v3.13.0

Added:

• Added the ability to store conda build artifacts using the Github Actions provider. To enable, set github_actions: {store_build_artifacts: true} in conda-forge.yml.

• It is possible to set the lifetime of the Github Actions artifacts by setting the the github_actions: {artifact_retention_days: 14} setting in conda-forge.yml to the desired value. The default is 14 days.

• Support for ppc64le on drone CI has been added

• Added support for registering at a custom drone server by adding --drone-endpoint cli argument

• Added explicit check to not upload packages on PR builds.

• Added key github:tooling_branch_name to conda-forge.yml to enable
  setting the default branch for tooling repos.

• The linter will now warn if allowed pyXY selectors are used (e.g. py27, py34, py35, py36). For other versions (e.g. Python 3.8 would be py38), these selectors are silently ignored by conda-build, so the linter will throw an error to prevent situations that might be tricky to debug. We recommend using py and integer comparison instead. Note that py2k and py3k are still allowed.

• Added support for self-hosted github actions runners

  In conda-forge.yml, add github_actions: self_hosted: true to
  enable self-hosted github actions runner. Note that self-hosted
  runners are currently configured to run only on push events
  and pull requests will not be built.

• Allow multiple providers per platform

  In conda-forge.yml, add provider: <platform>: ['ci_1', 'ci_2']
  to configure multiple providers per platform.

Changed:

• Uploads are now allowed when building with mambabuild!
• Azure build artifacts are now zipped before being uploaded, with some cache directories and the conda build/host/test environments removed, to make user download smaller and faster.
• A separate Azure build artifact, including only the conda build/host/test environments, is additionally created for failed builds.
• Azure artifact names are now only shortened (uniquely) when necessary to keep the name below 80 characters.
• Updated CircleCI xcode version to 13.0.0 to prevent failures.
• The conda-smithy git repo now uses main as the default branch.
• conda mambabuild is now the default build mode. To opt out of this change set build_with_mambabuild to false in your conda-forge.yml.
• Bump Windows base environment Python version to 3.9
• Support using build-locally.py natively on osx-arm64.

Fixed:

• Azure artifact names are now unique when a job needs to be restarted (#1430).
• Azure artifact uploads for failed builds that failed because of broken symbolic links have now been fixed.
• Test suite now runs correctly on pyyaml 6
• Remove the miniforge installation before building with ./build-locally.py on MacOS so that
  ./build-locally.py can be run more than once without an error regarding an exisiting miniforge installation.

Authors:

• Isuru Fernando
• Matthew R. Becker
• Jaime Rodríguez-Guerra
• Uwe L. Korn
• Ryan Volz
• John Kirkham
• Wolf Vollprecht
• Marius van Niekerk
• Matthias Diener