Overview of changes leading to 2.7.0
Saturday, July 25, 2020

• Use an implementation for round that always rounds up, some minor fluctuations
  are expected on var font specially when hb-ot callback is used.
• Fix an AAT's kerx issue on broken rendering of Devanagari Sangam MN.
• Remove AAT's lcar table support from _get_ligature_carets API, not even much
  use on macOS installed fonts (only two files). GDEF support is the recommended
  one and expected to work properly after issues fixed two releases ago.
• Minor memory fixes to handle OOM better specially in hb-ft.
• Minor .so files versioning scheme change and remove stable/unstable scheme
  differences, was never used in practice (always default to stable scheme).
• We are now suggesting careful packaging of the library using meson,
  https://github.com/harfbuzz/harfbuzz/wiki/Notes-on-migration-to-meson
  for more information.
• Distribution package URL is changed, either use GitHub generated tarballs,
  https://github.com/harfbuzz/harfbuzz/archive/$pkgver.tar.gz
  or, even more preferably use commit hash of the release and git checkouts like,
  git+https://github.com/harfbuzz/harfbuzz#commit=$commit