- **REFACTOR**(normalize): Add const constructor to visitors.

 - **REFACTOR**(ferry): Use const to list.

 - **REFACTOR**(ferry_generator): Add const constructor to AddTypenam…

…eField.

 - Update a dependency to the latest release.

 - Update a dependency to the latest release.

> Note: This release has breaking changes.

 - **BREAKING** **CHORE**(deps): upgrade rxdart to v0.28.0 (#612).

> Note: This release has breaking changes.

 - **BREAKING** **CHORE**(deps): upgrade rxdart to v0.28.0 (#612).

> Note: This release has breaking changes.

 - **BREAKING** **CHORE**(deps): upgrade rxdart to v0.28.0 (#612).

> Note: This release has breaking changes.

 - **BREAKING** **CHORE**(deps): upgrade rxdart to v0.28.0 (#612).

> Note: This release has breaking changes.

 - **BREAKING** **CHORE**(deps): upgrade rxdart to v0.28.0 (#612).