Shipping on Fridays (and why we don't fear it)

Some teams ban Friday deploys. We would rather make deploys so uneventful that the day of the week stops mattering. The goal isn't a rule about Fridays; it's a system you trust at 5pm.

Small and often

Big releases are where the fear lives. We ship small, reversible changes so each one is easy to reason about and quick to roll back. A deploy should feel like a save, not a leap.

• Trunk-based development with short-lived branches.
• Automated tests that run before anything merges.
• Progressive delivery: roll out to a slice of traffic before going all in.

rollout:
  strategy: canary
  steps: [10%, 50%, 100%]
  pause_on_error_budget_burn: true

Do that, and Friday becomes just another afternoon.