{Joseph Wright}
{Further adventures in Unicode-land: Refining~case changing}
{Getting text processing right for Unicode in \TeX\ is a challenge, 
particularly where one wants to support the full range in pdf\TeX. Over 
the past few years, I have worked on one aspect: case changing. Code to 
carry out the Unicode case changing algorithm was integrated into the 
\LaTeX\ kernel a couple of years ago. Since then, we have been refining 
the details, adding more power and discovering new issues. Here, I'll 
look at what we've done to get the code working smoothly, and look 
forward to what might still be improved.}