>> If LuaTeX breaks compatibility with earlier LuaTeX files, then it
>> seems acceptable in some sense not to support older versions of
>> LuaTeX. If LuaTeX is stable at some point, then I'd have no
>> problem with removing support for any earlier versions of LuaTeX.
>> As Karl said, there's no harm if you want to keep on updating to
>> track LuaTeX's changes.
>
> Thank you for your information. I'll watch LuaTeX changing.
I guess it makes sense only to support TeXLive LuaTeX (binary)
versions.
Werner
