Search results

IFT table bug - Incorrect lastEntryId initiation and missing implementation when entry Id could be a byte string in addition to integer

Status: Open.

#4134 In fonttools/fonttools;

· yChenMonotype opened on Jul 17, 2026

[instancer] instantiateCFF2 crashes with AttributeError on CFF2 fonts without a VariationStore

Status: Open.

#4130 In fonttools/fonttools;

· behdad opened on Jul 14, 2026

[instancer] instantiateCFF2 mishandles Private-dict vsindex (stale read, scalar subscripted, tracked per-operator instead of per-dict)

Status: Open.

#4129 In fonttools/fonttools;

· behdad opened on Jul 14, 2026

[ttLib] Improve support for bitmap-only sfnt / X11 OTB fonts with zero-length glyf table

Status: Open.

#4120 In fonttools/fonttools;

· TakWolf opened on Jul 2, 2026

GPOS pack fails (or hangs with uharfbuzz) when LookupList overflow needs splitting a SinglePos (type 1) subtable

Status: Open.

#4091 In fonttools/fonttools;

· AmitMY opened on May 16, 2026

[varLib.instancer] --update-name-table should search fvar instances as well as STAT

Status: Open.

#4086 In fonttools/fonttools;

· simoncozens opened on May 6, 2026

Add support for IFT and IFTX tables

Status: Open.

#4070 In fonttools/fonttools;

· wmedrano opened on Mar 22, 2026

[ufoLib] Needless writing of metainfo.plist

Status: Open.

#4068 In fonttools/fonttools;

· justvanrossum opened on Mar 17, 2026

Traceback in "feat" table in macOS system font

Status: Open.

#4021 In fonttools/fonttools;

· justvanrossum opened on Dec 28, 2025

Segfault in alpine image

Status: Open.

#3998 In fonttools/fonttools;

· SteinRobert opened on Dec 8, 2025

Improve typing of ttLib

Status: Open.

#3993 In fonttools/fonttools;

· madig opened on Dec 2, 2025

[varLib.interpolatable] documentation/UX issues

Status: Open.

#3984 In fonttools/fonttools;

· frankrolf opened on Nov 13, 2025