The collection RECENTLY UPDATED only lists files which were changed outside of Imatch and read in again.
It would be useful to include in this collection all files which were changed inside of Imatch:
Files:
renamed
moved
Metadata changed ( categories, pins,dots...... also)
This collection is based on the "Last modified on disk" file system timestamp.
This tells you when a file was last updated (by IMatch or an external application). See the help for details.
Note: When you write-back metadata in IMatch, this will reflect in this collection.
If you want to see information about move/rename/copy, please use the file history, in the History Panel. This feature was designed to track such changes.