I am looking for a detailed step by step guide to upgrade my PostgreSQL 9.4 to 9.5, with all the existing configuration and settings to newly upgraded version.
official postgres doc with option to pg_upgrade seems hard for me to follow, hope someone will be here available to help me do the upgrade.
I am on CentOS, my server is hosted at OVH, and application stack at digitalocean (Ruby, NginX application server).