> The intent was to avoid breaking existing production configurations
> and third-party tools when feature_block_welcome becomes available, in
> order to complete the coverage of backwards compatibility.

I was thinking to publicize the one byte change for the can has feature
to disable it to stay with the old rules.  I think that's simpler than
the alias functionality.

-- 

Kevin A. McGrail
[email protected]

Member, Apache Software Foundation
Chair Emeritus Apache SpamAssassin Project
https://www.linkedin.com/in/kmcgrail - 703.798.0171

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