1 - Rename get_table to reference_table
3 - head table access cleanup (div by zero now!)
4 - cache various expensive scale computation
6 - SFNT api? get_num_faces?
8 - GNOME Bug 612402 - (hb-arm) HarfBuzz compilation fix for arm
10 - Make sure LangSys default feature is only applied once...
12 - kern/GPOS interaction
14 - Use size_t in sanitize?
15 - Better define HB_INTERNAL
16 - Future-proof metrics struct
19 - Rename hb_internal_glyph_info_t to hb_ot_glyph_info_t
20 - Add query API for aalt-like features
21 - HB_OT_LAYOUT_GLYPH_CLASS_BASE_GLYPH vs LookupType::... mess