From the changelogs:
- Added option for enabling processing of ZIP archives in subfolders of the global import directory.
- Added support for property master objects and subunits (Houzez, Real Homes, Real Places, WP Residence and WP Estate theme)
- Added automatic deletion of outdated mapping backups.
- Added basic support and mappings for onOffice-specific custom flags.
- Fixed deletion issue regarding unzip folders of corrupt ZIP archives.
- Updated/Extended theme/plugin support: Kickstart, BO-Beladomo/20, BO-Immobilia18, BringsOnline, Houzez, Real Homes, Real Places, WP Residence, WP Estate, MyHome
- Updated all default mapping tables (clearer terms, typos fixed etc.).
- Improved processing of very large ZIP/XML files.
- Improved automated agent recognition.
- Improved multilingual/attachment processing and WPML compatibility.
- Adjusted generation/display of admin notices.
- Extended debug logging.
- Improved PHP 7.4 compatibility.
- Improved compatibility with current WPML version.
- Added language reset on updating existing properties.