Detach old proxy and Attach new proxy in Product without changing clients

[himalaym]

I have a Proxy V1 which I want to decommission without impacting my client Applications, for which I need to reuse my existing product. My new Proxy V2, will have the same URL of the previous V1 and same request/response metadata, so I don't want to keep both of them and its not possible either.

I know one way to do it is use the existing Developer App to detach the existing proxy and attach the new one, but what if I no longer have access to the Developer/Team App? Can I create a new Developer/Team app and replace the proxy V1 with V2 in Product? Will it cause the clients to update anything at their end?

Thank you,

Himalay