How CI/CD works: why releasing code every day is safer than once a month
Rollback: how to undo a bad deploy in minutes
A new version of an app goes live, and nobody can use it. Hunting for the bug can take hours, while every user waits. The fastest teams do something else first, and it only works because they keep every build.
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Thursday, 15:10: build 81 is on production, and every booking fails. In the laundry room, a neighbour with a full basket stares at the phone.
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Finding the bug, fixing it and sending the fix through every stage could take an hour or more. That is an hour with no laundry for anyone.
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