Added

• Poetry now supports dependency groups. (#4260)
• The install command now supports a --sync option to synchronize the environment with the lock file. (#4336)

Changed

• Improved the way credentials are retrieved to better support keyring backends. (#4086)
• The --remove-untracked option of the install command is now deprecated in favor of the new --sync option. (#4336)
• The user experience when installing dependency groups has been improved. (#4336)

Fixed

• Fixed performance issues when resolving dependencies. (#3839)
• Fixed an issue where transitive dependencies of directory or VCS dependencies were not installed or otherwise removed. (#4202)
• Fixed the behavior of the init command in non-interactive mode. (#2899)
• Fixed the detection of the system environment when the setting virtualenvs.create is deactivated. (#4329)
• Fixed the display of possible solutions for some common errors. (#4332)

This release is the first testing release of the upcoming 1.2.0 version.

It drops support for Python 2.7 and 3.5.

Added

• Poetry now supports a plugin system to alter or expand Poetry's functionality. (#3733)
• Poetry now supports PEP 610. (#3876)
• Several configuration options to better control the way virtual environments are created are now available. (#3157, #3711).
• The new command now supports namespace packages. (#2768)
• The add command now supports the --editable option to add packages in editable mode. (#3940)

Changed

• Python 2.7 and 3.5 are no longer supported. (#3405)
• The usage of the get-poetry.py script is now deprecated and is replaced by the install-poetry.py script. (#3706)
• Directory dependencies are now in non-develop mode by default. (poetry-core#98)
• Improved support for PEP 440 specific versions that do not abide by semantic versioning. (poetry-core#140)
• Improved the CLI experience and performance by migrating to the latest version of Cleo. (#3618)
• Packages previously considered as unsafe (pip, setuptools, wheels and distribute) can now be managed as any other package. (#2826)
• The new command now defaults to the Markdown format for README files. (#2768)

Fixed

• Fixed an error where command line options were not taken into account when using the run command. (#3618)
• Fixed an error in the way custom repositories were resolved. (#3406)

Fixed

• Fixed an issue where non-sha256 hashes were not checked. (#4529)

Fixed

• Fixed a security issue where file hashes were not checked prior to installation. (#4420, #4444, python-poetry/poetry-core#193)
• Fixed the detection of the system environment when the setting virtualenvs.create is deactivated. (#4507)
• Fixed an issue where unsafe parameters could be passed to git commands. (python-poetry/poetry-core#203)
• Fixed an issue where the wrong git executable could be used on Windows. (python-poetry/poetry-core#205)

Fixed

• Fixed an error with repository prioritization when specifying secondary repositories. (#4241)
• Fixed the detection of the system environment when the setting virtualenvs.create is deactivated. (#4330, #4407)
• Fixed the evaluation of relative path dependencies. (#4246)
• Fixed environment detection for Python 3.10 environments. (#4387)
• Fixed an error in the evaluation of in/not in markers (python-poetry/poetry-core#189)

Note: Lock files might need to be regenerated for the first fix below to take effect.
You can use poetry lock to do so without the --no-update option.

Changed

• This release is compatible with the install-poetry.py installation script to ease the migration path from 1.1 releases to 1.2 releases. (#4192)

Fixed

• Fixed an issue where transitive dependencies of directory or VCS dependencies were not installed or otherwise removed. (#4203)
• Fixed an issue where the combination of the --tree and --no-dev options for the show command was still displaying development dependencies. (#3992)

Fixed

• Fixed export format for path dependencies. (#3121)
• Fixed errors caused by environment modification when executing some commands. (#3253)
• Fixed handling of wheel files with single-digit versions. (#3338)
• Fixed an error when handling single-digit Python markers. (poetry-core#156)
• Fixed dependency markers not being properly copied when changing the constraint leading to resolution errors. (poetry-core#163)
• Fixed an error where VCS dependencies were always updated. (#3947)
• Fixed an error where the incorrect version of a package was locked when using environment markers. (#3945)

Fixed

• Fixed an error in the export command when no lock file existed and a verbose flag was passed to the command. (#3310)
• Fixed an error where the pyproject.toml was not reverted when using the add command. (#3622)
• Fixed errors when using non-HTTPS indices. (#3622)
• Fixed errors when handling simple indices redirection. (#3622)
• Fixed errors when trying to handle newer wheels by using the latest version of poetry-core and packaging. (#3677)
• Fixed an error when using some versions of poetry-core due to an incorrect import. (#3696)

Added

• Added installer.parallel boolean flag (defaults to true) configuration to enable/disable parallel execution of operations when using the new installer. (#3088)

Changed

• When using system environments as an unprivileged user, user site and bin directories are created if they do not already exist. (#3107)

Fixed

• Fixed editable installation of poetry projects when using system environments. (#3107)
• Fixed locking of nested extra activations. If you were affected by this issue, you will need to regenerate the lock file using poetry lock --no-update. (#3229)
• Fixed prioritisation of non-default custom package sources. (#3251)
• Fixed detection of installed editable packages when non-poetry managed .pth file exists. (#3210)
• Fixed scripts generated by editable builder to use valid import statements. (#3214)
• Fixed recursion error when locked dependencies contain cyclic dependencies. (#3237)
• Fixed propagation of editable flag for VCS dependencies. (#3264)

Changed

• Python version support deprecation warning is now written to stderr. (#3131)

Fixed

• Fixed KeyError when PATH is not defined in environment variables. (#3159)
• Fixed error when using config command in a directory with an existing pyproject.toml without any Poetry configuration. (#3172)
• Fixed incorrect inspection of package requirements when same dependency is specified multiple times with unique markers. (#3147)
• Fixed show command to use already resolved package metadata. (#3117)
• Fixed multiple issues with export command output when using requirements.txt format. (#3119)

Changed

• Dependency installation of editable packages and all uninstall operations are now performed serially within their corresponding priority groups. (#3099)
• Improved package metadata inspection of nested poetry projects within project path dependencies. (#3105)

Fixed

• Fixed export of requirements.txt when project dependency contains git dependencies. (#3100)

Added

• Added --no-update option to lock command. (#3034)

Fixed

• Fixed resolution of packages with missing required extras. (#3035)
• Fixed export of requirements.txt dependencies to include development dependencies. (#3024)
• Fixed incorrect selection of unsupported binary distribution formats when selecting a package artifact to install. (#3058)
• Fixed incorrect use of system executable when building package distributions via build command. (#3056)
• Fixed errors in init command when specifying --dependency in non-interactive mode when a pyproject.toml file already exists. (#3076)
• Fixed incorrect selection of configured source url when a publish repository url configuration with the same name already exists. (#3047)
• Fixed dependency resolution issues when the same package is specified in multiple dependency extras. (#3046)

Changed

• The init command will now use existing pyproject.toml if possible (#2448).
• Error messages when metadata information retrieval fails have been improved (#2997).

Fixed

• Fixed parsing of version constraint for rc prereleases (#2978).
• Fixed how some metadata information are extracted from setup.cfg files (#2957).
• Fixed return codes returned by the executor (#2981).
• Fixed whitespaces not being accepted for the list of extras when adding packages (#2985).
• Fixed repositories specified in the pyproject.toml file not being taken into account for authentication when downloading packages (#2990).
• Fixed permission errors when installing the root project if the site-packages directory is not writeable (#3002).
• Fixed environment marker propagation when exporting to the requirements.txt format (#3002).
• Fixed errors when paths in run command contained spaces (#3015).

Changed

• The virtualenvs.in-project setting will now always be honored, if set explicitly, regardless of the presence of a .venv directory (#2771).
• Adding packages already present in the pyproject.toml file will no longer raise an error (#2886).
• Errors when authenticating against custom repositories will now be logged (#2577).

Fixed

• Fixed an error on Python 3.5 when resolving URL dependencies (#2954).
• Fixed the dependency option of the init command being ignored (#2587).
• Fixed the show command displaying erroneous information following the changes in the lock file format (#2967).
• Fixed dependency resolution errors due to invalid python constraints propagation (#2968).

Changed

• When running under Python 2.7 on Windows, install command will be limited to one worker to mitigate threading issue (#2941).

Changed

• Improved the error reporting when HTTP error are encountered for legacy repositories (#2459).
• When displaying the name of packages retrieved from remote repositories, the original name will now be used (#2305).
• Failed package downloads will now be retried on connection errors (#2813).
• Path dependencies will now be installed as editable only when develop option is set to true (#2887).

Fixed

• Fixed the detection of the type of installed packages (#2722).
• Fixed deadlocks when installing packages on systems not supporting non-ascii characters (#2721).
• Fixed handling of wildcard constraints for packages with prereleases only (#2821).
• Fixed dependencies of some packages not being discovered by ensuring we use the PEP-516 backend if specified (#2810).
• Fixed recursion errors when retrieving extras (#2787).
• Fixed PyPI always being displayed when publishing even for custom repositories (#2905).
• Fixed handling of packages extras when resolving dependencies (#2887).

Changed

• Added support for build scripts without the setup.py file generation in the editable builder (#2718).

Fixed

• Fixed an error occurring when using older lock files (#2717).

Changed

• Virtual environments will now exclusively be built with virtualenv (#2666).
• Support for Python 2.7 and 3.5 is now officially deprecated and a warning message will be displayed (#2683).
• Improved metadata inspection of packages by using the PEP-517 build system (#2632).

Fixed

• Fixed parallel tasks not being cancelled when the installation is interrupted or has failed (#2656).
• Fixed an error where the editable builder would not expose all packages (#2664).
• Fixed an error for Python 2.7 when a file could not be downloaded in the installer (#2709).
• Fixed the lock file content-hash value not being updated when using the add and remove commands (#2710).
• Fixed incorrect resolution errors being raised for packages with python requirements (#2712).
• Fixed an error causing the build log messages to no longer be displayed (#2715).

Added

• New installer which provides a faster and better experience (#2595).

Fixed

• Fixed resolution error when handling duplicate dependencies with environment markers (#2622).
• Fixed erroneous resolution errors when resolving packages to install (#2625).
• Fixed errors when detecting installed editable packages (#2602).

Note that lock files generated with this release are not compatible with previous releases of Poetry.

Added

• The install command now supports a --remove-untracked option to ensure only packages from the lock file are present in the environment (#2172).
• Some errors will now be provided with possible solutions and links to the documentation (#2396).

Changed

• Editable installations of Poetry projects have been improved and are now faster (#2360).
• Improved the accuracy of the dependency resolver in case of dependencies with environment markers (#2361)
• Environment markers of dependencies are no longer stored in the lock file (#2361).
• Improved the way connection errors are handled when publishing (#2285).

Fixed

• Fixed errors when handling duplicate dependencies with environment markers (#2342).
• Fixed the detection of installed packages (#2360).

This release must be downloaded via the get-poetry.py script and not via the self update command.

Added

• Added a new --dry-run option to the publish command (#2199).

Changed

• The core features of Poetry have been extracted in to a separate library: poetry-core (#2212).
• The build backend is no longer poetry.masonry.api but poetry.core.masonry.api which requires poetry-core>=1.0.0a5 (#2212).
• The exceptions are now beautifully displayed in the terminal with various level of details depending on the verbosity (2230).

Changed

• The lock files are now versioned to ease transitions for lock file format changes, with warnings being displayed on incompatibility detection (#2695).
• The init and new commands will now provide hints on invalid given licenses (#1634).

Fixed

• Fixed error messages when the authors specified in the pyproject.toml file are invalid (#2525).
• Fixed empty .venv directories being deleted (#2064).
• Fixed the shell command for tcsh shells (#2583).
• Fixed errors when installing directory or file dependencies in some cases (#2582).

Fixed

• Fixed an issue where packages from custom indices where continuously updated (#2525).
• Fixed errors in the way Python environment markers were parsed and generated (#2526).

Fixed

• Fixed a possible error when installing the root package (#2505).
• Fixed an error where directory and VCS dependencies were not installed (#2505).

Fixed

• Fixed an error when trying to execute some packages setup.py file (#2349).

Changed

• The self update command has been updated in order to handle future releases of Poetry (#2429).

Fixed

• Fixed an error were a new line was not written when displaying the virtual environment's path with env info (#2196).
• Fixed a misleading error message when the packages property was empty (#2265).
• Fixed shell detection by using environment variables (#2147).
• Fixed the removal of VCS dependencies (#2239).
• Fixed generated wheel ABI tags for Python 3.8 (#2121).
• Fixed a regression when building stub-only packages (#2000).
• Fixed errors when parsing PEP-440 constraints with whitespace (#2347).
• Fixed PEP 508 representation of VCS dependencies (#2349).
• Fixed errors when source distributions were read-only (#1140).
• Fixed dependency resolution errors and inconsistencies with directory, file and VCS dependencies (#2398).
• Fixed custom repositories information not being properly locked (#2484).

Fixed

• Fixed an error when building distributions if the git executable was not found (#2105).
• Fixed various errors when reading Poetry's TOML files by upgrading tomlkit.

Fixed

• Fixed the PyPI URL used when installing packages (#2099).
• Fixed errors when the author's name contains special characters (#2006).
• Fixed VCS excluded files detection when building wheels (#1947).
• Fixed packages detection when building sdists (#1626).
• Fixed the local .venv virtual environment not being displayed in env list (#1762).
• Fixed incompatibilities with the most recent versions of virtualenv (#2096).
• Fixed Poetry's own vendor dependencies being retrieved when updating dependencies (#1981).
• Fixed encoding of credentials in URLs (#1911).
• Fixed url constraints not being accepted in multi-constraints dependencies (#2035).
• Fixed an error where credentials specified via environment variables were not retrieved (#2061).
• Fixed an error where git dependencies referencing tags were not locked to the corresponding commit (#1948).
• Fixed an error when parsing packages setup.py files (#2041).
• Fixed an error when parsing some git URLs (#2018).

Fixed

• Fixed an error which caused the configuration environment variables (like POETRY_HTTP_BASIC_XXX_PASSWORD) to not be used (#1909).
• Fixed an error where the --help option was not working (#1910).
• Fixed an error where packages from private indices were not decompressed properly (#1851).
• Fixed an error where the version of some PEP-508-formatted wheel dependencies was not properly retrieved (#1932).
• Fixed internal regexps to avoid potential catastrophic backtracking errors (#1913).
• Fixed performance issues when custom indices were defined in the pyproject.toml file (#1892).
• Fixed the get_requires_for_build_wheel() function of masonry.api which wasn't returning the proper result (#1875).

Fixed

• Reverted a previous fix (#1796) which was causing errors for projects with file and/or directory dependencies (#1865).

Fixed

• Fixed an error in env use where the wrong Python executable was being used to check compatibility (#1736).
• Fixed an error where VCS dependencies were not properly categorized as development dependencies (#1725).
• Fixed an error where some shells would no longer be usable after using the shell command (#1673).
• Fixed an error where explicitly included files where not included in wheel distributions (#1750).
• Fixed an error where some Git dependencies url were not properly parsed (#1756).
• Fixed an error in the env commands on Windows if the path to the executable contained a space (#1774).
• Fixed several errors and UX issues caused by keyring on some systems (#1788).
• Fixed errors when trying to detect installed packages (#1786).
• Fixed an error when packaging projects where Python packages were not properly detected (#1592).
• Fixed an error where local file dependencies were exported as editable when using the export command (#1840).
• Fixed the way environment markers are propagated and evaluated when resolving dependencies (#1829, #1789).
• Fixed an error in the PEP-508 compliant representation of directory and file dependencies (#1796).
• Fixed an error where invalid virtual environments would be silently used. They will not be recreated and a warning will be displayed (#1797).
• Fixed an error where dependencies were not properly detected when reading the setup.py file in some cases (#1764).

Added

• Added an export command to export the lock file to other formats (only requirements.txt is currently supported).
• Added a env info command to get basic information about the current environment.
• Added a env use command to control the Python version used by the project.
• Added a env list command to list the virtualenvs associated with the current project.
• Added a env remove command to delete virtualenvs associated with the current project.
• Added support for POETRY_HOME declaration within get-poetry.py.
• Added support for declaring a specific source for dependencies.
• Added support for disabling PyPI and making another repository the default one.
• Added support for declaring private repositories as secondary.
• Added the ability to specify packages on a per-format basis.
• Added support for custom urls in metadata.
• Full environment markers are now supported for dependencies via the markers property.
• Added the ability to specify git dependencies directly in add, it no longer requires the --git option.
• Added the ability to specify path dependencies directly in add, it no longer requires the --path option.
• Added support for url dependencies (#1260).
• Publishing to PyPI using API tokens is now supported (#1275).
• Licenses can now be identified by their full name.
• Added support for custom certificate authority and client certificates for private repositories.
• Poetry can now detect and use Conda environments.

Changed

• Slightly changed the lock file, making it potentially incompatible with previous Poetry versions.
• The cache:clear command has been renamed to cache clear.
• The debug:info command has been renamed to debug info.
• The debug:resolve command has been renamed to debug resolve.
• The self:update command has been renamed to self update.
• Changed the way virtualenvs are stored (names now depend on the project's path).
• The --git option of the add command has been removed.
• The --path option of the add command has been removed.
• The add command will now automatically select the latest prerelease if only prereleases are available.
• The add command can now update a dependencies if an explicit constraint is given (#1221).
• Removed the --develop option from the install command.
• Improved UX when searching for packages in the init command.
• The shell command has been improved.
• The poetry run command now uses os.execvp() rather than spawning a new subprocess.
• Specifying dependencies with allows-prereleases in the pyproject.toml file is deprecated for consistency with the add command. Use allow-prereleases instead.
• Improved the error message when the lock file is invalid.
• Whenever Poetry needs to use the "system" Python, it will now call sys.executable instead of the python command.
• Improved the error message displayed on conflicting Python requirements (#1681).
• Improved the site-packages directory detection (#1683).

Fixed

• Fixed transitive extra dependencies being removed when updating a specific dependency.
• The pyproject.toml configuration is now properly validated.
• Fixed installing Poetry-based packages breaking with pip.
• Fixed packages with empty markers being added to the lock file.
• Fixed invalid lock file generation in some cases.
• Fixed local version identifier handling in wheel file names.
• Fixed packages with invalid metadata triggering an error instead of being skipped.
• Fixed the generation of invalid lock files in some cases.
• Git dependencies are now properly locked to a specific revision when specifying a branch or a tag.
• Fixed the behavior of the ~= operator.
• Fixed dependency resolution for conditional development dependencies.
• Fixed generated dependency constraints when they contain inequality operators.
• The run command now properly handles the -- separator.
• Fixed some issues with path dependencies being seen as git dependencies.
• Fixed various issues with the way extra markers in dependencies were handled.
• Fixed the option conflicts in the run command.
• Fixed wrong latest version being displayed when executing show -l.
• Fixed TooManyRedirects errors being raised when resolving dependencies.
• Fixed custom indices dependencies being constantly updated.
• Fixed the behavior of the --install option of the debug resolve command.
• Fixed an error in show when using the -o/--outdated option.
• Fixed PEP 508 url dependency handling.
• Fixed excluded files via the exclude being included in distributions.
• Fixed an error in env use if the virtualenvs.in-project setting is activated (#1682)
• Fixed handling of empty and any markers in unions of markers (#1650).

Fixed

• Fixed dependency resolution with circular dependencies.
• Fixed encoding errors when reading files on Windows. (Thanks to @vlcinsky)
• Fixed unclear errors when executing commands in virtual environments. (Thanks to @Imaclean74)
• Fixed handling of .venv when it's not a directory. (Thanks to @mpanarin)

Fixed

• Fixed packages with no hashes retrieval for legacy repositories.
• Fixed multiple constraints for dev dependencies.
• Fixed dependency resolution failing on badly formed package versions instead of skipping.
• Fixed permissions of built wheels.

Fixed

• Fixed an AttributeError in the editable builder.
• Fixed resolution of packages with only Python 3 wheels and sdist when resolving for legacy repositories.
• Fixed non-sha256 hashes retrieval for legacy repositories.

Fixed

• Fixed root package installation for pure Python packages.

Fixed

• Fixed root package installation with pip>=19.0.
• Fixed packages not being removed after using the remove command.

Fixed

• Fix lock idempotency.
• Fix markers evaluation for python_version with precision < 3.
• Fix permissions of the dist-info files.
• Fix prepare_metadata_for_build_wheel() missing in the build backend.
• Fix metadata inconsistency between wheels and sdists.
• Fix parsing of platform_release markers.
• Fix metadata information when the project has git dependencies.
• Fix error reporting when publishing fails.
• Fix retrieval of extras_require in some setup.py files. (Thanks to @asodeur)
• Fix wheel compression when building. (Thanks to @ccosby)
• Improve retrieval of information for packages with two python specific wheels.
• Fix request authentication when credentials are included in URLs. (Thanks to @connorbrinton)

Fixed

• Fixed the way packages information are retrieved for legacy repositories.
• Fixed an error when adding packages with invalid versions.
• Fixed an error when resolving directory dependencies with no sub dependencies.
• Fixed an error when locking packages with no description.
• Fixed path resolution for transitive file dependencies.
• Fixed multiple constraints handling for the root package.
• Fixed exclude functionality on case sensitive systems.

Fixed

• Fixed run not executing scripts.
• Fixed environment detection.
• Fixed handling of authentication for legacy repositories.

Fixed

• Fixed executables from outside the virtualenv not being accessible.
• Fixed a possible error when building distributions with the exclude option.
• Fixed the run command for namespaced packages.
• Fixed errors for virtualenvs with spaces in their path.
• Fixed prerelease versions being selected with the add command.

Fixed

• Fixed permission errors when adding/removing git dependencies on Windows.
• Fixed Pool not raising an exception when no package could be found.
• Fixed reading bz2 source distribution.
• Fixed handling of arbitrary equals in InstalledRepository.

Fixed

• Fixed reading of some setup.py files.
• Fixed a KeyError when getting information for packages which require reading setup files.
• Fixed the building of wheels with C extensions and an src layout.
• Fixed extras being selected when resolving dependencies even when not required.
• Fixed performance issues when packaging projects if a lot of files were excluded.
• Fixed installation of files.
• Fixed extras not being retrieved for legacy repositories.
• Fixed invalid transitive constraints raising an error for legacy repositories.

Changed

• Poetry will now try to read, without executing, setup files (setup.py and/or setup.cfg) if the egg_info command fails when resolving dependencies.

Fixed

• Fixed installation of directory dependencies.
• Fixed handling of dependencies with a not in marker operator.
• Fixed support for VCS dependencies.
• Fixed the exclude property not being respected if no VCS was available.

Fixed

• Fixed installation of Poetry git dependencies with a build system.
• Fixed possible errors when resolving dependencies for specific packages.
• Fixed handling of Python versions compatibility.
• Fixed the dependency resolver picking up unnecessary dependencies due to not using the python_full_version marker.
• Fixed the Python-Requires metadata being invalid for single Python versions.

Fixed

• Fixed possible error on some combinations of markers.
• Fixed venv detection so that it only uses VIRTUAL_ENV to detect activated virtualenvs.

Fixed

• Fixed the --no-dev option in install not working properly.
• Fixed prereleases being selected even if another constraint conflicted with them.
• Fixed an error when installing current package in development mode if the generated setup.py had special characters.
• Fixed an error in install for applications not following a known structure.
• Fixed an error when trying to retrieve the current environment.
• Fixed debug:info not showing the current project's virtualenv.

Fixed

• Fixed an error when installing from private repositories.
• Fixed an error when trying to move the lock file on Python 2.7.

Fixed

• Fixed an error when license is unspecified.

Added

• Added a brand new installer.
• Added support for multi-constraints dependencies.
• Added a cache version system.
• Added a --lock option to update to only update the lock file without executing operations. (Thanks to @greysteil)
• Added support for the Project-URL metadata.
• Added support for optional scripts.
• Added a --no-dev option to show. (Thanks to @rodcloutier)

Changed

• Improved virtualenv detection and management.
• Wildcard python dependencies are now equivalent to ~2.7 || ^3.4.
• Changed behavior of the resolver for conditional dependencies.
• The install command will now install the current project in editable mode.
• The develop command is now deprecated in favor of install.
• Improved the check command.
• Empty passwords are now supported when publishing.

Fixed

• Fixed a memory leak in the resolver.
• Fixed a recursion error on duplicate dependencies with only different extras.
• Fixed handling of extras.
• Fixed duplicate entries in both sdist and wheel.
• Fixed excluded files appearing in the package_data of the generated setup.py.
• Fixed transitive directory dependencies installation.
• Fixed file permissions for configuration and authentication files.
• Fixed an error in cache:clear for Python 2.7.
• Fixed publishing for the first time with a prerelease.

Fixed

• Fixed a recursion error with circular dependencies.
• Fixed the config command setting incorrect values for paths.
• Fixed an OSError on Python >= 3.5 for git dependencies with recursive symlinks.
• Fixed the possible deletion of system paths by cache:clear.
• Fixed a performance issue when parsing the lock file by upgrading tomlkit.

Fixed

• Fixed wrong wheel being selected when resolving dependencies.
• Fixed an error when publishing.
• Fixed an error when building wheels with the packages property set.
• Fixed single value display in config command.

Changed

• Poetry now only uses TOML Kit for TOML files manipulation.
• Improved dependency resolution debug information.

Fixed

• Fixed missing dependency information for some packages.
• Fixed handling of single versions when packaging.
• Fixed dependency information retrieval from .zip and .bz2 archives.
• Fixed searching for and installing packages from private repositories with authentication. (Thanks to @MarcDufresne)
• Fixed a potential error when checking the pyproject.toml validity. (Thanks to @ojii)
• Fixed the lock file not tracking the extras information from pyproject.toml. (Thanks to @cauebs)
• Fixed missing trailing slash in the Simple API urls for private repositories. (Thanks to @bradsbrown)

Fixed

• Fixed missing dependencies when resolving in some cases.
• Fixed path dependencies not working in dev-dependencies.
• Fixed license validation in init. (Thanks to @cauebs)

Fixed

• Fixed an error when locking dependencies on Python 2.7.

Added

• Added support for packages, include and exclude properties.
• Added a new shell command. (Thanks to @cauebs)
• Added license validation in init command.

Changed

• Changed the dependency installation order, deepest dependencies are now installed first.
• Improved solver error messages.
• poetry now always reads/writes the pyproject.toml file with the utf-8 encoding.
• config --list now lists all available settings.
• init no longer adds pytest to development dependencies.

Fixed

• Fixed handling of duplicate dependencies with different constraints.
• Fixed system requirements in lock file for sub dependencies.
• Fixed detection of new prereleases.
• Fixed unsafe packages being locked.
• Fixed versions detection in custom repositories.
• Fixed package finding with multiple custom repositories.
• Fixed handling of root incompatibilities.
• Fixed an error where packages from custom repositories would not be found.
• Fixed wildcard Python requirement being wrongly set in distributions metadata.
• Fixed installation of packages from a custom repository.
• Fixed remove command's case sensitivity. (Thanks to @cauebs)
• Fixed detection of .egg-info directory for non-poetry projects. (Thanks to @gtors)
• Fixed only-wheel builds. (Thanks to @gtors)
• Fixed key and array order in lock file to avoid having differences when relocking.
• Fixed errors when git could not be found.

Fixed

• Fixed self:update command on Windows.
• Fixed self:update not picking up new versions.
• Fixed a RuntimeError on Python 3.7.
• Fixed bad version number being picked with private repositories.
• Fixed handling of duplicate dependencies with same constraint.
• Fixed installation from custom repositories.
• Fixed setting an explicit version in version command.
• Fixed parsing of wildcards version constraints.

Fixed

• Fixed handling of in environment markers with commas.
• Fixed a UnicodeDecodeError when an error occurs in venv.
• Fixed Python requirements not properly set when resolving dependencies.
• Fixed terminal coloring being activated even if not supported.
• Fixed wrong executable being picked up on Windows in poetry run.
• Fixed error when listing distribution links for private repositories.
• Fixed handling of PEP 440 ~= version constraint.

Fixed

• Fixed packages not found for prerelease version constraints when resolving dependencies.
• Fixed init and add commands.

Added

• Added a new, more efficient dependency resolver.
• Added a new init command to generate a pyproject.toml file in existing projects.
• Added a new setting settings.virtualenvs.in-project to make poetry create the project's virtualenv inside the project's directory.
• Added the --extras and --python options to debug:resolve to help debug dependency resolution.
• Added a --src option to new command to create an src layout.
• Added support for specifying the platform for dependencies.
• Added the --python option to the add command.
• Added the --platform option to the add command.
• Added a --develop option to the install command to install path dependencies in development/editable mode.
• Added a develop command to install the current project in development mode.

Changed

• Improved the show command to make it easier to check if packages are properly installed.
• The script command has been deprecated, use run instead.
• The publish command no longer build packages by default. Use --build to retrieve the previous behavior.
• Improved support for private repositories.
• Expanded version constraints now keep the original version's precision.
• The lock file hash no longer uses the project's name and version.
• The LICENSE file, or similar, is now automatically added to the built packages.

Fixed

• Fixed the dependency resolver selecting incompatible packages.
• Fixed override of dependency with dependency with extras in dev-dependencies.

Fixed

• Fixed handling of package names with dots. (Thanks to bertjwregeer)
• Fixed path dependencies being resolved from the current path instead of the pyproject.toml file. (Thanks to radix)

Added

• Added the cache:clear command.
• Added support for git dependencies in the add command.
• Added support for path dependencies in the add command.
• Added support for extras in the add command.
• Added support for directory dependencies.
• Added support for src/ layout for packages.
• Added automatic detection of .venv virtualenvs.

Changed

• Drastically improved dependency resolution speed.
• Dependency resolution caches now use sha256 hashes.
• Changed CLI error style.
• Improved debugging of dependency resolution.
• Poetry now attempts to find pyproject.toml not only in the directory it was invoked in, but in all its parents up to the root. This allows to run Poetry commands in project subdirectories.
• Made the email address for authors optional.

Fixed

• Fixed handling of extras when resolving dependencies.
• Fixed self:update command for some installation.
• Fixed handling of extras when building projects.
• Fixed handling of wildcard dependencies wen packaging/publishing.
• Fixed an error when adding a new packages with prereleases in lock file.
• Fixed packages name normalization.

Fixed

• Fixed config files not being created.

Fixed

• Fixed a bug in dependency resolution which led to installation errors.
• Fixed a bug where malformed sdists would lead to dependency resolution failing.

Fixed

• Fixed a bug where dependencies constraints in lock were too strict.
• Fixed unicode error in search command for Python 2.7.
• Fixed error with git dependencies.

Fixed

• Fixed platform verification which led to missing packages.
• Fixed duplicates in pyproject.lock.

Fixed

• Fixed add command picking up prereleases by default.
• Fixed dependendency resolution on Windows when unpacking distributions.
• Fixed dependency resolution with post releases.
• Fixed dependencies being installed even if not necessary for current system.

Fixed

• Fixed resolution with bad (empty) releases.
• Fixed version for prereleases.
• Fixed search not working outside of a project.
• Fixed self:update not working outside of a project.

Added

• Added support for Python 2.7.
• Added a fallback mechanism for missing dependencies.
• Added the search command.
• Added support for local files as dependencies.
• Added the self:update command.

Changes

• Improved dependency resolution time by using cache control.

Fixed

• Fixed install_requires and extras in generated sdist.
• Fixed dependency resolution crash with malformed dependencies.
• Fixed errors when license metadata is not set.
• Fixed missing information in lock file.

Fixed

• Fixed dependency resolution for custom repositories.

Added

• Added compatibility with Python 3.4 and 3.5.
• Added the version command to automatically bump the package's version.
• Added a standalone installer to install poetry isolated.
• Added support for classifiers in pyproject.toml.
• Added the script command.

Changed

• Improved dependency resolution to avoid unnecessary operations.
• Improved dependency resolution speed.
• Improved CLI reactivity by deferring imports.
• License classifier is not automatically added to classifiers.

Fixed

• Fixed handling of markers with the in operator.
• Fixed update not properly adding new packages to the lock file.
• Fixed solver adding uninstall operations for non-installed packages.
• Fixed new command creating invalid pyproject.toml files.

Fixed

• Fixed handling of extras in wheels metadata.

Added

• Added a debug:info command to get information about current environment.

Fixed

• Fixed Python version retrieval inside virtualenvs.
• Fixed optional dependencies being set as required in sdist.
• Fixed --optional option in the add command not being used.

Fixed

• Fixed built wheels not getting information from the virtualenv.
• Fixed building wheel with conditional extensions.
• Fixed missing files in built wheel with extensions.
• Fixed call to venv binaries on windows.
• Fixed subdependencies representation in lock file.

Changed

• Changed how wildcard constraints are handled.

Fixed

• Fixed errors with pip 9.0.2.

Fixed

• Fixed wheel entry points being written on a single line.
• Fixed wheel metadata (Tag and Root-Is-Purelib).

Added

• Added support for virtualenv autogeneration (Python 3.6+ only).
• Added the run command to execute commands inside the created virtualenvs.
• Added the debug:resolve command to debug dependency resolution.
• Added pyproject.toml file validation.
• Added support for Markdown readme files.

Fixed

• Fixed color displayed in show command for semver-compatible updates.
• Fixed Python requirements in publishing metadata.
• Fixed update command reinstalling every dependency.

Added

• Added experimental support for package with C extensions.

Changed

• Added hashes check when installing packages.

Fixed

• Fixed handling of post releases.
• Fixed python restricted dependencies not being checked against virtualenv version.
• Fixed python/platform constraint not being picked up for subdependencies.
• Fixed skipped packages appearing as installing.
• Fixed platform specification not being used when resolving dependencies.

Fixed

• Fixed TypeError when requires_dist is null on PyPI.

Fixed

• Fixed missing entry point

Added

• Added packaging support (sdist and pure-python wheel).
• Added the build command.
• Added support for extras definition.
• Added support for dependencies extras specification.
• Added the config command.
• Added the publish command.

Changed

• Dependencies system constraints are now respected when installing packages.
• Complied with PEP 440

Fixed

• Fixed show command for VCS dependencies.
• Fixed handling of releases with bad markers in PyPiRepository.

Added

• Added show command.
• Added the --dry-run option to the add command.

Changed

• Changed the poetry.toml file for the new, standardized pyproject.toml.
• Dependencies of each package is now stored in the lock file.
• Improved TOML file management.
• Dependency resolver now respects the root package python version requirements.

Fixed

• Fixed the add command for packages with dots in their names.

Added

• Added remove command.
• Added basic support for VCS (git) dependencies.
• Added support for private repositories.

Changed

• Changed poetry.lock format.

Fixed

• Fixed dependencies solving that would lead to dependencies not being written to lock.

Initial release