Is the CommonUI plugin still experimental (as of 5.2)?

I’m not seeing the typical “This experimental feature isn’t recommended for use in production” disclaimer on the docs page, and the entry doesn’t have the “Experimental” or “Beta” tags in the in-editor Plugins view, but I noticed that the source code still lives under Engine/Plugins/Experimental/CommonUI. Also, going as far back as 5.0, the documentation page has never had that “experimental feature” disclaimer, but the documentation is definitely much more fleshed out as of 5.2. So what’s the status here? Is it production-ready yet? And if not, how will we know when it becomes production-ready?

Yes it’s “experimental” and the engine it’s built on.