How to migrate feature flags without breaking production
Summary
Feature flag migrations can be executed safely by replacing high-risk, large-scale cutovers with an incremental approach that allows two systems to run in parallel. By redirecting all new flags to the new platform and using "shadow mode" techniques to verify logic parity between both systems, teams can ensure production stability while phasing out legacy configurations.
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This article originally appeared on Datadog | The Monitor blog.
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