“Harness has native support for canary deployments, progressive delivery, blue-green deployments and automated rollback.”
“Canary deployments | Yes | Releases to a small percentage of instances first”
“Progressive delivery | Yes | Gradually increases deployment exposure”
“Blue-green deployments | Yes | Switches traffic between old and new environments”
“Automated rollback | Yes | Reverts deployments when configured failure conditions occur”
“Deployment verification | Yes | Checks metrics such as latency and error rates”
“Traffic splitting | Yes | Controls how much traffic reaches the new version”
“Feature flags | Yes, through Feature Management | Separates feature releases from code deployments”
“My assessment: Harness is a strong choice if you want enterprise-grade progressive delivery without maintaining your own deployment orchestration scripts.”
“Release orchestration | Excellent | Good”
“Flutter support | Via CI pipelines | Excellent”
“React Native support | Via CI pipelines | Very good”
“Codemagic is very good for mobile CI/CD, particularly Flutter.”
“Flutter | Dart Pub cache | Very good”
“Flutter Android | Gradle cache | Very good”
“Flutter iOS | CocoaPods cache | Good”
“React Native | Node modules | Good”
“React Native Android | Gradle cache | Very good”
“React Native iOS | CocoaPods cache | Good”
“Codemagic also supports Xcode compilation caching starting with Xcode 26, which can help speed up subsequent iOS builds.”
“Codemagic supports running multiple builds simultaneously, which is useful for mobile teams targeting multiple platforms.”
“Flutter support | Via CI pipelines | Excellent”
“React Native support | Via CI pipelines | Very good”
“Mobile app store publishing | Pipeline-based integrations | Built-in workflows”
“Cache retention: up to 14 days.”
“Maximum cache size: 10 GB per workflow for teams.”
“Maximum cache size: 3 GB per workflow for personal accounts.”
“Caching is disabled by default.”
“Pay-as-you-go | 1 initially, expandable to 3”
“One caveat: dependency caching doesn't mean complete incremental build caching.”
“Canary deployments | Native | Not its primary capability”
“Progressive delivery | Yes | Requires additional tooling”
“Automated deployment rollback | Yes, configurable | Requires deployment-specific implementation”