Version B is released to a subset of users under specific condition.
A/B testing deployments consists of routing a subset of users to a new functionality under specific conditions. It is usually a technique for making business decisions based on statistics rather than a deployment strategy. However, it is related and can be implemented by adding extra functionality to a canary deployment so we will briefly discuss it here.
This technique is widely used to test conversion of a given feature and only roll-out the version that converts the most.
Here is a list of conditions that can be used to distribute traffic amongst the versions:
- Weight
- Cookie value
- Query parameters
- Geolocalisation
- Technology support: browser version, screen size, operating system, etc.
- Language
