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Amazon ECS now offers native blue/green deployments as a simpler alternative to AWS CodeDeploy. The native approach consolidates deployment logic within ECS, performing all-at-once traffic shifts with configurable bake periods and lifecycle hooks. CodeDeploy remains relevant for teams needing canary or linear traffic shifting, multi-stage pipelines, or formal governance workflows. For most use cases, ECS-native is now the recommended default due to its reduced operational complexity and fewer moving parts.

Choosing between Amazon ECS Blue/Green Native or AWS CodeDeploy in AWS CDK

Why blue/green on ECS, and what was launched in July 2025

Two paths in CDK: ECS-native blue/green vs. CodeDeploy blue/green