About this guide

This guide describes how to upgrade to API Gateway version 7.5.3 from earlier API Gateway versions.


Who should read this guide

The intended audience for this guide is system engineers who are responsible for installing, configuring, and maintaining API Gateway.

Before upgrading API Gateway you should have an understanding of API Gateway concepts and features. For more information, see the API Gateway Concepts Guide.

How to use this guide

This guide should be used in conjunction with the other guides in the API Management documentation set.

Before you begin installing API Gateway, review this guide thoroughly. The following is a brief description of the contents of each section:

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