PDM Files

Features & Improvements

• Explain missing lockfile groups and provide group-selection recovery guidance when installing, syncing, or updating groups. (#2682)
• Allow package-specific overrides for exclude-newer resolution limits. (#3809)

Bug Fixes

• Keep the separating comma out of the operator and accept a v prefix when converting Poetry version constraints. (#3860)
• Escape glob characters in the virtualenv lookup prefix, so a project whose directory name contains [ or ] can find its own virtualenv. (#3869)
• Write pyproject.toml and lockfiles atomically to prevent interrupted writes from truncating them. (#3870)
• Resolve the workspace root before making member paths relative, so a root given as a relative path or reached through a symlink no longer raises ValueError. (#3874)
• Replace the destination of an atomic write instead of unlinking it first, so an interrupted write can no longer destroy pyproject.toml or the lockfile. (#3878)
• Report the version part that could not be read, instead of blaming a postrelease for every parse failure. (#3880)
• Keep quoted local paths that contain - when parsing requirements files. (#3885)

Documentation

• Clarify dependency command effects on project declarations, lock metadata, and installed packages in the guide and CLI help. (#2681)