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	7	219	August 27, 2025
Extension "vector" has no update path from version "0.4.1" to version "0.7.0" (PG::InvalidParameterValue) Self-hosting	4	178	August 12, 2024
Upgrading Old Discourse Installation Support	2	433	July 24, 2021
Upgrade failed. Database stopped. (multisite install) Self-hosting	20	367	December 3, 2025
Still seeing issues. How to use “the fix”? Self-hosting	3	156	February 8, 2025