Hmm good question. I have two sets of clusters and both are on 13.9 so I'm honestly not sure if I ever did a postgres version upgrade. Without checking the doc

Hmm good question. I have two sets of clusters and both are on 13.9 so I'm honestly not sure if I ever did a postgres version upgrade. Without checking the docs I would imagine you could do a little hack where you restore from pgbackrest into a clean postgres 14 cluster.