Feature: Indexer for EXT:mask and EXT:bootstrap_package and similar extensions. Content which is stored in additional tables (not in tt_content) can now be indexed. Tables and fields can be configured in the indexer configuration, see https://docs.typo3.org/p/tpwd/ke_search/5.3/en-us/Indexing/IndexerTypes/Pages.htmlindex-content-from-additional-tables-eg-ext-mask-ext-bootstrap-package. For the full changelog of this version see https://github.com/tpwd/ke_search/blob/v5.3.0/ChangeLog