---
upgrade:
  - |
    Change the imports for in_memory document store and retrievers from:

        from haystack.document_stores import InMemoryDocumentStore
        from haystack.components.retrievers import InMemoryEmbeddingRetriever

    to:

        from haystack.document_stores.in_memory import InMemoryDocumentStore
        from haystack.components.retrievers.in_memory import InMemoryBM25Retriever

enhancements:
  - |
    Stop exposing `in_memory` package symbols in the `haystack.document_store` and
    `haystack.components.retrievers` root namespaces.