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Not sure (I’ll need to double-check it) but you probably have to “migrate” the resources using aliases

Thanks, I'll take a look. I'm trying to replace the default provider in a stack, but no luck so far.

I’ve just taken a quick look at aliases but I cannot find there any field `provider`  there. I’d need to dig a little bit more. What programming language are you using?

Typescript. Thank you again for your time!

I did a successful provider change in the stack itself, but it's quite a cumbersome operation. We have a bunch of the stacks, so I would definitely like to avoid it.

Afaik you can achieve this only via stack export/edit/import. It's pretty laborious.

You could create the new provider, import the existing resources using the new provider, then `state delete` all the old resources, but I don't know if that's any less laborious. Probably has better error messages....

I think I've found the easiest way. If one would run `pulumi up` specifying only the created provider, Pulumi will update all resources with the new provider and won't replace them.
For instance:  `pulumi up --target urn:pulumi:aizi-test-cluster-uat::uat::pulumi:providers:aws::commonAwsProvider`

Wow, did that work? Good to know. That question does get asked from time to time. Might be a good candidate for putting on GitHub Discussions: <https://github.com/pulumi/pulumi/discussions>

Yeah, that works, at least for me. I'll add this information in Github.