Release 3.10 is a mix of new glyphs & glyph changes, and adjustments & fixes.

New glyphs:

• blackSquare (U+25A0)
• whiteSquare (U+25A1)
• whiteRoundedCornersSquare (U+25A2)
• lowerHalfWhiteSquare (U+2B12)
• topHalfWhiteSquare (U+2B13)
• downWhiteTriangle (U+25BD)
• upWhiteTriangle (U+25B3)
• leftWhiteTriangle (U+25C1, U+25C5)
• rightWhiteTriangle (U+25B7, U+25BB)

Other notable changes:

• Fixes alignment issue with otilde U+00F5. #191
• Improvements to contextual alternates (calt), primarily reducing the cases where case substitution is unwanted. #193
• Adjustments to the following whitespace glyphs: zerowidthspace, hairspace, thinspace, punctuationspace, enspace, emspace, sixthemspace, quarteremspace, thirdemspace and figurespace. #185
• Improvements to ogonek-based diacritics.
• Refinements and improvements to fractions (both dedicated glyphs and arbitrary frac parts)
• Kerning improvements to all weights
• Progress on mark and mkmk “dynamic diacritics”

All changes: https://github.com/rsms/inter/compare/v3.9...v3.10

Some new geometric glyphs:

Progress on mark and mkmk “dynamic diacritics”: (still work in progress)

Improvements to calt exceptions:

Fractions:

Whitespace: