Is there a migration guide for v12 where we used EmbeddableScripts in v11?

We've made good use of emmbeddables in v11 of Verint (see this post for a non-exhustive list). They've primarily utilised the IBaseEmbeddableContentFragmentType & IEmbeddableScriptsService, and have worked really well for us.

In v12, which we're upgrading to in the next few weeks, we've found these In-Process APIs have been removed entirely & I assume everything now needs to be re-implemented via Embeddable Studio?

Or is there also a new In-Process API available to do this via a plugin like we do now?

If there is any guidance on how I'd go about migrating our features across that'd be great.

Thanks,

Matt.