![](https://reddthat.com/pictrs/image/4802e205-69c2-4685-9a6e-fbcc167c3272.png)
![](https://lemmy.ml/pictrs/image/waqyZwLAy4.webp)
The script will be useless to you, besides for referencing what to do.
Export, remove pg15, install pg16, import. I think you can streamline with both installed at once as they correctly version. You could also use the in place upgrade. Aptly named: pg_upgradeclusters
But updating to 0.19.4, you do not need to go to pg16… but… you should, because of the benefits!
A faster db. Just the regular performance benefits, https://www.postgresql.org/about/news/postgresql-16-released-2715/
Also, Lemmy is built against v16 (now) so at some point it will eventually no longer JustWork