| ⇢ | A | BaseLanguageSetting added | |
| ⇢ | A | Language added | |
| ⇢ | A | StaticModel added | |
| ⇢ | A | WithLanguageSettingsModel added |
| ⇢ | A | BaseLanguageSetting::rules() added | |
| ⇢ | A | Language::rules() added | |
| ⇢ | A | StaticModel::findByKey() added | |
| ⇢ | A | StaticModel::models() added | |
| ⇢ | A | BaseLanguageSetting::getParents() added | |
| ⇢ | A | BaseLanguageSetting::getLanguage() added | |
| ⇢ | A | BaseQuestionGroup::getQuestions() added | |
| ⇢ | A | BaseSurvey::getQuestions() added | |
| ⇢ | A | WithLanguageSettingsModel::getLanguageSettings() added | |
| A | ↛ | BaseSurvey::getQuestion() removed |