How long will ArcGIS API for JavaScript CDN will be available

[BillBean]

I was in a session and was told the following about WAB retirement:

AGOL --> No

Enterprise --> will follow the Product Life Cycle of 6 years to retirement.

Developer Edition --> Yes, in 2 years it will follow the Product Life Cycle of the API of 2 years to be retired.

Question: We are using 3.28 API on a custom JavaScript application that uses CMV. How long will the 3.28 CDN be available for use?      

Thanks..

[MarkKinnaman · Accepted solution]

Link to Product Life Cycle Grid 

Also at the bottom of the page in the notes section it says:

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Retired API releases will continue to be hosted on our CDN for the foreseeable future (so apps built against retired versions of the API will continue to work).