| ⇢ | A | AbstractEntity added |
| ⇢ | B | AbstractEntity::setId() added | |
| ⇢ | A | TestAuthor::testInvalidId() added | |
| ⇢ | A | TestAuthor::constructorException() added | |
| ⇢ | A | AbstractEntity::getId() added | |
| ⇢ | A | Post::getAuthor() added | |
| ⇢ | A | Post::setAuthor() added | |
| A | ↛ | Author::getAuthorId() removed | |
| A | ↛ | Author::setAuthorId() removed | |
| A | ↛ | Post::getPostId() removed | |
| A | ↛ | Post::setPostId() removed | |
| A | ↛ | Post::getAuthorId() removed | |
| A | ↛ | Post::setAuthorId() removed | |
| A | ↛ | Tag::getTagId() removed | |
| A | ↛ | Tag::setTagId() removed | |
| A | ↛ | Trail::getTrailId() removed | |
| A | ↛ | Trail::setTrailId() removed |