Important: #85393 - Extension Manager only imports extensions compatible with TYPO3 v7 LTS or higher ¶
See Issue #85393
The extension manager now includes a restriction when updating the list of current extensions within TER that have been uploaded later than November 10th, 2015 - the release of TYPO3 v7 LTS (7.6.0).
This ensures that the database is drastically reduced, resulting in smaller footprint for the database and faster updating / searching / browsing the list of available extensions within the Extension Manager.
Installing extensions older than this date is still possible by manually downloading an extension
and importing it via a ZIP file or by uploading it into