0.3.0

Added

• [Plugin] Add the field/4 callback with an additional env argument. This is
  the same as field/3 but gives access to the environment of the field
  definition.

Deprecated

• [Plugin] Deprecate the field/3 callback in favour of field/4. You should
  migrate to field/4, simply by adding _env as the last argument in your
  implementation. Currently, if a plugin implements field/3, field/4 is
  derived from it and a compilation warning is emitted. field/3 will be
  removed in TypedStruct 1.0.0.

Removed

• Drop support for unsupported Elixir versions in the tests and CI. The
  library may still be compatible, but this is not tested.

Fixed

• Fix the lexical scope of the typestruct block, so it covers it completely.
  Previously, anything defined inside the typedstruct block, such as
  aliases, would not be available for the field definitions. See #22 and #21
  for details.
• Fix a typo in the documentation.