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conda v4.12.0 Release Notes

Release Date: 2022-03-08 // about 2 years ago

  • ✨ Enhancements

    • ➕ Add support for libmamba integrations. (#11193)

    This is a new experimental and opt-in feature that allows use of the new conda-libmamba-solver for an improved user experience, based on the libmamba community project - the library version of the mamba package manager.

    Please follow these steps to try out the new libmamba solver integration:

    1. Make sure you have conda-libmamba-solver installed in your conda base environment.

    2. Try out the solver using the --experimental-solver=libmamba command line option.

      E.g. with a dry-run to install the scipy pacakge:

       conda create -n demo scipy --dry-run --experimental-solver=libmamba

      Or install in an activated conda environment:

       conda activate my-environment
 conda install scipy --experimental-solver=libmamba
    • ⚡️ Make sure that conda env update -f sets env vars from the referenced yaml file. (#10652)
    • 👌 Improve command line argument quoting, especially for conda run. (#11189)
    • 👍 Allow conda run to work in read-only environments. (#11215)
    • ➕ Add support for prelink_message. (#11123)
    • Added conda.CONDA_SOURCE_ROOT. (#11182)

    🐛 Bug fixes

    • Refactored conda.utils.ensure_comspec_set into conda.utils.get_comspec. (#11168)
    • Refactored conda.cli.common.is_valid_prefix into conda.cli.common.validate_prefix. (#11172)
    • Instantiate separate S3 session for thread-safety. (#11038)
    • 🔄 Change overly verbose info log to debug. (#11260)
    • ✂ Remove five.py and update metaclass definitions. (#11267)
    • ✂ Remove unnecessary conditional in setup.py (#11013)

    📄 Docs

    • Clarify on AIE messaging in download.rst. (#11221)
    • 🛠 Fix conda environment variable echo, update example versions. (#11237)
    • 🛠 Fixed link in docs. (#11268)
    • ⚡️ Update profile examples. (#11278)
    • 🛠 Fix typos. (#11070)
    • Document conda run command. (#11299)

    Other

    • ➕ Added macOS to continuous integration. (#10875)
    • ➕ Added ability to build per-pullrequest review builds. (#11135)
    • 👌 Improved subprocess handling on Windows. (#11179)
    • Add CONDA_SOURCE_ROOT env var. (#11182)
    • Automatically check copyright/license disclaimer & encoding pragma. (#11183)
    • Development environment per Python version. (#11233)
    • ➕ Add concurrency group to cancel GHA runs on repeated pushes to branch/PR. (#11258)
    • Only run GHAs on non-forks. (#11265)

    Contributors

    • @opoplawski
    • @FaustinCarter
    • @jaimergp
    • @rhoule-anaconda
    • @jezdez
    • @hajapy
    • @erykoff
    • @uwuvalon
    • @kenodegard
    • @manics
    • @NaincyKumariKnoldus
    • @autotmp
    • @yuvipanda
    • @astrojuanlu
    • @marcelotrevisani