Welcome to the Zen Internet community support forums.
Before posting we recommend you search our extensive Knowledge Base or the forum archives as an answer to your query may already be available.
I just downloaded a large multi binary just under 8 days old, i used to have problems with files being incomplete if they were over 6 days old.
I know zen claim 7 days retention but has it increased? i didn't need a single par2 block.
Blackmesa8
I normally find loads of complete posts that are around the 8 day mark but quite a few that are not as well. so they probably advertise 7 days to be safe.