I need to create a concise sentence, with as few words as possible (below 7 if possible) from the following description:
Our program will only process files that are newer than 6 months old.
I need to transform it into a sentence, where the '6 months' must be written after a colon. Below is a sentence that I've managed to come up with but still sounds (a bit?) off.
Maximum backdate of file processing: 6 months
I am not sure if the whole sentence even make sense at all, but what I would like to focus on is the word 'backdate'. I looked up the word's meaning but it doesn't seem like it means what I've previously thought. So this sentence might actually not deliver the intended meaning at all.