https://gds.blog.gov.uk/2024/01/17/how-we-migrated-our-postgresql-database-with-11-seconds-downtime/ GOV.UK Notify is hosted on the GOV.UK Platform as a Service (PaaS). The PaaS is being retired, so we are migrating all of our infrastructure into our own Amazon Web Services (AWS) account. This blog post explains how we migrated our PostgreSQL database with minimal downtime. Migrating our database The PaaS provides a database for us and we use it to store all of our data - from data about each no...