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Yup, 5.2 as mentioned in some manual I've found on SAS webpage [1]

Talking of tkLua, can it be some kind of API for "Threaded Kernel"
infrastructure? [2]
Also "tk" seams to be common namespace for various libraries or "apps"
(not sure about correct SAS terminology), for example


On Thu, Oct 8, 2020 at 6:50 PM Matthias Kluwe <> wrote:
> Hi!
> A while ago, I wrote about two findings of "where Lua is used" (see for discussion, unfortunately both have not made it to appear on
> In the meantime, the SAS programming language promoted Lua as an alternative to its legacy macro language (search for "sas proc lua"). I wondered which version of Lua might be used under the hood and issued a quick
>     proc lua;
>     submit;
>     print( _VERSION )
>     endsubmit;
> To my surprise, the out was
>     tkLua 5.2
> I'm not sure what this tkLua is. It may have been a Lua with Tk bindings, but it's hard to find some up to date information. In addition, "Tk" makes no sense in this context.
> Can anyone help me out here?
> Regards,
> Matthias