release: bump version to 1.4.0

[radoering]

Resolves: #7357

Added

• Add a modern installer (installer.modern-installation) for faster installation of packages and independence from pip (#6205).
• Add support for Private :: trove classifiers (#7271).
• Add the version of poetry in the @generated comment at the beginning of the lock file (#7339).
• Add support for virtualenvs.prefer-active-python when running poetry new and poetry init (#7100).

Changed

• Deprecate the old installer, i.e. setting experimental.new-installer to false (#7358).
• Remove unused platform field from cached package info and bump the cache version (#7304).
• Extra dependencies of the root project are now sorted in the lock file (#7375).
• Remove upper boundary for importlib-metadata dependency (#7434).
• Validate path dependencies during use instead of during construction (#6844).
• Remove the deprecated repository modules (#7468).

Fixed

• Fix an issue where an unconditional dependency of an extra was not installed in specific environments (#7175).
• Fix an issue where a pre-release of a dependency was chosen even if a stable release fulfilled the constraint (#7225, #7236).
• Fix an issue where HTTP redirects were not handled correctly during publishing (#7160).
• Fix an issue where poetry check did not handle the -C, --directory option correctly (#7241).
• Fix an issue where the subdirectory information of a git dependency was not written to the lock file (#7367).
• Fix an issue where the wrong Python version was selected when creating an virtual environment (#7221).
• Fix an issue where packages that should be kept were uninstalled when calling poetry install --sync (#7389).
• Fix an issue where an incorrect value was set for sys.argv[0] when running installed scripts (#6737).
• Fix an issue where hashes in direct_url.json files were not written according to the specification (#7475).
• Fix an issue where poetry commands failed due to special characters in the path of the project or virtual environment (#7471).
• Fix an issue where poetry crashed with a JSONDecodeError when running a Python script that produced certain warnings (#6665).

Docs

• Add advice on how to maintain a poetry plugin (#6977).
• Update tox examples to comply with the latest tox release (#7341).
• Mention that the poetry export can export constraints.txt files (#7383).
• Add clarifications for moving configuration files (#6864).

poetry-core (1.5.1)

• Improve marker handling (#528, #534, #530, #546, #547).
• Validate whether dependencies referenced in extras are defined in the main dependency group (#542).
• Poetry no longer generates a setup.py file in sdists by default (#318).
• Fix an issue where trailing newlines were allowed in tool.poetry.description (#505).
• Fix an issue where the name of the data folder in wheels was not normalized (#532).
• Fix an issue where the order of entries in the RECORD file was not deterministic (#545).
• Fix an issue where zero padding was not correctly handled in version comparisons (#540).
• Fix an issue where sdist builds did not support multiple READMEs (#486).

poetry-plugin-export (^1.3.0)

• Fix an issue where the export failed if there was a circular dependency on the root package (#118).

[radoering]

I just encounterd a performance regression. I'll take a deeper look later.

Update: See python-poetry/poetry-core#556.

[radoering]

Performance issue resolved, no blockers anymore, ready for review. 😄

[adriangb]

Looking forward to this release!

[biegelmeyer]

Any ideas when this version will be released?

[radoering]

potential blocker: #7560

[neersighted]

LGTM; haven't had time to work on the blog post yet -- does it still need a helping hand?

[radoering]

IMO, it's ready for review. However, the preview fails. I could use a helping hand there. (I don't even know if it's relevant for production or if it's only the preview.)

[github-actions]

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