Dear All, Thank you very much for this update! > We have not at this stage addressed > attributes, callbacks or other areas that need new allocators. We hope > that over the coming months interested parties will work with us to > develop a coherent scheme in this area to be added to a future LaTeX2e > release. I'd be more than happy to! It might end the weird situation we have now where 'luatexbase' and 'luatex' have conflicting allocators. Tell me when you're ready to work on this. Thank you, -- Elie