This add-on (based on guyasyou's add-on List of all page versions) displays a list of collection versions including a client (browser) based table sorter.

Obsolete versions can be scanned and deleted. An obsolete version is defined as versions of a collection having

• version number less than a present approved version number or
• version number less than the highest version number, if no approved version present.

Page is created as Dashboard/Sitemap/Enhanced Version List
(yoursite.com/index.php/dashboard/sitemap/tds_enhanced_version_list)

Tested on 5.7.5.9 and 8.1.0

GitHub

https://github.com/dausi/tds_enhanced_version_list