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Source code reorganization, splitting large hb-ot-layout files into smaller, per-subtable ones under OT/Layout/*. Code for more tables will follow suit in later releases. (Garret Rieger, Behdad Esfahbod)
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Revert Indic shaper change in previous release that broke some fonts and instead make per-syllable restriction of “GSUB” application limited to script-specific Indic features, while applying them and discretionary features in one go. (Behdad Esfahbod)
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Fix decoding of private in gvar table. (Behdad Esfahbod)
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Fix handling of contextual lookups that delete too many glyphs. (Behdad Esfahbod)
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Make “morx” deleted glyphs don’t block “GPOS” application. (Behdad Esfahbod)
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Various build fixes. (Chun-wei Fan, Khaled Hosny)
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New API
+hb_set_next_many() (Andrew John)