- Update to 1.7.0
## Added
* Optionally use resolved references when converting a VCS
dependency to a PEP 508 dependency specification (#603).
* Improve performance of marker handling (#609).
## Changed
* Drop support for Python 3.7 (#566).
* Remove deprecated poetry.core.constraints.generic and
poetry.core.semver (#601).
* Allow | as a value separator in markers with the operators in
and not in (#608).
* Put pretty name (instead of normalized name) in metadata
(#620).
* Update list of supported licenses (#623).
## Fixed
* Fix an issue where the encoding was not handled correctly when
calling a subprocess (#602).
* Fix an issue where caret constraints with additional whitespace
could not be parsed (#606).
* Fix an issue where PEP 508 dependency specifications with names
starting with a digit could not be parsed (#607).
* Fix an issue where Poetry considered an unrelated .gitignore
file resulting in an empty wheel (#611).