libertinus

• Add 29 more specialty arrow glyphs to Math family
• Rebuild with new sfdLib release to fix Spiro curve issues in uni2639
• Correct Q.u side bearings to match Q in Sans & Serif families
• Add missing U+029C to Serif Bold Italic
• Add missing ‘below’ mark to h/H/h.sc across Serif family
• Consistently align ‘below’ mark on h/H/h.sc across Serif family
• Re-align mark positioning on U+032E breve below across Serif family
• Add smallcaps and caps-2-smallcaps feature for h/H + breve below
• Re-align ‘below’ mark on U+029C to match smallcaps across all families
• Apply proper features (smallcaps i, f_i ligatures) in Kazakh and Tartar
• Configure aboveMark as mark-to-mark lookup in Italics and add marks for:
  gracecomb, acutecomb, uni0302, tildecomb, uni030c, uni0304
• Add above marks for otilde, open o and open e in Italics
• Add above marks for otilde, vtilde and Vtilde in Regular
• Correct placement of aboveMarks in Regular for:
  uni0300, uni0301, uni0302, uni0303, uni0304, uni0306, uni0308, uni030c
• Add documentation of available OpenType features and sample CSS rules

Thanks to everyone who contributed towards this release including Ivo Straka (@ivo-s) and new contributors Felix Kopecky (@kopeckyf) and Christoph Päper (@Crissov)!

• Correct distribution release filenames

See also release notes for v7.030.

• Overhaul dot placement on all Latin capitals with dot-above
• Align dot-below on ṃ U+1E43 below middle stroke of m
• Remove bogus glyphs encoded as subscripts from Display and Serif Semibold
• Drop inappropriate kerning classes from ₘ U+2098 and ₙ U+2099
• Zero out kerns between super/subscript glyphs
• Add glyph for U+0453 to Cyrillic Italic styles
• Enable support for Macedonian localized Italics
• Expand range of available angle bracket sizes in Math family
• Add alternative slanted integrals to Math family (as feature +ss08)

• Fix name tables broken in 7.010 that associate styles in the Serif family
• Correct position of middle dot on ŀ U+0140 in Mono and Keyboard families
• Adjust height of middle dot in Ŀ U+013F in the Display family
• Un-slant ‖ U+2016 and ‗ U+2017 in Mono family
• Un-slant, center, and fix widths of dash related characters in Mono family

• Build WOFF2 static font files suitable for use as self-hosted webfonts
• Add ‘𝄆’ [U+1D106] and ‘𝄇’ [U+1D107] MUSICAL SYMBOL REPEAT SIGN glyphs
• Add ‘꞉’ [U+A789] MODIFIER LETTER COLON glyph
• Fix weight of period (and derivatives such as colon) in Serif Semibold
• Fix side bearings for +dlig ‘tz’
• Fix vertical alignment of dots in colon to not shift between weights
• Fix kerning of ‘f\’ and substitute an alternate ‘f’ glyph used in ‘f)’
• Cleanup encoding used in source files and build rules for easier maintenance
• Update font meta data fields, documentation for downloads, and build process

• Adopt maintenance of project and update foundry, docs, URLs, etc.
• Change version scheme to be OpenFV compatible with 3 digit minor version.
• Use Fontship to build all fonts and generate release packages.
• Filter out generated font artifacts from source repository.

• Increase right side bearing of math italic R’s (#304).
• Add glyph variants for floor and ceiling, to make their sizing consistent with other delimiters.
• Remove kerning and other glyph positioning features, combining marks and other non-keycap glyphs from Libertinus Keyboard font.
• Fix size and shape of U+2639, U+263A and U+263B (frowning & smiling faces).
• Add “smcp”/“c2sc” variants for letters with macron (#303).
• Make U+2223-2226 the same height as bar (#324).
• Drop “sinf” feature, it just duplicates “subs” feature.
• Improve sizing and spacing of math over accents.
• Building the fonts no longer use FontForge.

• Added turned capital F (U+2132) to Libertinus Serif Regular.
• Fix advance width for Serbian alternate U+0431 in Libertinus Serif Semibold.
• Unify Cyrillic small letter ef (U+0444) shape in Libertinus Serif SemiBold fonts.
• Add U+1D35, U+1D51, U+1D4B, U+1DA4, U+1DB6, U+2132, U+A71C-A71D, and U+A78A-A78C to Libertinus Serif fonts.
• Add U+2982 and U+2A3E to Libertinus Math.
• Various cleanups to Libertinus Mono font, removing erroneous glyphs and unsuitable features.
• Improve the metrics of math italic v, w, and y.
• Work around a bug in old versions of FreeType when rendering Linertinus Sans Italic m.
• Fix alignment of multiplication sign in Libertinus Serif and Mono Regular fonts.
• Make sizing of vertical and double vertical bar consistent with other math delimiters.
• Improve spacing above and below fraction rule.
• Various fixes to combining marks placement.

• Improve math italic j and i spacing (#273).
• OpenType layout tables are now compiled with FontTools's feaLib instead of
  FontForge's own OpenType layout support.
• Various internal cleanups.
• Drop "case", "frac", "tnum" and "pnum" features from the Libertinus Mono
  font, they either were broken or not appropriate for a monospace font.

• Many mathematical operator in Libertinus Math were scaled up and redesigned for better use in math mode.
• Libertinus Math now has fraktur alphabets (copied from STIX Two Math font) and sans serif italic Greek (slanted from the upright version).
• Overline mark (U+0305) no longer make i and j dotless.
• Overline mark should be placed higher than glyph ascenders.
• Fonts are now autohinted with Adobe’s psautohint instead of FontForge’s autohinter.
• Libertinus Keyboard had the German keys Bild misspelled as Build in both glyph name and ligature string.
• Several changes to glyph names for consistency and accuracy.
• Several minor reorganization to the OpenType features.

• Fix missing “math” OpenType script from Libertinus Math.
• Add \QED symbol to Libertinus Math, also add Add ⦇ (U+2987) and ⦈ (U+2988).
• Fix mis-encoded glyphs in Libertinus Serif Semibold Italic.
• Make digits fitted in Libertinus Serif Initials font, and drop incomplete Greek, Cyrillic and Hebrew support.
• Add U+AB52 and U+A793 to Libertinus Serif Regular.

• Add Cyrillic to Libertinus Serif Bold Italic.
• Many character additions to Libertinus Math.
• Set “is extended shape” flag to relevant Libertinus Math glyphs to fix script position on large symbols in Microsoft Word.
• Improve \coloneq and \eqcolon by increasing the space between the colon and the equal sign.
• Make upright \partial and \mbfpartial look upright, and make \mbfpartial really bold.
• Make the vertical bars in Libertinus Math match the height of the other delimiters.
• Use smaller value for SubscriptBaselineDropMin, the subscripts applied to sub formulas were positioned too low.
• Fix the side bearings for italic mathematical glyphs in Libertinus Math, making them symmetrical (20 units) and rework kerning tables according to text font kerning.
• Fix vertical variants of math symbols.
• Add more ligatures to Libertinus Serif, and add missing ligatures to other Libertinus Serif fonts for parity with the regular style.
• Move Th ligature to Discretionary Ligatures (“dlig”).
• Discretionary Ligatures can also be enable using ZWJ control character.
• Drop “fina” feature for Greek sigma, this feature is for Arabic-like scripts.
• Move short f substitutions to the more appropriate “calt” feature instead of “ccmp”.
• Drop “nalt” feature as all glyphs it substitutes to are encoded Unicode characters that can be accessed directly.
• Rename font files to match the PostScript name of each font.
• Make Libertinus Serif Semibold work on legacy applications that support only 4 styles per family.
• Fix disordered BlueValues causing warnings with Ghostscript.
• Make the PUA symbols that were in Libertinus Keyboard accessed as ligatures.
• Align the bottom of the colon with the period.
• Kern alternate W glyph similar to regular one.
• Harmonize the design of italic figures.
• Extend caps lining figures to (almost) all Serif faces and both proportional and tabular spacing.
• Fix Libertinus Serif Italic ђ, it looked like an т.
• Make few marks that combine two glyphs higher, so that they don’t bump into glyph ascenders.
• Lower Libertinus Mono asterisk and make it bigger.
• Make combining low line and over line contiguous.
• Make OpenType features more consistent across fonts.

• Align MATH AxisHeight with minus and similar operators.
• Align single and double arrows to minus and equal signs.
• Fix Celsius, Fahrenheit and Ohm signs to take the style of their fonts.
• Fix Ohm sign side bearings.
• Fix Service Mark and Trade Mark in sans fonts to take their style.
• Unify the default for of Eng glyph across fonts, and add and alternate shape
  for Sami language.
• Fix Cyrillic small letter ef in display font to match the regular serif font.
• Dropped some more unused PUA slots.
• The copyleft symbol now used the proposed Unicode 11 code point.

• Fix regressions in handling of extensible combining marks with LuaTeX.
• Add Latin bold italic sans-serif alphabet.
• Add mathematical double-struck digits.
• Enable slashed zero feature in math font.
• Add big sizes for more brackets; \lBrack, \rBrack, \langle, \rangle, \lAngle and \rAngle.
• Add big sizes of slash and backslash.
• Add \widetilde, \wideutilde and \widebreve.
• Fix side bearings of math blackboard capitals.
• Fix math glyphs with negative left side bearing that can clash with preceding glyphs.
• Make \vert and \Vert expansion consistent in size with the brackets.
• Remove tone bar glyphs; the support was not adequate for proper use.
• Remove math alphabet glyphs from text fonts.
• Fix glyphs incorrectly categorized as mark glyphs.
• Add Bitcoin currency symbol.
• Fix stacking of a-ring and macron.
• Fix “ct” and “st” historic ligatures and make them consistent across fonts.
• Fix mark positioning over AE and OE glyphs.
• Fix style of U+2100 (a/c), U+2101 (a/s), U+2015 (c/o) and U+2106 (c/u).
• Fix mark positioning over G and g glyphs.
• Make default and alternate J glyphs consistent across upright and italic fonts.
• Make U+00BA MASCULINE ORDINAL INDICATOR and U+00AA FEMININE ORDINAL INDICATOR
  have the same baseline in serif fonts.
• Position semibold serif i/j dot similar to other styles.
• Remove rudimentary MATH table from regular serif font.
• Fix alignment of U+2192, U+2198, U+2199 in the monospace font.
• Make more arrows fixed width in the monospace font.
• Make capital roman numbers in sans-serif and sans-serif italic fonts actually sans-serif.
• Make \product in sans-serif fonts actually sans-serif.
• The fonts can now be built with upstream FontForge, no patches needed, as well as Python 3.

Fix broken extensibles of the left square bracket in the math font.

• Add U+231C-231Fi and U+2A7D-2A7E to the math font.
• Add script math alphabet based on that of XITS Math font.
• Add monospaced math alphabet based on that of cmtt10 font with modified METAFONT parameters to better fit with Libertinus glyphs.
• Improve math top accent positions.
• Fix spacing of math italic i and j.
• Increase the gap between \sum and its limits.
• Improved math braces and brackets based on STIX Two Math font.
• Disable optical variants of math alphanumerics that were based on the text sup/superscript glyphs as they don’t look good besides being incomplete and inconsistent.
• Remove duplicate glyphs that caused broken GPOS generation.
• Drop optical bounds (‘opbd’, ‘rtbd’ and ‘lfbd’) features as they were incomplete and virtually unsupported.
• Fix text mark placement below O and o.
• Fix oldstyle numbers feature in Libertinus Serif Semibold that had wrong glyph mapping for 6, 7, 8 and 9.
• Use swash Q when followed by v.
• Various consistency fixes to font names and vertical metrics.
• Fix placement of the half ring in U+1E9A.
• Fix several Libertinus Serif Bold italic alternate glyphs that were not bold.
• Fix Libertinus Serif Italic U+2098-2099 (subscript m and n) that looked like superscript circled + and -.

• Fixed missing big variant rule for U+27EF.
• Fixed swapped \phi and \varphi symbols.
• Fixed “fi” ligature in Serif Semibold Italic with small caps feature on.
• The “Qu” ligature is now implemented as alternate glyph substitution.
• Added missing small cap Qu alternate glyph to serif fonts.
• Added big radical variants.

• Renamed the fonts from Libertine to Libertinus to be complaint with the Reserved Font Name clause of Linux Libertine license. Thanks to Frédéric Wang for the new name.
• Dropped legacy Mac platform font names.

This is the first release of the forked Libertine fonts, changes since the fork include:

• New Libertine Math font.
• Dropped the use of Unicode PUA for alternate glyphs in favour of making them
  encoded.
• Dropped the TrueType versions of the fonts.
• Dropped the Romanian-specific cedilla/comma substitution, it is no longer
  recommended to do this at font feature level.
• Fixed upstream font kerning regression.
• Renamed the glyphs to follow the recommended Adobe Glyph Names for New Fonts.
• Fixed lots of inconsistencies in the font files.
• Fixed the encoding of Indian Rubee symbol.
• Made the sans question mark a bit more sans-like.
• Fixed sans interrobang to not use the serif glyphs.
• Removed some bogus ligatures like “!!”, “??”, “...”, etc.
• Fixed the “short f” feature.
• Made the “bunny ears” glyphs with dieresis the alternate form, and made the
  more conventional form the default.
• Dropped the “aalt” feature, since it is of limited use and hard to keep up to
  date.
• Fixed diaeresis positioning in bold serif.
• Fixed the following upstream bugs:
  • http://sourceforge.net/p/linuxlibertine/bugs/315/
  • http://sourceforge.net/p/linuxlibertine/bugs/311/
  • http://sourceforge.net/p/linuxlibertine/bugs/303/
  • http://sourceforge.net/p/linuxlibertine/bugs/254/
  • http://sourceforge.net/p/linuxlibertine/bugs/293/
  • http://sourceforge.net/p/linuxlibertine/bugs/291/
  • http://sourceforge.net/p/linuxlibertine/bugs/275/
  • http://sourceforge.net/p/linuxlibertine/bugs/235/