[PATCH 4/4] doc: add release note entry for SSE removal

[Bruce Richardson]

On Mon, Aug 25, 2025 at 12:35:48PM +0000, Ciara Loftus wrote:
> The SSE paths have been removed from the i40e, iavf and ice Intel
> drivers. Add a release note documenting their removal.
> 
> Signed-off-by: Ciara Loftus <ciara.loftus at intel.com>
> ---
>  doc/guides/rel_notes/release_25_11.rst | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/doc/guides/rel_notes/release_25_11.rst b/doc/guides/rel_notes/release_25_11.rst
> index ccad6d89ff..d2749f2e4b 100644
> --- a/doc/guides/rel_notes/release_25_11.rst
> +++ b/doc/guides/rel_notes/release_25_11.rst
> @@ -55,6 +55,11 @@ New Features
>       Also, make sure to start the actual text at the margin.
>       =======================================================
>  
> +* **Removed the SSE vector paths from some Intel drivers.**
> +
> +  The SSE path was not widely used, so it was removed from the i40e,
> +  iavf and ice drivers.
> +
>  
>  Removed Items
>  -------------
> -- 
I think the deprecation notice can be removed, too.

Also, like with the cover letter, it's worth explaining that the SSE paths
are replaced by the AVX2 and AVX-512 paths which offer better performance.

/Bruce