https://www.pistack.xyz/tags/upgrade/ Recent content in Upgrade on Pi Stack Hugo en-us Tue, 02 Jun 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-06-02-database-major-version-upgrades-pgupgrade-logical-replication-dump-guide/ Tue, 02 Jun 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-06-02-database-major-version-upgrades-pgupgrade-logical-replication-dump-guide/ <h2 id="introduction">Introduction</h2> <p>Every database administrator eventually faces the same challenge: upgrading to a new major version without disrupting production traffic. PostgreSQL releases a new major version annually, MySQL/MariaDB follow their own cadence, and each upgrade brings performance improvements, new features, and security fixes. But upgrading a production database holding terabytes of data is not a trivial task — the wrong approach can mean hours (or days) of downtime.</p>