On Tue, 30 Dec 2014 16:53:08 -0700, Akira Kakuto wrote:

Dear Idris Samawi Hamid,

...

What is the minimum set of files are needed to update luatex?

They are luajittex.dll, and luatex.dll.

Thanks, Akira. I'm not experimenting with jit, so I ignored that... So to be safe I just did luatex.exe mtxrun.exe texlua.exe texluac.exe lua52.dll luatex.dll mtxrun.dll But I guess all that was really necessary was luatex.exe texlua.exe luatex.dll Best wishes Idris -- Idris Samawi Hamid Professor of Philosophy Colorado State University Fort Collins, CO 80523