python-poetry/poetry 1.1.0b1 on GitHub

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 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).