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What does "rolling update" mean in programming?
rolling update is one of the most common terms in software development. This guide explains what it means, how it is used in practice, and why it matters, with real examples from the developer world.
Definition
A deployment strategy that replaces old pods with new ones gradually, avoiding downtime. You configure `maxSurge` and `maxUnavailable` to control how many pods are updated at a time.
Example
"The rolling update replaced 25% of the pods at a time until the new version was fully deployed."
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