Python
/
uv
mirror of https://github.com/astral-sh/uv
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Updates to the 0.9.0 changelog (#16168)

This commit is contained in:
Zanie Blue 2025-10-07 19:08:29 -05:00 committed by GitHub
parent 39b6886536
commit 09b004c7bc
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
1 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
CHANGELOG.md
View File

@ -7,12 +7,14 @@
Released on 2025-10-07. Released on 2025-10-07.
### Breaking changes
This breaking release is primarily motivated by the release of Python 3.14, which contains some breaking changes (we recommend reading the ["What's new in Python 3.14"](https://docs.python.org/3/whatsnew/3.14.html) page). uv may use Python 3.14 in cases where it previously used 3.13, e.g., if you have not pinned your Python version and do not have any Python versions installed on your machine. While we think this is uncommon, we prefer to be cautious. We've included some additional small changes that could break workflows. This breaking release is primarily motivated by the release of Python 3.14, which contains some breaking changes (we recommend reading the ["What's new in Python 3.14"](https://docs.python.org/3/whatsnew/3.14.html) page). uv may use Python 3.14 in cases where it previously used 3.13, e.g., if you have not pinned your Python version and do not have any Python versions installed on your machine. While we think this is uncommon, we prefer to be cautious. We've included some additional small changes that could break workflows.
See our [Python 3.14](https://astral.sh/blog/python-3.14) blog post for some discussion of features we're excited about!
There are no breaking changes to [`uv_build`](https://docs.astral.sh/uv/concepts/build-backend/). If you have an upper bound in your `[build-system]` table, you should update it. There are no breaking changes to [`uv_build`](https://docs.astral.sh/uv/concepts/build-backend/). If you have an upper bound in your `[build-system]` table, you should update it.
### Breaking changes
- **Python 3.14 is now the default stable version** - **Python 3.14 is now the default stable version**
The default Python version has changed from 3.13 to 3.14. This applies to Python version installation when no Python version is requested, e.g., `uv python install`. By default, uv will use the system Python version if present, so this may not cause changes to general use of uv. For example, if Python 3.13 is installed already, then `uv venv` will use that version. If no Python versions are installed on a machine and automatic downloads are enabled, uv will now use 3.14 instead of 3.13, e.g., for `uv venv` or `uvx python`. This change will not affect users who are using a `.python-version` file to pin to a specific Python version. The default Python version has changed from 3.13 to 3.14. This applies to Python version installation when no Python version is requested, e.g., `uv python install`. By default, uv will use the system Python version if present, so this may not cause changes to general use of uv. For example, if Python 3.13 is installed already, then `uv venv` will use that version. If no Python versions are installed on a machine and automatic downloads are enabled, uv will now use 3.14 instead of 3.13, e.g., for `uv venv` or `uvx python`. This change will not affect users who are using a `.python-version` file to pin to a specific Python version.