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  • Philip Shaw thinks this is interesting:

Jez Humble calls blue-green deployment. In this case, a new release is placed in production with a small subset of users and, if all goes well during a monitoring phase, more users are routed to the new release until the full userbase is on the new release. If any problems are encountered during this phased rollout, the users can all be returned to the previous release until problems are resolved and the process starts again.


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