Changed: Upgrade default CPython distributions to 20261009 Added: Officially support Python 3.15. Managed Python 3.15 distributions are now the final 3.15.0 release rather than a release candidate, and the default test command matrix includes 3.15 and 3.15t Fixed: Fix syncing environment plugin requirements on standalone binaries built to forward to pip Fix the test command raising an IndexError w…
Added: Officially support Python 3.15.
Fixed: Revert the extra type parameter added to BuildHookInterface in 1.32.3, which broke plugins that subscripted the interface with a single argument (e.g. BuildHookInterface[MyConfig]) by raising TypeError at import time. BuilderConfig is likewise no longer generic, restoring the pre-1.32.3 plugin interface. Strip spaces around version metadata when using original input for CalVer to keep leadi…
Fixed: Preserve the version string exactly as written in core metadata, so stylized versions such as CalVer 2026.08.10 are no longer stripped of leading zeros. Distribution file names and .dist-info directories continue to use the PEP 440 normalized form.
Fixed: Preserve the version string exactly as written in core metadata, so stylized versions such as CalVer 2026.08.10 are no longer stripped of leading zeros. Distribution file names and .dist-info directories continue to use the PEP 440 normalized form.
Added: Apply context formatting to the lock-filename environment option so fields such as {env_name} and {matrix:...} are resolved when computing the lock file path. Fixed: Consolidate extras and feature resolution into a single code path, fixing regressions where environment and project extras could be dropped or resolved inconsistently, and always validate undefined features. Normalize hyphens i…
Changed: Upgrade default CPython distributions to 20260807 Added: Add the sources environment option, which redirects dependencies to a local path, Git repository, URL, alternate index, or workspace member at install time without altering published metadata. The top-level [tool.hatch.sources] table is an alias for the default environment, environments inherit sources entry by entry, the HATCH_NO_S…
Changed: Bump default core metadata version to 2.5 Add tomlkit as a runtime dependency, which is required to rewrite pyproject.toml when setting a static version Added: The version command can now set a version that is statically defined by the project.version field, updating pyproject.toml in place. Pass --force to allow an explicit downgrade Fixed: Allow the ; private annotation on project.impor…
Fixed Use TemporaryDirectory and pylock*.toml for temporary lock files. Skip injection of ruff extend if a key already exists in ruff.toml. Pass --no-header to uv pip compile in the uv locker so that generated lockfiles are deterministic. Fix env-dependency extras being dropped when a metadata hook is configured and resolve workspace-member extras from the member's own metadata.
Fixed Only rewrite the shebang of a shared script when a Python shebang is present on the first line, preserving binary files and other content verbatim instead of dropping leading bytes.
Changed: The hatch fmt command is now deprecated in favor of the new hatch check command group Migrate HTTP client from httpx to httpx2 Added: Add hatch check command group with subcommands for check code (linting), check fmt (formatting), and check types (type checking) Add hatch check types command for type checking using Pyrefly, with --summarize and --cover flags Add hatch env lock command to…
Fixed Default core metadata version kept at 2.4 until more tools support 2.5
Fix draft release uploads. (#2293)
Fixed: Handle a breaking change in virtualenv by only supporting the latest version and adding python-discovery as a dependency.
Fixed: Fixes hatch shell type error for keep_env. SBOM documentation for including SBOM files in sdist Fixes workspace member detection to properly handle shared path prefixes.
Fixed: Source Date Epoch no longer fails when set to date before 1980.
Added: Env var for keep-env when an exception occurs during environment creation to enable debugging. Fixed: Fix issue with self-referential dependencies not being recognized. Fix incomplete environments created when an exception occurs during creation. Fix dependency-groups not working with when environment is not marked as builder. Change Keyring to take expect repository URL instead of reposito…
Fixed: Properly send informational output to stderr instead of stdout Implement documented support for sbom-files as build data for the wheel build target Fix regression where environments no longer acknowledged the project.optional-dependencies field
Fixed: Handle special characters correctly in path for editable installs. Fix multiple calls to install on sync_dependencies to become a single call. Fix context variable formatting in project dependencies to prevent crashes when using variables like {root:parent:uri} in the [project] section. Fix environment overrides for dependency-groups field to properly support matrix and conditional configur…
Changed: Drop support for Python 3.9 Added: Add sbom-files option and sbom_files build data to the wheel build target for including Software Bill of Materials files.