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March 2025 Releases

· 2 min read
Ken Odegard
Ken Odegard
Conda Maintainer

The March 2025 releases included updates to conda, conda-build, conda-libmamba-solver, conda-index, and constructor! 🎉 All of these have been released to both main and conda-forge channels.

Changes in conda 25.3.0/25.3.1​

To update conda to the latest version, run:

conda install -n base conda=25.3.1

Notable Changes:

  • Add support for Python 3.13.
  • Refactor CMD's activation process to use a static shell script instead of a dynamic temporary script. This resolves an issue where using conda activate would fail when Windows AppLocker script execution restrictions were enabled.
  • conda 25.3.0 is a deprecation release (see CEP-9 for details) so watch out for deprecated features (previously marked as pending deprecation), many of these deprecated features will be removed in conda 25.9.0.

Check out the full changelog for more: 25.3.0/25.3.1

Changes in conda-build 25.3.0/25.3.1/25.3.2​

To update conda-build to the latest version, run:

conda install -n base conda-build=25.3.2

Notable Changes:

  • Add v0 recipe option build.python_version_independent to support building ABI3 for one CPython version and using the package in any later version.
  • Add cdt_arch and cdt_name as used vars when cdt jinja function is used.

Check out the full changelog for more: 25.3.0/25.3.1/25.3.2

Changes in conda-libmamba-solver 25.3.0​

To update conda-libmamba-solver to the latest version, run:

conda install -n base conda-libmamba-solver=25.3.0

Check out the full changelog for more: 25.3.0

Changes in conda-index 0.6.0​

To update conda-index to the latest version, run:

conda install -n base conda-index=0.6.0

Notable Changes:

  • Add support for sharded repodata in accordance with CEP-16.

Check out the full changelog for more: 0.6.0

Changes in constructor 3.11.2/3.11.3​

To update constructor to the latest version, run:

conda install -n base constructor=3.11.3

Check out the full changelog for more: 3.11.2/3.11.3

We ❤️ Our Community​

Altogether, we had 4 new contributors this release cycle; thank you to all of our open source community members for helping making these improvements possible.