| ⇢ | A | Version20191206150030 added | |
| ⇢ | A | Version20210221082033 added | |
| A | ↘ | C | Version20181025064351 got worse |
| ⇢ | B | Version20191206150030::up() added | |
| ⇢ | B | Version20210221082033::up() added | |
| ⇢ | A | GradebookCategory::setSession() added | |
| ⇢ | A | GradebookCategory::getParent() added | |
| ⇢ | A | GradebookCategory::getSession() added | |
| ⇢ | A | GradebookCategory::setCourse() added | |
| ⇢ | A | GradebookCategory::getCourse() added | |
| ⇢ | A | GradebookCategory::setParent() added | |
| ⇢ | A | Version20210221082033::getDescription() added | |
| B | ↘ | C | Category::save() got worse |
| B | ↗ | A | Version20191206150000::up() improved |