| ⇢ | A | Version20190510193250 added | |
| ⇢ | A | CoverImageSerializer added | |
| A | ↛ | CourseSerializer removed |
| ⇢ | A | CoverImageSerializer::normalize() added | |
| ⇢ | A | Version20190510193250::getDescription() added | |
| ⇢ | A | Lesson::getCoverImageFile() added | |
| ⇢ | A | Lesson::getCoverImageName() added | |
| ⇢ | A | Lesson::setCoverImageName() added | |
| ⇢ | A | Lesson::setCoverImageFile() added | |
| ⇢ | A | CoverImageSerializer::__construct() added | |
| ⇢ | A | CoverImageSerializer::supportsNormalization() added | |
| ⇢ | A | Version20190510193250::up() added | |
| ⇢ | A | Version20190510193250::down() added | |
| A | ↛ | CourseSerializer::normalize() removed | |
| A | ↛ | CourseSerializer::supportsNormalization() removed | |
| A | ↛ | CourseSerializer::__construct() removed |