Business stakeholders often worry that users will notice downtimes, leading them to delay updates “for a more convenient time.” This slows development, replacing small, frequent releases with larger batches.

The bigger the update, the more things can go wrong. Over time, this cycle fuels tension in communication between developers and business teams.

The good news is that it’s pretty much avoidable. We'll talk about the key principles of zero-downtime deployment applied to the main components of any web app: the backend, the frontend, and the database

Audience: Developers, Engineering managers
Valuable insight to take home: Practical guide to zero-downtime deployment for most web applications.

This talk was presented at the Working Software conference 2025. See the recording at https://www.youtube.com/watch?v=TR3TADaqeLg