# scikit-learn changelog

> Machine learning in Python.

- Vendor: scikit-learn
- Category: AI
- Official site: https://scikit-learn.org
- Tracked by: What's New (https://whatsnew.fyi/product/scikit-learn)
- Harvested from: GitHub (scikit-learn/scikit-learn)
- Entries below: 10 (newest first)

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

## Releases

### 1.9.0 — Scikit-learn 1.9.0

- Date: 2026-06-02
- Version: 1.9.0
- Original notes: https://github.com/scikit-learn/scikit-learn/releases/tag/1.9.0
- Permalink: https://whatsnew.fyi/product/scikit-learn/releases/1.9.0

- **added** — Narwhals as a new dependency to improve dataframe interoperability across the project
- **changed** — Support for Python versions 3.11 to 3.14

We're happy to announce the 1.9.0 release.

You can read the release highlights under https://scikit-learn.org/stable/auto_examples/release_highlights/plot_release_highlights_1_9_0.html and the long version of the change log under https://scikit-learn.org/stable/whats_new/v1.9.html

This release adds [narwhals](https://narwhals-dev.github.io/narwhals/) as a new dependency that will help to improve dataframe interoperability across the project.

This version supports Python versions 3.11 to 3.14.

You can upgrade with pip as usual:

```
pip install -U scikit-learn
```

The conda-forge builds can be installed using:

```
conda install -c conda-forge scikit-learn
```

### 1.8.0 — Release 1.8.0

- Date: 2025-12-10
- Version: 1.8.0
- Original notes: https://github.com/scikit-learn/scikit-learn/releases/tag/1.8.0
- Permalink: https://whatsnew.fyi/product/scikit-learn/releases/1.8.0

- **added** — Support for Python versions 3.11 to 3.14
- **added** — Support for free-threaded CPython

We're happy to announce the 1.8.0 release.

You can read the release highlights under https://scikit-learn.org/stable/auto_examples/release_highlights/plot_release_highlights_1_8_0.html and the long version of the change log under https://scikit-learn.org/stable/whats_new/v1.8.html

This version supports Python versions 3.11 to 3.14 and features support of free-threaded CPython.

You can upgrade with pip as usual:

```
pip install -U scikit-learn
```

The conda-forge builds can be installed using:

```
conda install -c conda-forge scikit-learn
```

### 1.7.2 — Scikit-learn 1.7.2

- Date: 2025-09-09
- Version: 1.7.2
- Original notes: https://github.com/scikit-learn/scikit-learn/releases/tag/1.7.2
- Permalink: https://whatsnew.fyi/product/scikit-learn/releases/1.7.2

We're happy to announce the 1.7.2 release.

This release contains a few bug fixes and is the first version supporting Python 3.14.

You can see the changelog here: https://scikit-learn.org/stable/whats_new/v1.7.html#version-1-7-2

You can upgrade with pip as usual:

```
pip install -U scikit-learn
```

The conda-forge builds can be installed using:

```
conda install -c conda-forge scikit-learn
```

Thanks to everyone who contributed to this release !

### 1.7.1 — Scikit-learn 1.7.1

- Date: 2025-07-18
- Version: 1.7.1
- Original notes: https://github.com/scikit-learn/scikit-learn/releases/tag/1.7.1
- Permalink: https://whatsnew.fyi/product/scikit-learn/releases/1.7.1

We're happy to announce the 1.7.1 release.

This release contains fixes for a few regressions introduced in 1.7.

You can see the changelog here: https://scikit-learn.org/stable/whats_new/v1.7.html#version-1-7-1

You can upgrade with pip as usual:

```
pip install -U scikit-learn
```

The conda-forge builds can be installed using:

```
conda install -c conda-forge scikit-learn
```

Thanks to everyone who contributed to this release !

### 1.7.0 — Scikit-learn 1.7.0

- Date: 2025-06-06
- Version: 1.7.0
- Original notes: https://github.com/scikit-learn/scikit-learn/releases/tag/1.7.0
- Permalink: https://whatsnew.fyi/product/scikit-learn/releases/1.7.0

We're happy to announce the 1.7.0 release.

You can read the release highlights under https://scikit-learn.org/stable/auto_examples/release_highlights/plot_release_highlights_1_7_0.html and the long version of the change log under https://scikit-learn.org/stable/whats_new/v1.7.html

This version supports Python versions 3.10 to 3.13 and features an experimental support of free-threaded CPython.

You can upgrade with pip as usual:

```
pip install -U scikit-learn
```

The conda-forge builds can be installed using:

```
conda install -c conda-forge scikit-learn
```

### 1.6.1 — Scikit-learn 1.6.1

- Date: 2025-01-10
- Version: 1.6.1
- Original notes: https://github.com/scikit-learn/scikit-learn/releases/tag/1.6.1
- Permalink: https://whatsnew.fyi/product/scikit-learn/releases/1.6.1

We're happy to announce the 1.6.1 release.

This release contains fixes for a few regressions introduced in 1.6.

You can see the changelog here: https://scikit-learn.org/stable/whats_new/v1.6.html#version-1-6-1

You can upgrade with pip as usual:

```
pip install -U scikit-learn
```

The conda-forge builds can be installed using:

```
conda install -c conda-forge scikit-learn
```

Thanks to everyone who contributed to this release !

### 1.6.0 — Scikit-learn 1.6.0

- Date: 2024-12-09
- Version: 1.6.0
- Original notes: https://github.com/scikit-learn/scikit-learn/releases/tag/1.6.0
- Permalink: https://whatsnew.fyi/product/scikit-learn/releases/1.6.0

We're happy to announce the 1.6.0 release.

You can read the release highlights under https://scikit-learn.org/stable/auto_examples/release_highlights/plot_release_highlights_1_6_0.html and the long version of the change log under https://scikit-learn.org/stable/whats_new/v1.6.html

This version supports Python versions 3.9 to 3.13 and features an experimental support of free-threaded CPython.

You can upgrade with pip as usual:

```
pip install -U scikit-learn
```

The conda-forge builds can be installed using:

```
conda install -c conda-forge scikit-learn
```

### 1.5.2 — Scikit-learn 1.5.2

- Date: 2024-09-11
- Version: 1.5.2
- Original notes: https://github.com/scikit-learn/scikit-learn/releases/tag/1.5.2
- Permalink: https://whatsnew.fyi/product/scikit-learn/releases/1.5.2

We're happy to announce the 1.5.2 release.

This release contains fixes for a few regressions introduced in 1.5.

You can see the changelog here: https://scikit-learn.org/stable/whats_new/v1.5.html#version-1-5-2

You can upgrade with pip as usual:

```
pip install -U scikit-learn
```

The conda-forge builds can be installed using:

```
conda install -c conda-forge scikit-learn
```

Thanks to everyone who contributed to this release !

### 1.5.1 — Scikit-learn 1.5.1

- Date: 2024-07-03
- Version: 1.5.1
- Original notes: https://github.com/scikit-learn/scikit-learn/releases/tag/1.5.1
- Permalink: https://whatsnew.fyi/product/scikit-learn/releases/1.5.1

We're happy to announce the 1.5.1 release.

This release contains fixes for a few regressions introduced in 1.5.

You can see the changelog here: https://scikit-learn.org/stable/whats_new/v1.5.html#version-1-5-1

You can upgrade with pip as usual:

```
pip install -U scikit-learn
```

The conda-forge builds can be installed using:

```
conda install -c conda-forge scikit-learn
```

Thanks to everyone who contributed to this release !

### 1.5.0 — Scikit-learn 1.5.0

- Date: 2024-05-21
- Version: 1.5.0
- Original notes: https://github.com/scikit-learn/scikit-learn/releases/tag/1.5.0
- Permalink: https://whatsnew.fyi/product/scikit-learn/releases/1.5.0

We're happy to announce the 1.5.0 release.

You can read the release highlights under https://scikit-learn.org/stable/auto_examples/release_highlights/plot_release_highlights_1_5_0.html and the long version of the change log under https://scikit-learn.org/stable/whats_new/v1.5.html

This version supports Python versions 3.9 to 3.12.

You can upgrade with pip as usual:

```
pip install -U scikit-learn
```

The conda-forge builds can be installed using:

```
conda install -c conda-forge scikit-learn
```