---
upgrade:
  - |
    ``haystack-experimental`` is no longer a core dependency of Haystack and is no longer installed automatically with ``haystack-ai``.
    If your code imports from ``haystack_experimental`` (directly or
    through an integration that relies on it), you must now install it explicitly, for example with
    ``pip install haystack-experimental``. Installations that do not use ``haystack_experimental`` are
    unaffected.