Dependencies

Features

- support pypy interpreter
[42](https://github.com/proofit404/dependencies/issues/42)

Build System

- add python 3.9 support
[410](https://github.com/proofit404/dependencies/issues/410)

BREAKING CHANGES

- drop python 3.6 support.

Features

- deny to use empty extension scope
[398](https://github.com/proofit404/dependencies/issues/398)

Bug Fixes

- handle shadowed default arguments
[240](https://github.com/proofit404/dependencies/issues/240)

Bug Fixes

- correct default argument error message
[239](https://github.com/proofit404/dependencies/issues/239)

Features

- replace let attribute with call
[315](https://github.com/proofit404/dependencies/issues/315)

BREAKING CHANGES

- `let` attribute was removed. Use `Injector()` instead of obsolete
`Injector.let()`.

Code Refactoring

- drop Python 2.7 and 3.4 support
[348](https://github.com/proofit404/dependencies/issues/348)

BREAKING CHANGES

- Due to the our new policy of enterprise user support we will drop abandoned
version of python and libraries we are integrated with as soon as they reach
official end of life.