Changes of version 27.0.2

Add Characters
- LATIN LETTER SMALL CAPITAL R WITH RIGHT LEG (U+AB46).
Add variants for Cyrillic lower Ef (ф) with a split bowl (#1992).
Add Bulgarian local variants for Cyrillic Ef (Ф,ф).
Fix serifs in U+01A6.
Improve serifs of Turn M (U+019C, U+026F) under quasi-proportional.
Make Turn h (U+0265) and Turn M with Long Leg (U+0270) follow serif variants of u.
Optimize geometry for U+A65A and U+A65B under extended width.
Fix assignment of 8 for ss14 (#1999).

Changes of version 27.0.1

Add Characters
- VERY MUCH LESS-THAN (U+22D8) (#1990).
- VERY MUCH GREATER-THAN (U+22D9) (#1990).

[Breaking] Variants for π, τ and « are inserted into the main tag sequence. As a consequence, variant features after them have the tags changed.
[Breaking] Reordered variants of Eszet.
[Breaking] Change of variant names:
- upper-r.straight-motion-serifed → upper-r.straight-top-left-serifed
- upper-r.curly-motion-serifed → upper-r.curly-top-left-serifed
- upper-r.standing-motion-serifed → upper-r.standing-top-left-serifed
- upper-r.straight-open-motion-serifed → upper-r.straight-open-top-left-serifed
- upper-r.curly-open-motion-serifed → upper-r.curly-open-top-left-serifed
- upper-r.standing-open-motion-serifed → upper-r.standing-open-top-left-serifed
Add characters:
- COMBINING RING OVERLAY (U+20D8).
Add bottom-right and top-left bottom-right serifed variants of R.
Add bottom-left motion serifed variants of Cyrillic Ya (Я,я).
Add cursive variants for Cyrillic Capital/Small Zhe (Ж,ж) (#1762).
Allow R Rotunda (U+A75A, U+A75B) and Indian Rupee Sign (U+20B9) to have a bottom-right serif.
Add OpenType zero feature (#1966).
Fix broken geometry of U+AB3A under condensed width.
Improve bowl shape of Latin Phi (U+0278).
Fix dot radius of COMBINING THREE DOTS ABOVE (U+20DB), COMBINING FOUR DOTS ABOVE (U+20DC), and COMBINING TRIPLE UNDERDOT (U+20D8).