Hello everyone, I’m preparing an upgrade from Discourse 3.4.5 to 2026.1 and I noticed the migration 20251007123645_upgrade_pg_vector080_take2, which updates pgvector to 0.8.0 if needed. My question is: Would it be safe to manually upgrade pgvector to 0.8.0 in the current database before running t…

Is it safe to upgrade pgvector to 0.8.0 before running migration 20251007123645?

Falco (Falco) February 23, 2026, 1:51pm 2

Yes, that is safe. And it is common scenario for people running in hosted PostgreSQL services.

Topic		Replies	Views
Dev migration error: PGVector Development	6	231	July 28, 2025
Extension "vector" has no update path from version "0.4.1" to version "0.7.0" (PG::InvalidParameterValue) Self-hosting	3	192	August 12, 2024
Upgrading Old Discourse Installation Support	2	441	July 24, 2021
Upgrade failed. Database stopped. (multisite install) Self-hosting	18	402	November 2, 2025
Still seeing issues. How to use “the fix”? Self-hosting	3	173	February 8, 2025