Owen Taylor <otaylor@redhat.com>, with help from many others, including:

Abigail Brady (Indic shapers), Hans Breuer (Windows backend), Matthias
Clasen (Documentation), Sivaraj Doddannan (Tamil shaper), Dov Grobgeld
(Hebrew shaper), Karl Koehler (Arabic shaper), Alex Larsson (FreeType
and Windows backends), Tor Lillqvist (FreeType and Windows backends),
Changwoo Ryu (Hangul shaper), Havoc Pennington, Roozbeh Pournader
(Arabic shaper), Chookij Vanatham (Hebrew shaper).