I use the binaries from http://www.fsci.fuk.kindai.ac.jp/kakuto/win32-ptex/web2c75-e.html.
(This is LuaTeX, Version beta-0.41.0-2009070721 (Web2C 2009))

2009/7/9 Taco Hoekwater <taco@elvenkind.com>
Lutz Haseloff wrote:
Hi Thomas,

You are right, "stand-salarm" is definitely wrong. I think too, that LuaTex
should hyphenate the word
like given in \hyphenation{}. It seems that \hyphenation{} is ignored.

Hi guys,

Are you using the binary from minimals, or the binary from the
supelec.fr package, here:

http://foundry.supelec.fr/gf/project/luatex/frs/

There might be a difference.

Best wishes,
Taco

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