Latest / Tech Leadership with Fexingo: Engineering Managers, CTOs, and Technical Leadership Conversations
How CTOs Use Versioned APIs to Retire Legacy Systems
In this episode of Tech Leadership with Fexingo, Lucas and Luna explore how CTOs use versioned APIs as a strategic tool for retiring legacy systems without the chaos of a big-bang rewrite. They break down the real-world case of a major bank that successfully migrated from a decades-old mainframe system by exposing a modern API layer, incrementally moving consumers over, and shutting down the old system piece by piece. Along the way, they discuss the difference between breaking and non-breaking changes, how to communicate deprecation timelines to internal and external developers, and why…
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