I’d like to have a way to manually purge backups older than a certain date.
Essentially… Enter a date, press a button, and all backups older than that date are removed from the list and from remote storage.
This idea was posted in UpdraftPlus - backup/restore plugin and tagged backups, manual, purge on October 21, 2017 by 
Gary Cameron.
Interesting idea; I have made a note of this for evaluation and possible implementation.