Release 2.0

[rickeylev]

Tracking issue for the 2.0 release

2.0 breaking changes

There are 5 changes we expect to be disruptive:

1. On Windows symlinks are required. Add startup --windows_enable_symlinks to your .bazelrc and enable Windows developer mode
2. Windows: lite venvs are created for binaries/tests
3. Windows and --build_python_zip: The --build_python_zip flag is ignored. Use the py_zipapp_* rules instead.
4. For cross-building using pip.parse.experimental_index_url: you must now explicitly list the desired cross-built platforms using pip.parse.target_platforms
5. When searching for packages in indexes the one specified with --index-url will be searched after the ones specified via --extra-index-url when using the bazel downloader.

See the 2.0.0 changelog for more information

rc0

• Update change log, version markers chore: update changelog, version markers, for 2.0 release #3689
• Enable experimental_index_url by default feat!(pypi): enable bazel downloader by default #3691
• Create 2.0 branch
• backport chore: populate 2.0 for VERSION_NEXT_FEATURE for py_wheel add_path_prefix #3703
• Tag 2.0.0-rc0

rc1

• Backport fix(sphinxdocs): update MODULE.bazel to depend on a released version #3704
• Backport chore: have no-matching-distribution error message hint about target_platforms vs requirements_by_platform #3701
• Tag 2.0.0-rc1

rc2

• backport sphinxdocs: remove local rules_python dev overrides #3705
• tag 2.0.0-rc2

rc3

• backport fix(pypi): skip index lookups when all package overrides are specified #3710
• backport fix(pypi): correctly write the used facts back #3719
• backport fix(pypi): build the environment on the fly #3720
• Tag 2.0.0-rc3

rc4

• PR and backport for the patch in enable_pipstar=True breaks extracting wheels when no python interpreter is present #3712

Final release

• Tag 2.0 final

[aignas]

I'd like to enable experimental index url by default in that release, so let me see if I can do something tomorrow. It should be a reasonably small change, so the diff won't be too invasive.

[aignas]

PTAL: #3691

[rickeylev]

3691 Approved and queued for merged

[rickeylev]

2.0 branch created.

@aignas did you want to block release on the bug reported in slack? If so, how long? https://bazelbuild.slack.com/archives/CA306CEV6/p1775853239774449

[aignas]

I am not sure if it is a bug, I'm OK to release rc0.

[rickeylev]

2.0.0-rc0 tagged, pending BCR: bazelbuild/bazel-central-registry#8401

[aignas]

Maybe we should backport the error message pr #3701. But let's see if we hear more from people.

[aignas]

It seems that we'll need to set a non-zero version for sphinxdocs.

[rickeylev]

Backported 3704 and 3701. rc1 tagged

[rickeylev]

Looks like there's another issue with the sphinxdocs bcr config. I'll have a look tonight.