In Argo Rollouts, what is the fundamental difference between a blue-green deployment strategy and a canary strategy?

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B. Blue-green runs old and new versions simultaneously and switches all traffic at once after testing; canary gradually shifts a percentage of traffic to the new version incrementally. In blue-green, both the active (blue) and preview (green) versions are deployed simultaneously. After the preview passes testing, traffic is switched fully from blue to green. In canary, traffic is incrementally shifted (e.g., 10% → 50% → 100%) over defined steps with analysis and pause opportunities. The key difference is all-at-once switch (blue-green) versus gradual shift (canary).

In Argo Rollouts, what is the fundamental difference between a blue-green deployment strategy and a canary strategy?

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