibull` by [@aloctavodia](https://github.com/aloctavodia) in [#7935](https://github.com/pymc-devs/pymc/pull/7935)
- Change `s/draws` to `s/draw` by [@premshaw04](https://github.com/premshaw04) in [#7953](https://github.com/pymc-devs/pymc/pull/7953)
- Import math module in root by [@williambdean](https://github.com/williambdean) in [#7965](https://github.com/pymc-devs/pymc/pull/7965)

## New Contributors

- [@Copilot](https://github.com/Copilot) made their first contribution in [#7928](https://github.com/pymc-devs/pymc/pull/7928)
- [@sotagg](https://github.com/sotagg) made their first contribution in [#7900](https://github.com/pymc-devs/pymc/pull/7900)
- [@premshaw04](https://github.com/premshaw04) made their first contribution in [#7953](https://github.com/pymc-devs/pymc/pull/7953)
- [@dalai444](https://github.com/dalai444) made their first contribution in [#7919](https://github.com/pymc-devs/pymc/pull/7919)
- [@immortal71](https://github.com/immortal71) made their first contribution in [#7962](https://github.com/pymc-devs/pymc/pull/7962)
- [@swarnaliiiiii](https://github.com/swarnaliiiiii) made their first contribution in [#7988](https://github.com/pymc-devs/pymc/pull/7988)  
**Full Changelog** : [Comparing v5.26.1...v5.27.0 · pymc-devs/pymc · GitHub](https://github.com/pymc-devs/pymc/compare/v5.26.1...v5.27.0)

* * *

_This post was automatically generated from the GitHub release._