prefix-dev/pixi v0.51.0

0.51.0 - 2025-08-12

on GitHub

Release Notes

✨ Highlights

Pixi now supports --skip on install which means you can skip the installation of a package.
Which can be useful for things like layering Docker images.

Setting no-build-isolation now affects the order in which PyPI packages are installed.
Packages are installed in that order:

• conda packages in one go
• packages with build isolation in one go
• packages without build isolation installed in the order they are added to no-build-isolation

Pixi build got a lot of improvements, including the ability to use build backends from source.
Starting with this release you can get build backends from conda-forge.
We will release stable versions of the build backends on conda-forge, and we maintain a rolling distribution on the pixi-build-backends channel.
The documentation has been updated to reflect this change.

⚠️ Breaking Change

The environment variable overwriting logic is changed.
Previously, the variables in your own environment would overwrite the variables set in the Pixi manifest.
This is now reversed, meaning that the variables set in the Pixi manifest will overwrite the variables in your own environment.
More info can be found in the documentation.

Added

• Add new configuration options for concurrency and experimental features by @zelosleone in #4223
• Support for loong64 linux by @wszqkzqk in #4163
• Add channels to the build-v1 apis by @baszalmstra in #4249
• Support pip packages for no-build-isolation by @Hofer-Julian in #4247
• Add better logging for build backends by @baszalmstra in #4276
• Add --build, rename --tool to --build_backends by @lucascolley in #4281
• Add support for PIXI_ENVIRONMENT_NAME and PS1 prompt modification by @zelosleone in #4101
• Add the ability to skip install of local source dependencies by @olivier-lacroix in #3092

Changed

• Prevent execution in parent of pixi home directory by @ytausch in #4168
• Add did you mean suggestions for the cmds (built-in + pixi extensions) by @mrswastik-robot in #4058
• Per platform extra options for pixi build configuration by @Hofer-Julian in #4036
• Named args in depends-on by @lucascolley in #4148
• Pass repodata records to build backend by @baszalmstra in #4252
• Extract reporters out of pixi into its own crate by @tdejager in #4266
• Allow using build backends from source by @baszalmstra in #4145
• PyPI requirements.txt format by @lucascolley in #4270
• Upgrade to uv 0.8.20 and get rid of non-async build dispatch calls by @tdejager in #4289
• SourceSpec struct composed of SourceLocationSpec by @lucascolley in #4305

Documentation

• Update documentation on task names by @photex in #4230
• Update docs with pixi-extensions by @mrswastik-robot in #4144
• Mention md-tui support for reading from stdin by @pavelzw in #4268
• Add contributor docs for Python test snapshots by @lucascolley in #4273
• Update documentation and related manifests by @ruben-arts in #4279
• Fix 404 link by @pavelzw in #4295
• Mention glow for viewing markdown in the terminal by @pavelzw in #4288
• Fix typo by @pavelzw in #4306#4309
• Simplify and fix the pixi build getting started by @ruben-arts in #4304

Fixed

• Improve testing speed by using prefix channel by @ruben-arts in #4227
• Pixi-build preview-mode check by @remimimimimi in #4224
• Relative path to package for pixi global by @wolfv in #4200
• Replace syrupy with inline-snapshot by @lucascolley in #4246
• Forward CTRL+C signal to deno_task_shell by @wolfv in #4243
• Override environment variables based on priority by @magentaqin in #3940
• Exclude env key 'PROJECT_ENV' and evaluate referenced variables by @magentaqin in #4275
• Quick Demo example shell quoting by @notpeter in #4285
• Feature activation environment variable priority by @magentaqin in #4282
• Disable JLAP by default by @ruben-arts in #4301

New Contributors

• @magentaqin made their first contribution in #4282
• @notpeter made their first contribution in #4285
• @lsetiawan made their first contribution in #4248
• @Carbonhell made their first contribution in #4263
• @matthewfeickert made their first contribution in #4256
• @wszqkzqk made their first contribution in #4163
• @photex made their first contribution in #4230

Download pixi 0.51.0