Answers
What is canary deployment?
In short
Canary deployment rolls a new version out to a small percentage of traffic first, monitors quality signals, and only proceeds to wider rollout if those signals stay healthy.
Short answer
Canary deployment rolls a new version out to a small percentage of traffic first, monitors quality signals, and only proceeds to wider rollout if those signals stay healthy.
What this actually means in practice
It's the safest progressive-delivery pattern. Requires good observability (you must be able to compare canary vs baseline on real metrics) and an automated rollback rule.
The most common pitfall
Canary deploys without comparison metrics — i.e. you can't tell if the canary is healthy.
What to do next
Define your canary acceptance metrics before you turn on the pattern.
Frequently asked questions
Does Forth Systems help with this?
Yes — Forth Systems works with banks, payment institutions, insurers and infrastructure operators on exactly this kind of work. Engagements start with a fixed-scope assessment so you see the shape before committing.
How experienced is the team?
Engagements are staffed by named, UK-based senior engineers — not a rotating offshore pool. References from the second line of comparable clients are available on request.
Where are you based?
Edinburgh-based, delivering UK-wide with onsite presence in London and across Scotland as required.
How fast can we start?
Most engagements start within 2-4 weeks of a signed SoW, faster where an existing supplier framework is in place.