On Fri, 2025-01-03 at 06:21 +0530, Siddhartha Jain wrote: > Please provide me with the high level steps for upgrade in postgres from 11 to 15 version > for primary-standby configuration setup.
You cannot use a streaming replication standby server; you have to use logical replication.
Or does OP mean that he wants to upgrade both the primary and replica at the same time?