• [ttLib] Add support for Apple Color Emoji bgcl table (#4065).
• [ttLib] Add support for IFT and IFTX tables (Incremental Font Transfer, PatchMapFormat2) (#4070, #4072).
• [otData] Introduce FieldSpec dataclass for OpenType table schema definitions, replacing raw tuples in otData.py (#4076).
• [Feat] Show name table strings as comments next to label IDs in TTX output, matching the convention used by fvar, STAT, trak (#4089).
• [cu2qu] Fix Cython complex-division rounding difference in split_cubic_into_three that could cause ±1 off-curve coordinate shifts (#3928, #4083).
• [designspaceLib] Fix map_backward for many-to-one (flat-segment) axis maps that silently dropped entries via dict comprehension (googlefonts/ufo2ft#978, #4085).
• [OS/2] Fix setUnicodeRanges to accept reserved bits 123-127, restoring round-trip with getUnicodeRanges and fixing recalcUnicodeRanges crash in the subsetter (#4087, #4088).
• [cython] Declare Cython extensions as free-threading compatible on Python 3.13+, so that importing them on free-threaded Python no longer re-enables the GIL (#4073, #4090).