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Shadow Deployments

Shadow deployment is a strategy where a new version of a software application runs alongside the existing version without affecting the end users. In this approach, the new system is tested in real-time by mirroring the requests made to the old system. This allows developers to monitor the new version’s performance and behavior without impacting the user experience.

One of the key advantages of shadow deployment is that it enables thorough testing of the new system under real-world conditions. Since the old system remains operational, users continue to interact with it as usual, while developers can gather data and insights from the new version. This minimizes the risk of introducing bugs or issues that could disrupt user experience.

However, maintaining two systems can be costly and complex, as the mock responses from the new system must remain compliant with the old system’s interface. This can limit the capabilities of the new version during the testing phase ¹³.

If you have more questions about deployment strategies or specific use cases, feel free to ask!

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