The HarfBuzz source code is hosted at github.com/harfbuzz/harfbuzz.
Tarball releases and Win32 binary bundles (which include the
libharfbuzz DLL, hb-view.exe, hb-shape.exe, and all
dependencies) of HarfBuzz can be downloaded from github.com/harfbuzz/harfbuzz/releases.
Release notes are posted with each new release to provide an
overview of the changes. The project tracks bug
reports and other issues on GitHub. Discussion and
questions are welcome on the HarfBuzz
mailing list.
The API included in the hb.h
file will not change in a
compatibility-breaking way in any release. However, other,
peripheral headers are more likely to go through minor
modifications. We will do our best to never change APIs in an
incompatible way. We will never break the ABI.