I’ve just noticed a change in the order in which (some) filters are listed - for application to the Image Browser.
PLv5: 
… easy to miss all that need to be selected
PLv6: 
… better practical sequencing of filter options.
The PLv6 version is much more convenient - because, to select all unprocessed images to be exported, one must select “Unprocessed” & “Modified since last …” - and, now they’re listed consecutively 
John M