| ⇢ | A | SectionManager added |
| ⇢ | C | SectionManager::setReferences() added | |
| ⇢ | B | SectionManager::update() added | |
| ⇢ | B | SectionManager::matchSections() added | |
| ⇢ | A | SectionManager::delete() added | |
| ⇢ | A | SectionManager::create() added | |
| ⇢ | A | SectionManager::__construct() added |