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ArcGIS API for JavaScript Web Optimizer

The Web Optimizer is no longer available for creating 3.x-based custom-builds of the ArcGIS API for JavaScript. If your app references a custom build that was previously created, it will continue to work for the time being, however all custom-builds will be removed from our hosting environment in July 2022. Our recommendation is to start using version 4.x of the API, as it offers a lot more flexibility and simplicity when creating custom-builds. See Introduction to Tooling for more details. If you would like to continue to use 3.x, we recommend using the CDN version or download a local build.

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