Semantic Version Checker

/app/code/Magento/Indexer/Controller/Adminhtml/Indexer/MassChangelog.php
/app/code/Magento/Indexer/Controller/Adminhtml/Indexer/MassOnTheFly.php
/app/code/Magento/LayeredNavigation/Observer/Edit/Tab/Front/ProductAttributeFormBuildFrontTabObserver.php

Suggested version increase (based on PHP code analysis and files changed)	PATCH
Changed files	/app/code/Magento/Indexer/Controller/Adminhtml/Indexer/MassChangelog.php /app/code/Magento/Indexer/Controller/Adminhtml/Indexer/MassOnTheFly.php /app/code/Magento/LayeredNavigation/Observer/Edit/Tab/Front/ProductAttributeFormBuildFrontTabObserver.php
Package Level Changes	No BIC changes found to packages