Version 8.1.0

• Update lz4 and brotli.
• Remove various spurious checks against glyph count.
• Sanitize PS names more strictly than the spec requires.
• Fix up bad entrySelector in the table directory.
• Allow for new flags in Graphite Feat table.
• If variation tables are dropped don't parse any other variation tables.
• Remove variation tables that don't parse.
• Fix up sfntVersion instead of rejecting the font.
• Make sure sfntVersion is always either 0x000010000 or OTTO.
• If font has both glyf/loca and CFF[2], drop CFF[2].
• Set post table version to 3 if the font have CFF table, instead of rejecting.
• Various oss-fuzz fixes.

Version 8.0.0

• Sanitizing variation tables is always enabled now.
• Support CFF2 table, including variations support.
• Add some error messages to the CFF table parsing.
• Disallow multiple fonts in CFF table, per spec.
• Check for invalid glyph indices in CFF/CFF2 FDSelect.
• ignore VarRegionList.RegionAxisCount when RegionCount == 0 invariation tables.
• Remove version dependent reserved value checks from Graphite Silf table.
• Fix some compiler and Coverity warnings.
• Fix incorrect comparison in test code.
• Various code and build scripts cleanups.

Version 7.1.9

• Various bug fixes: oss-fuzz#12840, #178, #180, #181

Version 7.1.8

• Various build system fixes.

Version 7.1.7

• Small improvements to log messages
• Switch the build system from autotools to meson

Version 7.0.0

• [ots] Avoid #define-ing htons and friends (#155)
• [cff] Allow empty array for Blue operators (#156)
• [cmap] Support 0-4-12 subtable
• [layout] Don’t be lookup flags police (googlefonts/ufo2ft#184)
• [ots] Don't bail for fonts with CFF2 glyph table (#160)
• [layout] Don't reject variation fonts for having a VariationIndex table
• [name] Limit the length of format 1 lang tags
• [layout] Add support for parsing GSUB/GPOS format 1.1, with FeatureVariations subtable
• [variations] Add support for variable fonts, behind OTS_VARIATIONS preprocessor macro.
• [OS/2] Don’t reject for some set fSelection bits
• [OS/2] Don’t reject for bad usFirstCharIndex
• [OS/2] usWeightClass valid range is 1..1000 now (#167)

Version 6.1.1

Various build fixes.

Version 6.1.0

• [layout] Reword some error messages
• [graphite] Allow for padding when decompressing
• [graphite] Fix binary-search header fields rather than dropping table
• [graphite] Don't issue warnings when fixing up deprecated fields
• [graphite] Fix invalid lbGID instead of dropping table
• [graphite] Match signedness in GlatEntry loop for Glat v3
• [glyf] Allow simple glyph flag bit 6 to be set
• [brotli] Update to v1.0.1
• [woff2] Update to v1.0.1

Version 6.0.0

• [ots] Improve warnings and error messages.
• [glyf] Allow empty, none-zero size table.
• [glyf] Accept glyphs with 0 numberOfContours.
• [glyf] Sanitize composite glyphs.
• [glyf] Don’t reject glyphs with extra data at end.
• [ots] Don’t reject fonts with malformed table tags, the tables themselves are still dropped.
• [post] Correctly parse the header for all table versions.
• [tests] Make some tests run on Windows and Mac.
• [layout] Relax GSUB/GPOS DFLT table requirements, after the update in OpenType 1.8.2 spec.
• [graphite] Sanitize Graphite tables, by Kevin Hsieh!
• Update brotli and woff2 libraries.

Version 5.2.0

• Renamed all command line utilities to have ots prefix and spell sanitize with a z.
• More extensive test suite, including fuzzing by oss-fuzz.
• Fixed increased memory usage with some broken fonts as found by oss-fuzz.
• Various documentation updates.
• More tables can be passed through now.