Upgrade PostgreSQL from 17 to 18 on Ubuntu 26.04
Read OriginalThis article provides a detailed tutorial for upgrading PostgreSQL from version 17 to 18 on Ubuntu 26.04. It covers checking installed PostgreSQL versions using dpkg, listing clusters with pg_lsclusters, upgrading the cluster with pg_upgradecluster, verifying the new cluster, dropping the old cluster, and purging old packages. The guide is aimed at local development users who have two PostgreSQL versions after an Ubuntu upgrade.
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