Update fonttools to 4.63.0 by pyup-bot · Pull Request #1043 · fake-name/ReadableWebProxy

pyup-bot · 2026-07-13T16:02:06Z

This PR updates fontTools from 4.27.1 to 4.63.0.

Changelog

4.63.0

----------------------------

- [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/ufo2ft978, 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).

4.62.1

----------------------------

- [feaLib] Extend contextual rule merging to all rule types: single subst, GSUB/GPOS
named lookups, ignore rules, and chained alternate subst (4061).

4.62.0

----------------------------

- [diff] Add new ``fonttools diff`` command for comparing font files, imported from the
``fdiff`` project and heavily reworked (1190, 4007, 4009, 4011, 4013, 4019).
- [feaLib] Fix ``VariableScalar`` interpolation bug with non-linear avar mappings. Also
decouple ``VariableScalar`` from compiled fonts, allowing it to work with designspace data
before compilation (3938, 4054).
- [feaLib] Fix ``VariableScalar`` axis ordering and iterative delta rounding to match fontc
behavior (4053).
- [feaLib] Merge chained multi subst rules with same context into a single subtable instead of
emitting one subtable per glyph (4016, 4058).
- [feaLib] Pass location to ``ConditionsetStatement`` to fix glyphsLib round-tripping
(fontra/fontra-glyphs130, 4057).
- [feaLib] Write ``0xFFFF`` instead of ``0`` for missing nameIDs in ``cv`` feature params
(4010, 4012).
- [cmap] Fix ``CmapSubtable.__lt__()`` ``TypeError`` on Python 3 when subtables share the
same encoding record, and add compile-time validation for unique encoding records (4035,
4055).
- [svgLib] Skip non-element XML nodes (comments, processing instructions) when drawing SVG
paths (4042, 4043).
- [glifLib] Fix regression reading glyph outlines when ``glyphObject=None`` (4030, 4031).
- [pointPen] Fix ``SegmentToPointPen`` edge case: only remove a duplicate final point on
``closePath()`` if it is an on-curve point (4014, 4015).
- [cffLib] **SECURITY** Replace ``eval()`` with ``safeEval()`` in ``parseBlendList()`` to
prevent arbitrary code execution from crafted TTX files (4039, 4040).
- [ttLib] Remove defunct Adobe SING Glyphlet tables (``META``, ``SING``, ``GMAP``, ``GPKG``)
(4044).
- [varLib.interpolatable] Various bugfixes: fix swapped nodeTypes assignment, duplicate
kink-detector condition, typos, CFF2 vsindex parsing, glyph existence check, and plot
helpers (4046).
- [varLib.models] Fix ``getSubModel`` not forwarding ``extrapolate``/``axisRanges``; check
location uniqueness after stripping zeros (4047).
- [varLib] Fix ``--variable-fonts`` filter in ``build_many``; remove dead code and fix
comments (4048).
- [avar] Preserve existing name table in build; keep ``unbuild`` return types consistent;
validate ``map`` CLI coordinates (4051).
- [cu2qu/qu2cu] Add input validation: reject non-positive tolerances, validate curve inputs
and list lengths (4052).
- [colorLib] Raise a clear ``ColorLibError`` when base glyphs are missing from glyphMap,
instead of a confusing ``KeyError`` (4041).
- [glyf] Remove unnecessary ``fvar`` table dependency (4017).
- [fvar/trak] Remove unnecessary ``name`` table dependency (4018).
- [ufoLib] Relax guideline validation to follow the updated spec (3537, 3553).
- [ttFont] Fix ``saveXML`` regression with empty table lists, clarify docstring (4025, 4026,
4056).
- [setup.py] Link ``libm`` for Cython extensions using math functions (4028, 4029).
- Add typing annotations for ``DSIG``, ``DefaultTable``, ``ttProgram`` (4033).

4.61.1

----------------------------

- [otlLib] buildCoverage: return empty Coverage instead of None (4003, 4004).
- [instancer] bug fix in ``avar2`` full instancing (4002).
- [designspaceLib] Preserve empty conditionsets when serializing to XML (4001).
- [fontBu ilder] Fix FontBuilder ``setupOS2()`` default params globally polluted (3996, 3997).
- [ttFont] Add more typing annotations to ttFont, xmlWriter, sfnt, varLib.models and others (3952, 3826).
- Explicitly test and declare support for Python 3.14, even though we were already shipping pre-built wheels for it (3990).

4.61.0

----------------------------

- [varLib.main]: **SECURITY** Only use basename(vf.filename) to prevent path traversal attacks when
running ``fonttools varLib`` command, or code which invokes ``fonttools.varLib.main()``.
Fixes CVE-2025-66034, see:
https://github.com/fonttools/fonttools/security/advisories/GHSA-768j-98cg-p3fv.
- [feaLib] Sort BaseLangSysRecords by tag (3986).
- Drop support for EOL Python 3.9 (3982).
- [instancer] Support --remove-overlaps for fonts with CFF2 table (3975).
- [CFF2ToCFF] Add --remove-overlaps option (3976).
- [feaLib] Raise an error for rsub with NULL target (3979).
- [bezierTools] Fix logic bug in curveCurveIntersections (3963).
- [feaLib] Error when condition sets have the same name (3958).
- [cu2qu.ufo] skip processing empty glyphs to support sparse kerning masters (3956).
- [unicodedata] Update to Unicode 17. Require ``unicodedata2 &gt;= 17.0.0`` when installed with &#x27;unicode&#x27; extra.

4.60.2

----------------------------

- **Backport release** Same as 4.61.0 but without &quot;Drop support for EOL Python 3.9&quot; change to allow
downstream projects still on Python 3.9 to avail of the security fix for CVE-2025-66034 (3994, 3999).

4.60.1

----------------------------

- [ufoLib] Reverted accidental method name change in ``UFOReader.getKerningGroupConversionRenameMaps``
that broke compatibility with downstream projects like defcon (3948, 3947, robotools/defcon478).
- [ufoLib] Added test coverage for ``getKerningGroupConversionRenameMaps`` method (3950).
- [subset] Don&#x27;t try to subset BASE table; pass it through by default instead (3949).
- [subset] Remove empty BaseRecord entries in MarkBasePos lookups (3897, 3892).
- [subset] Add pruning for MarkLigPos and MarkMarkPos lookups (3946).
- [subset] Remove duplicate features when subsetting (3945).
- [Docs] Added documentation for the visitor module (3944).

4.60.0

----------------------------

- [pointPen] Allow ``reverseFlipped`` parameter of ``DecomposingPointPen`` to take a ``ReverseFlipped``
enum value to control whether/how to reverse contour direction of flipped components, in addition to
the existing True/False. This allows to set ``ReverseFlipped.ON_CURVE_FIRST`` to ensure that
the decomposed outline starts with an on-curve point before being reversed, for better consistency
with other segment-oriented contour transformations. The change is backward compatible, and the
default behavior hasn&#x27;t changed (3934).
- [filterPen] Added ``ContourFilterPointPen``, base pen for buffered contour operations, and
``OnCurveStartPointPen`` filter to ensure contours start with an on-curve point (3934).
- [cu2qu] Fixed difference in cython vs pure-python complex division by real number (3930).
- [varLib.avar] Refactored and added some new sub-modules and scripts (3926).
* ``varLib.avar.build`` module to build avar (and a missing fvar) binaries into a possibly empty TTFont,
* ``varLib.avar.unbuild`` module to print a .designspace snippet that would generate the same avar binary,
* ``varLib.avar.map`` module to take TTFont and do the mapping, in user/normalized space,
* ``varLib.avar.plan`` module moved from ``varLib.avarPlanner``.
The bare ``fonttools varLib.avar`` script is deprecated, in favour of ``fonttools varLib.avar.build`` (or ``unbuild``).
- [interpolatable] Clarify ``linear_sum_assignment`` backend options and minimal dependency
usage (3927).
- [post] Speed up ``build_psNameMapping`` (3923).
- [ufoLib] Added typing annotations to fontTools.ufoLib (3875).

4.59.2

----------------------------

- [varLib] Clear ``USE_MY_METRICS`` component flags when inconsistent across masters (3912).
- [varLib.instancer] Avoid negative advance width/height values when instatiating HVAR/VVAR,
(unlikely in well-behaved fonts) (3918).
- [subset] Fix shaping behaviour when pruning empty mark sets (3915, harfbuzz/harfbuzz5499).
- [cu2qu] Fixed ``dot()`` product of perpendicular vectors not always returning exactly 0.0
in all Python implementations (3911)
- [varLib.instancer] Implemented fully-instantiating ``avar2`` fonts (3909).
- [feaLib] Allow float values in ``VariableScalar``&#x27;s axis locations (3906, 3907).
- [cu2qu] Handle special case in ``calc_intersect`` for degenerate cubic curves where 3 to 4
control points are equal (3904).

4.59.1

----------------------------

- [featureVars] Update OS/2.usMaxContext if possible after addFeatureVariationsRaw (3894).
- [vhmtx] raise TTLibError(&#x27;not enough data...&#x27;) when hmtx/vmtx are truncated (3843, 3901).
- [feaLib] Combine duplicate features that have the same set of lookups regardless of the order in which those lookups are added to the feature (3895).
- [varLib] Deprecate ``varLib.mutator`` in favor of ``varLib.instancer``. The latter
provides equivalent full (static font) instancing in addition to partial VF instancing.
CLI users should replace ``fonttools varLib.mutator`` with ``fonttools varLib.instancer``.
API users should migrate to ``fontTools.varLib.instancer.instantiateVariableFont`` (2680).

4.59.0

----------------------------

- Removed hard-dependency on pyfilesystem2 (``fs`` package) from ``fonttools[ufo]`` extra.
This is replaced by the `fontTools.misc.filesystem` package, a stdlib-only, drop-in
replacement for the subset of the pyfilesystem2&#x27;s API used by ``fontTools.ufoLib``.
The latter should continue to work with the upstream ``fs`` (we even test with/without).
Clients who wish to continue using ``fs`` can do so by depending on it directly instead
of via the ``fonttools[ufo]`` extra (3885, 3620).
- [xmlWriter] Replace illegal XML characters (e.g. control or non-characters) with &quot;?&quot;
when dumping to ttx (3868, 71).
- [varLib.hvar] Fixed vertical metrics fields copy/pasta error (3884).
- Micro optimizations in ttLib and sstruct modules (3878, 3879).
- [unicodedata] Add Garay script to RTL_SCRIPTS (3882).
- [roundingPen] Remove unreliable kwarg usage. Argument names aren’t consistent among
point pens’ ``.addComponent()`` implementations, in particular ``baseGlyphName``
vs ``glyphName`` (3880).

4.58.5

----------------------------

- [feaLib] Don&#x27;t try to combine ligature &amp; multisub rules (3874).
- [feaLib/ast] Use weakref proxies to avoid cycles in visitor (3873).
- [varLib.instancer] Fixed instancing CFF2 fonts where VarData contains more than 64k items (3858).

4.58.4

----------------------------

- [feaLib] Allow for empty MarkFilter &amp; MarkAttach sets (3856).

4.58.3

----------------------------

- [feaLib] Fixed iterable check for Python 3.13.4 and newer (3854, 3855).

4.58.2

----------------------------

- [ttLib.reorderGlyphs] Handle CFF2 when reordering glyphs (3852)
- [subset] Copy name IDs in use before scrapping or scrambling them for webfonts (3853)

4.58.1

----------------------------

- [varLib] Make sure that fvar named instances only reuse name ID 2 or 17 if they are at the default location across all axes, to match OT spec requirement (3831).
- [feaLib] Improve single substitution promotion to multiple/ligature substitutions, fixing a few bugs as well (3849).
- [loggingTools] Make ``Timer._time`` a static method that doesn&#x27;t take self, makes it easier to override (3836).
- [featureVars] Use ``None`` for empty ConditionSet, which translates to a null offset in the compiled table (3850).
- [feaLib] Raise an error on conflicting ligature substitution rules instead of silently taking the last one (3835).
- Add typing annotations to T2CharStringPen (3837).
- [feaLib] Add single substitutions that were promoted to multiple or ligature substitutions to ``aalt`` feature (3847).
- [featureVars] Create a default ``LangSys`` in a ``ScriptRecord`` if missing when adding feature variations to existing GSUB later in the build (3838).
- [symfont] Added a ``main()``.
- [cffLib.specializer] Fix rmoveto merging when blends used (3839, 3840).
- [pyftmerge] Add support for cmap format 14 in the merge tool (3830).
- [varLib.instancer/cff2] Fix vsindex of Private dicts when instantiating (3828, 3232).
- Update text file read to use UTF-8 with optional BOM so it works with e.g. Windows Notepad.exe (3824).
- [varLib] Ensure that instances only reuse name ID 2 or 17 if they are at the default location across all axes (3831).
- [varLib] Create a dflt LangSys in a ScriptRecord when adding variations later, to fix an avoidable crash in an edge case (3838).

4.58.0

----------------------------

- Drop Python 3.8, require 3.9+ (3819)
- [HVAR, VVAR] Prune unused regions when using a direct mapping (3797)
- [Docs] Improvements to ufoLib documentation (3721)
- [Docs] Improvements to varLib documentation (3727)
- [Docs] Improvements to Pens and pen-module documentation (3724)
- [Docs] Miscellany updates to docs (misc modules and smaller modules) (3730)
- [subset] Close codepoints over BiDi mirror variants. (3801)
- [feaLib] Fix serializing ChainContextPosStatement and
ChainContextSubstStatement in some rare cases (3788)
- [designspaceLib] Clarify user expectations for getStatNames (2892)
- [GVAR] Add support for new `GVAR` table (3728)
- [TSI0, TSI5] Derive number of entries to decompile from data length (2477)
- [ttLib] Fix `AttributeError` when reporting table overflow (3808)
- [ttLib] Apply rounding more often in getCoordinates (3798)
- [ttLib] Ignore component bounds if empty (3799)
- [ttLib] Change the separator for duplicate glyph names from &quot;&quot; to &quot;.&quot; (3809)
- [feaLib] Support subtable breaks in CursivePos, MarkBasePos, MarkToLigPos and
MarkToMarkPos lookups (3800, 3807)
- [feaLib] If the same lookup has single substitutions and ligature
substitutions, upgrade single substitutions to ligature substitutions with
one input glyph (3805)
- [feaLib] Correctly handle &lt;NULL&gt; in single pos lookups (3803)
- [feaLib] Remove duplicates from class pair pos classes instead of raising an
error (3804)
- [feaLib] Support creating extension lookups using useExtenion lookup flag
instead of silently ignoring it (3811)
- [STAT] Add typing for the simpler STAT arguments (3812)
- [otlLib.builder] Add future import for annotations (3814)
- [cffLib] Fix reading supplement encoding (3813)
- [voltLib] Add some missing functionality and fixes to voltLib and VoltToFea,
making the conversion to feature files more robust. Add also `fonttools
voltLib` command line tool to compile VOLT sources directly (doing an
intermediate fea conversion internally) (3818)
- [pens] Add some PointPen annotations (3820)

4.57.0

----------------------------

- [ttLib.__main__] Add `--no-recalc-timestamp` flag (3771)
- [ttLib.__main__] Add `-b` (recalcBBoxes=False) flag (3772)
- [cmap] Speed up glyphOrder loading from cmap (3774)
- [ttLib.__main__] Improvements around the `-t` flag (3776)
- [Debg] Fix parsing from XML; add roundtrip tests (3781)
- [fealib] Support \*Base.MinMax tables (3783, 3786)
- [config] Add OPTIMIZE_FONT_SPEED (3784)
- [varLib.hvar] New module to add HVAR table to the font (3780)
- [otlLib.optimize] Fix crash when the provided TTF does not contain a `GPOS` (3794)

4.56.0

----------------------------

- [varStore] Sort the input todo list with the same sorting key used for the opimizer&#x27;s output (3767).
- [otData] Fix DeviceTable&#x27;s ``DeltaValue`` repeat value which caused a crash after importing from XML and then compiling a GPOS containing Device tables (3758).
- [feaLib] Make ``FeatureLibError`` pickleable, so client can e.g. use feaLib to can compile features in parallel with multiprocessing (3762).
- [varLib/gvar] Removed workaround for old, long-fixed macOS bug about composite glyphs with all zero deltas (1381, 1788).
- [Docs] Updated ttLib documentation, beefed up TTFont and TTGlyphSet explanations (3720).

4.55.8

----------------------------

- [MetaTools] Fixed bug in buildUCD.py script whereby the first non-header line of some UCD text file was being skipped. This affected in particular the U+00B7 (MIDDLE DOT) entry of ScriptExtensions.txt (3756).

4.55.7

----------------------------

- Shorten the changelog included in PyPI package description to accommodate maximum length limit imposed by Azure DevOps. No actual code changes since v4.55.6 (3754).

4.55.6

----------------------------

- [glyf] Fixed regression introduced in 4.55.5 when computing bounds of nested composite glyphs  with transformed components (3752).

4.55.5

----------------------------

- [glyf] Fixed recalcBounds of transformed components with unrounded coordinates (3750).
- [feaLib] Allow duplicate script/language statements (3749).

4.55.4

----------------------------

- [bezierTools] Fixed ``splitCubicAtT`` sometimes not returning identical start/end points as result of numerical precision (3742, 3743).
- [feaLib/ast] Fixed docstring of ``AlternateSubstStatement`` (3735).
- [transform] Typing fixes (3734).

4.55.3

----------------------------

- [Docs] fill out ttLib table section [3716]
- [feaLib] More efficient inline format 4 lookups [3726]

4.55.2

----------------------------

- [Docs] update Sphinx config (3712)
- [designspaceLib] Allow axisOrdering to be set to zero (3715)
- [feaLib] Don’t modify variable anchors in place (3717)

4.55.1

----------------------------

- [ttGlyphSet] Support VARC CFF2 fonts (3683)
- [DecomposedTransform] Document and implement always skewY == 0 (3697)
- [varLib] &quot;Fix&quot; cython iup issue? (3704)
- Cython minor refactor (3705)

4.55.0

----------------------------

- [cffLib.specializer] Adjust stack use calculation (3689)
- [varLib] Lets not add mac names if the rest of name doesn&#x27;t have them (3688)
- [ttLib.reorderGlyphs] Update CFF table charstrings and charset (3682)
- [cffLib.specializer] Add cmdline to specialize a CFF2 font (3675, 3679)
- [CFF2] Lift uint16 VariationStore.length limitation (3674)
- [subset] consider variation selectors subsetting cmap14 (3672)
- [varLib.interpolatable] Support CFF2 fonts (3670)
- Set isfinal to true in XML parser for proper resource cleanup (3669)
- [removeOverlaps] Fix CFF CharString width (3659)
- [glyf] Add optimizeSize option (3657)
- Python 3.13 support (3656)
- [TupleVariation] Optimize for loading speed, not size (3650, 3653)

4.54.1

----------------------------

- [unicodedata] Update to Unicode 16
- [subset] Escape ``\\`` in doc string

4.54.0

----------------------------

- [Docs] Small docs cleanups by n8willis (3611)
- [Docs] cleanup code blocks by n8willis (3627)
- [Docs] fix Sphinx builds by n8willis (3625)
- [merge] Minor fixes to documentation for merge by drj11 (3588)
- [subset] Small tweaks to pyftsubset documentation by RoelN (3633)
- [Tests] Do not require fonttools command to be available by behdad (3612)
- [Tests] subset_test: add failing test to reproduce issue 3616 by anthrotype (3622)
- [ttLib] NameRecordVisitor: include whole sequence of character variants&#x27; UI labels, not just the first by anthrotype (3617)
- [varLib.avar] Reconstruct mappings from binary by behdad (3598)
- [varLib.instancer] Fix visual artefacts with partial L2 instancing by Hoolean (3635)
- [varLib.interpolatable] Support discrete axes in .designspace by behdad (3599)
- [varLib.models] By default, assume OpenType-like normalized space by behdad (3601)

4.53.1

----------------------------

- [feaLib] Improve the sharing of inline chained lookups (3559)
- [otlLib] Correct the calculation of OS/2.usMaxContext with reversed chaining contextual single substitutions (3569)
- [misc.visitor] Visitors search the inheritance chain of objects they are visiting (3581)

4.53.0

----------------------------

- [ttLib.removeOverlaps] Support CFF table to aid in downconverting CFF2 fonts (3528)
- [avar] Fix crash when accessing not-yet-existing attribute (3550)
- [docs] Add buildMathTable to otlLib.builder documentation (3540)
- [feaLib] Allow UTF-8 with BOM when reading features (3495)
- [SVGPathPen] Revert rounding coordinates to two decimal places by default (3543)
- [varLib.instancer] Refix output filename decision-making  (3545, 3544, 3548)

4.52.4

----------------------------

- [varLib.cff] Restore and deprecate convertCFFtoCFF2 that was removed in 4.52.0
release as it is used by downstream projects (3535).

4.52.3

----------------------------

- Fixed a small syntax error in the reStructuredText-formatted NEWS.rst file
which caused the upload to PyPI to fail for 4.52.2. No other code changes.

4.52.2

----------------------------

- [varLib.interpolatable] Ensure that scipy/numpy output is JSON-serializable
(3522, 3526).
- [housekeeping] Regenerate table lists, to fix pyinstaller packaging of the new
``VARC`` table (3531, 3529).
- [cffLib] Make CFFToCFF2 and CFF2ToCFF more robust (3521, 3525).

4.52.1

----------------------------

- Fixed a small syntax error in the reStructuredText-formatted NEWS.rst file
which caused the upload to PyPI to fail for 4.52.0. No other code changes.

4.52.0

----------------------------

- Added support for the new ``VARC`` (Variable Composite) table that is being
proposed to OpenType spec (3395). For more info:
https://github.com/harfbuzz/boring-expansion-spec/blob/main/VARC.md
- [ttLib.__main__] Fixed decompiling all tables (90fed08).
- [feaLib] Don&#x27;t reference the same lookup index multiple times within the same
feature record, it is only applied once anyway (3520).
- [cffLib] Moved methods to desubroutinize, remove hints and unused subroutines
from subset module to cffLib (3517).
- [varLib.instancer] Added support for partial-instancing CFF2 tables! Also, added
method to down-convert from CFF2 to CFF 1.0, and CLI entry points to convert
CFF&lt;-&gt;CFF2 (3506).
- [subset] Prune unused user name IDs even with --name-IDs=&#x27;*&#x27; (3410).
- [ttx] use GNU-style getopt to intermix options and positional arguments (3509).
- [feaLib.variableScalar] Fixed ``value_at_location()`` method (3491)
- [psCharStrings] Shorten output of ``encodeFloat`` (3492).
- [bezierTools] Fix infinite-recursion in ``calcCubicArcLength`` (3502).
- [avar2] Implement ``avar2`` support in ``TTFont.getGlyphSet()`` (3473).

4.51.0

----------------------------

- [ttLib] Optimization on loading aux fields (3464).
- [ttFont] Add reorderGlyphs (3468).

4.50.0

----------------------------

- [pens] Added decomposing filter pens that draw components as regular contours (3460).
- [instancer] Drop explicit no-op axes from TupleVariations (3457).
- [cu2qu/ufo] Return set of modified glyph names from fonts_to_quadratic (3456).

4.49.0

----------------------------

- [otlLib] Add API for building ``MATH`` table (3446)

4.48.1

----------------------------

- Fixed uploading wheels to PyPI, no code changes since v4.48.0.

4.48.0

----------------------------

- [varLib] Do not log when there are no OTL tables to be merged.
- [setup.py] Do not restrict lxml&lt;5 any more, tests pass just fine with lxml&gt;=5.
- [feaLib] Remove glyph and class names length restrictions in FEA (3424).
- [roundingPens] Added ``transformRoundFunc`` parameter to the rounding pens to allow
for custom rounding of the components&#x27; transforms (3426).
- [feaLib] Keep declaration order of ligature components within a ligature set, instead
of sorting by glyph name (3429).
- [feaLib] Fixed ordering of alternates in ``aalt`` lookups, following the declaration
order of feature references within the ``aalt`` feature block (3430).
- [varLib.instancer] Fixed a bug in the instancer&#x27;s IUP optimization (3432).
- [sbix] Support sbix glyphs with new graphicType &quot;flip&quot; (3433).
- [svgPathPen] Added ``--glyphs`` option to dump the SVG paths for the named glyphs
in the font (0572f78).
- [designspaceLib] Added &quot;description&quot; attribute to ``&lt;mappings&gt;`` and ``&lt;mapping&gt;``
elements, and allow multiple ``&lt;mappings&gt;`` elements to group ``&lt;mapping&gt;`` elements
that are logically related (3435, 3437).
- [otlLib] Correctly choose the most compact GSUB contextual lookup format (3439).

4.47.2

----------------------------

Minor release to fix uploading wheels to PyPI.

4.47.1

----------------------------

- [merge] Improve help message and add standard command line options (3408)
- [otlLib] Pass ``ttFont`` to ``name.addName`` in ``buildStatTable`` (3406)
- [featureVars] Re-use ``FeatureVariationRecord``&#x27;s when possible (3413)

4.47.0

----------------------------

- [varLib.models] New API for VariationModel: ``getMasterScalars`` and
``interpolateFromValuesAndScalars``.
- [varLib.interpolatable] Various bugfixes and rendering improvements. In particular,
add a Summary page in the front, and an Index and Table-of-Contents in the back.
Change the page size to Letter.
- [Docs/designspaceLib] Defined a new ``public.fontInfo`` lib key, not used anywhere yet (3358).

4.46.0

----------------------------

- [featureVars] Allow to register the same set of substitution rules to multiple features.
The ``addFeatureVariations`` function can now take a list of featureTags; similarly, the
lib key &#x27;com.github.fonttools.varLib.featureVarsFeatureTag&#x27; can now take a
comma-separateed string of feature tags (e.g. &quot;salt,ss01&quot;) instead of a single tag (3360).
- [featureVars] Don&#x27;t overwrite GSUB FeatureVariations, but append new records to it
for features which are not already there. But raise ``VarLibError`` if the feature tag
already has feature variations associated with it (3363).
- [varLib] Added ``addGSUBFeatureVariations`` function to add GSUB Feature Variations
to an existing variable font from rules defined in a DesignSpace document (3362).
- [varLib.interpolatable] Various bugfixes and rendering improvements. In particular,
a new test for &quot;underweight&quot; glyphs. The new test reports quite a few false-positives
though. Please send feedback.

4.45.1

----------------------------

- [varLib.interpolatable] Various bugfixes and improvements, better reporting, reduced
false positives.
- [ttGlyphSet] Added option to not recalculate glyf bounds (3348).

4.45.0

----------------------------

- [varLib.interpolatable] Vastly improved algorithms. Also available now is ``--pdf``
and ``--html`` options to generate a PDF or HTML report of the interpolation issues.
The PDF/HTML report showcases the problematic masters, the interpolated broken
glyph, as well as the proposed fixed version.

4.44.3

----------------------------

- [subset] Only prune codepage ranges for OS/2.version &gt;= 1, ignore otherwise (3334).
- [instancer] Ensure hhea vertical metrics stay in sync with OS/2 ones after instancing
MVAR table containing &#x27;hasc&#x27;, &#x27;hdsc&#x27; or &#x27;hlgp&#x27; tags (3297).

4.44.2

----------------------------

- [glyf] Have ``Glyph.recalcBounds`` skip empty components (base glyph with no contours)
when computing the bounding box of composite glyphs. This simply restores the existing
behavior before some changes were introduced in fonttools 4.44.0 (3333).

4.44.1

----------------------------

- [feaLib] Ensure variable mark anchors are deep-copied while building since they
get modified in-place and later reused (3330).
- [OS/2|subset] Added method to ``recalcCodePageRanges`` to OS/2 table class; added
``--prune-codepage-ranges`` to `fonttools subset` command (3328, 2607).

4.44.0

----------------------------

- [instancer] Recalc OS/2 AvgCharWidth after instancing if default changes (3317).
- [otlLib] Make ClassDefBuilder class order match varLib.merger&#x27;s, i.e. large
classes first, then glyph lexicographic order (3321, 3324).
- [instancer] Allow not specifying any of min:default:max values and let be filled
up with fvar&#x27;s values (3322, 3323).
- [instancer] When running --update-name-table ignore axes that have no STAT axis
values (3318, 3319).
- [Debg] When dumping to ttx, write the embedded JSON as multi-line string with
indentation (92cbfee0d).
- [varStore] Handle &gt; 65535 items per encoding by splitting VarData subtable (3310).
- [subset] Handle null-offsets in MarkLigPos subtables.
- [subset] Keep East Asian spacing fatures vhal, halt, chws, vchw by default (3305).
- [instancer.solver] Fixed case where axisDef &lt; lower and upper &lt; axisMax (3304).
- [glyf] Speed up compilation, mostly around ``recalcBounds`` (3301).
- [varLib.interpolatable] Speed it up when working on variable fonts, plus various
micro-optimizations (3300).
- Require unicodedata2 &gt;= 15.1.0 when installed with &#x27;unicode&#x27; extra, contains UCD 15.1.

4.43.1

----------------------------

- [EBDT] Fixed TypeError exception in `_reverseBytes` method triggered when dumping
some bitmap fonts with `ttx -z bitwise` option (3162).
- [v/hhea] Fixed UnboundLocalError exception in ``recalc`` method when no vmtx or hmtx
tables are present (3290).
- [bezierTools] Fixed incorrectly typed cython local variable leading to TypeError when
calling ``calcQuadraticArcLength`` (3288).
- [feaLib/otlLib] Better error message when building Coverage table with missing glyph (3286).

4.43.0

----------------------------

- [subset] Set up lxml ``XMLParser(resolve_entities=False)`` when parsing OT-SVG documents
to prevent XML External Entity (XXE) attacks (9f61271dc):
https://codeql.github.com/codeql-query-help/python/py-xxe/
- [varLib.iup] Added workaround for a Cython bug in ``iup_delta_optimize`` that was
leading to IUP tolerance being incorrectly initialised, resulting in sub-optimal deltas
(60126435d, cython/cython5732).
- [varLib] Added new command-line entry point ``fonttools varLib.avar`` to add an
``avar`` table to an existing VF from axes mappings in a .designspace file (0a3360e52).
- [instancer] Fixed bug whereby no longer used variation regions were not correctly pruned
after VarData optimization (3268).
- Added support for Python 3.12 (3283).

4.42.1

----------------------------

- [t1Lib] Fixed several Type 1 issues (3238, 3240).
- [otBase/packer] Allow sharing tables reached by different offset sizes (3241, 3236).
- [varLib/merger] Fix Cursive attachment merging error when all anchors are NULL (3248, 3247).
- [ttLib] Fixed warning when calling ``addMultilingualName`` and ``ttFont`` parameter was not
passed on to ``findMultilingualName`` (3253).

4.42.0

----------------------------

- [varLib] Use sentinel value 0xFFFF to mark a glyph advance in hmtx/vmtx as non
participating, allowing sparse masters to contain glyphs for variation purposes other
than {H,V}VAR (3235).
- [varLib/cff] Treat empty glyphs in non-default masters as missing, thus not participating
in CFF2 delta computation, similarly to how varLib already treats them for gvar (3234).
- Added varLib.avarPlanner script to deduce &#x27;correct&#x27; avar v1 axis mappings based on
glyph average weights (3223).

4.41.1

----------------------------

- [subset] Fixed perf regression in v4.41.0 by making ``NameRecordVisitor`` only visit
tables that do contain nameID references (3213, 3214).
- [varLib.instancer] Support instancing fonts containing null ConditionSet offsets in
FeatureVariationRecords (3211, 3212).
- [statisticsPen] Report font glyph-average weight/width and font-wide slant.
- [fontBuilder] Fixed head.created date incorrectly set to 0 instead of the current
timestamp, regression introduced in v4.40.0 (3210).
- [varLib.merger] Support sparse ``CursivePos`` masters (3209).

4.41.0

----------------------------

- [fontBuilder] Fixed bug in setupOS2 with default panose attribute incorrectly being
set to a dict instead of a Panose object (3201).
- [name] Added method to ``removeUnusedNameRecords`` in the user range (3185).
- [varLib.instancer] Fixed issue with L4 instancing (moving default) (3179).
- [cffLib] Use latin1 so we can roundtrip non-ASCII in {Full,Font,Family}Name (3202).
- [designspaceLib] Mark &lt;source name=&quot;...&quot;&gt; as optional in docs (as it is in the code).
- [glyf-1] Fixed drawPoints() bug whereby last cubic segment becomes quadratic (3189, 3190).
- [fontBuilder] Propagate the &#x27;hidden&#x27; flag to the fvar Axis instance (3184).
- [fontBuilder] Update setupAvar() to also support avar 2, fixing ``_add_avar()`` call
site (3183).
- Added new ``voltLib.voltToFea`` submodule (originally Tiro Typeworks&#x27; &quot;Volto&quot;) for
converting VOLT OpenType Layout sources to FEA format (3164).

4.40.0

----------------------------

- Published native binary wheels to PyPI for all the python minor versions and platform
and architectures currently supported that would benefit from this. They will include
precompiled Cython-accelerated modules (e.g. cu2qu) without requiring to compile them
from source. The pure-python wheel and source distribution will continue to be
published as always (pip will automatically chose them when no binary wheel is
available for the given platform, e.g. pypy). Use ``pip install --no-binary=fonttools fonttools``
to expliclity request pip to install from the pure-python source.
- [designspaceLib|varLib] Add initial support for specifying axis mappings and build
``avar2`` table from those (3123).
- [feaLib] Support variable ligature caret position (3130).
- [varLib|glyf] Added option to --drop-implied-oncurves; test for impliable oncurve
points either before or after rounding (3146, 3147, 3155, 3156).
- [TTGlyphPointPen] Don&#x27;t error with empty contours, simply ignore them (3145).
- [sfnt] Fixed str vs bytes remnant of py3 transition in code dealing with de/compiling
WOFF metadata (3129).
- [instancer-solver] Fixed bug when moving default instance with sparse masters (3139, 3140).
- [feaLib] Simplify variable scalars that don’t vary (3132).
- [pens] Added filter pen that explicitly emits closing line when lastPt != movePt (3100).
- [varStore] Improve optimize algorithm and better document the algorithm (3124, 3127).
Added ``quantization`` option (3126).
- Added CI workflow config file for building native binary wheels (3121).
- [fontBuilder] Added glyphDataFormat=0 option; raise error when glyphs contain cubic
outlines but glyphDataFormat was not explicitly set to 1 (3113, 3119).
- [subset] Prune emptied GDEF.MarkGlyphSetsDef and remap indices; ensure GDEF is
subsetted before GSUB and GPOS (3114, 3118).
- [xmlReader] Fixed issue whereby DSIG table data was incorrectly parsed (3115, 2614).
- [varLib/merger] Fixed merging of SinglePos with pos=0 (3111, 3112).
- [feaLib] Demote &quot;Feature has not been defined&quot; error to a warning when building aalt
and referenced feature is empty (3110).
- [feaLib] Dedupe multiple substitutions with classes (3105).

4.39.4

----------------------------

- [varLib.interpolatable] Allow for sparse masters (3075)
- [merge] Handle differing default/nominalWidthX in CFF (3070)
- [ttLib] Add missing main.py file to ttLib package (3088)
- [ttx] Fix missing composite instructions in XML (3092)
- [ttx] Fix split tables option to work on filenames containing &#x27;%&#x27; (3096)
- [featureVars] Process lookups for features other than rvrn last (3099)
- [feaLib] support multiple substitution with classes (3103)

4.39.3

----------------------------

- [sbix] Fixed TypeError when compiling empty glyphs whose imageData is None, regression
was introduced in v4.39 (3059).
- [ttFont] Fixed AttributeError on python &lt;= 3.10 when opening a TTFont from a tempfile
SpooledTemporaryFile, seekable method only added on python 3.11 (3052).

4.39.2

----------------------------

- [varLib] Fixed regression introduced in 4.39.1 whereby an incomplete &#x27;STAT&#x27; table
would be built even though a DesignSpace v5 did contain &#x27;STAT&#x27; definitions (3045, 3046).

4.39.1

----------------------------

- [avar2] Added experimental support for reading/writing avar version 2 as specified in
this draft proposal: https://github.com/harfbuzz/boring-expansion-spec/blob/main/avar2.md
- [glifLib] Wrap underlying XML library exceptions with GlifLibError when parsing GLIFs,
and also print the name and path of the glyph that fails to be parsed (3042).
- [feaLib] Consult avar for normalizing user-space values in ConditionSets and in
VariableScalars (3042, 3043).
- [ttProgram] Handle string input to Program.fromAssembly() (3038).
- [otlLib] Added a config option to emit GPOS 7 lookups, currently disabled by default
because of a macOS bug (3034).
- [COLRv1] Added method to automatically compute ClipBoxes (3027).
- [ttFont] Fixed getGlyphID to raise KeyError on missing glyphs instead of returning
None. The regression was introduced in v4.27.0 (3032).
- [sbix] Fixed UnboundLocalError: cannot access local variable &#x27;rawdata&#x27; (3031).
- [varLib] When building VF, do not overwrite a pre-existing ``STAT`` table that was built
with feaLib from FEA feature file. Also, added support for building multiple VFs
defined in Designspace v5 from ``fonttools varLib`` script (3024).
- [mtiLib] Only add ``Debg`` table with lookup names when ``FONTTOOLS_LOOKUP_DEBUGGING``
env variable is set (3023).

4.39.0

----------------------------

- [mtiLib] Optionally add `Debg` debug info for MTI feature builds (3018).
- [ttx] Support reading input file from standard input using special `-` character,
similar to existing `-o -` option to write output to standard output (3020).
- [cython] Prevent ``cython.compiled`` raise AttributeError if cython not installed
properly (3017).
- [OS/2] Guard against ZeroDivisionError when calculating xAvgCharWidth in the unlikely
scenario no glyph has non-zero advance (3015).
- [subset] Recompute xAvgCharWidth independently of --no-prune-unicode-ranges,
previously the two options were involuntarily bundled together (3012).
- [fontBuilder] Add ``debug`` parameter to addOpenTypeFeatures method to add source
debugging information to the font in the ``Debg`` private table (3008).
- [name] Make NameRecord `__lt__` comparison not fail on Unicode encoding errors (3006).
- [featureVars] Fixed bug in ``overlayBox`` (3003, 3005).
- [glyf] Added experimental support for cubic bezier curves in TrueType glyf table, as
outlined in glyf v1 proposal (2988):
https://github.com/harfbuzz/boring-expansion-spec/blob/main/glyf1-cubicOutlines.md
- Added new qu2cu module and related qu2cuPen, the reverse of cu2qu for converting
TrueType quadratic splines to cubic bezier curves (2993).
- [glyf] Added experimental support for reading and writing Variable Composites/Components
as defined in glyf v1 spec proposal (2958):
https://github.com/harfbuzz/boring-expansion-spec/blob/main/glyf1-varComposites.md.
- [pens]: Added `addVarComponent` method to pen protocols&#x27; base classes, which pens can implement
to handle varcomponents (by default they get decomposed) (2958).
- [misc.transform] Added DecomposedTransform class which implements an affine transformation
with separate translate, rotation, scale, skew, and transformation-center components (2598)
- [sbix] Ensure Glyph.referenceGlyphName is set; fixes error after dumping and
re-compiling sbix table with &#x27;dupe&#x27; glyphs (2984).
- [feaLib] Be cleverer when merging chained single substitutions into same lookup
when they are specified using the inline notation (2150, 2974).
- [instancer] Clamp user-inputted axis ranges to those of fvar (2959).
- [otBase/subset] Define ``__getstate__`` for BaseTable so that a copied/pickled &#x27;lazy&#x27;
object gets its own OTTableReader to read from; incidentally fixes a bug while
subsetting COLRv1 table containing ClipBoxes on python 3.11 (2965, 2968).
- [sbix] Handle glyphs with &quot;dupe&quot; graphic type on compile correctly (2963).
- [glyf] ``endPointsOfContours`` field should be unsigned! Kudos to behdad for
spotting one of the oldest bugs in FT. Probably nobody has ever dared to make
glyphs with more than 32767 points... (2957).
- [feaLib] Fixed handling of ``ignore`` statements with unmarked glyphs to match
makeotf behavior, which assumes the first glyph is marked (2950).
- Reformatted code with ``black`` and enforce new code style via CI check (2925).
- [feaLib] Sort name table entries following OT spec prescribed order in the builder (2927).
- [cu2quPen] Add Cu2QuMultiPen that converts multiple outlines at a time in
interpolation compatible way; its methods take a list of tuples arguments
that would normally be passed to individual segment pens, and at the end it
dispatches the converted outlines to each pen (2912).
- [reverseContourPen/ttGlyphPen] Add outputImpliedClosingLine option (2913, 2914,
2921, 2922, 2995).
- [gvar] Avoid expanding all glyphs unnecessarily upon compile (2918).
- [scaleUpem] Fixed bug whereby CFF2 vsindex was scaled; it should not (2893, 2894).
- [designspaceLib] Add DS.getAxisByTag and refactor getAxis (2891).
- [unicodedata] map Zmth&lt;-&gt;math in ot_tag_{to,from}_script (1737, 2889).
- [woff2] Support encoding/decoding OVERLAP_SIMPLE glyf flags (2576, 2884).
- [instancer] Update OS/2 class and post.italicAngle when default moved (L4)
- Dropped support for Python 3.7 which reached EOL, fontTools requires 3.8+.
- [instancer] Fixed instantiateFeatureVariations logic when a rule range becomes
default-applicable (2737, 2880).
- [ttLib] Add main to ttFont and ttCollection that just decompile and re-compile the
input font (2869).
- [featureVars] Insert &#x27;rvrn&#x27; lookup at the beginning of LookupList, to work around bug
in Apple implementation of &#x27;rvrn&#x27; feature which the spec says it should be processed
early whereas on macOS 10.15 it follows lookup order (2140, 2867).
- [instancer/mutator] Remove &#x27;DSIG&#x27; table if present.
- [svgPathPen] Don&#x27;t close path in endPath(), assume open unless closePath() (2089, 2865).

4.38.0

----------------------------

- [varLib.instancer] Added support for L4 instancing, i.e. moving the default value of
an axis while keeping it variable. Thanks Behdad! (2728, 2861).
It&#x27;s now also possible to restrict an axis min/max values beyond the current default
value, e.g. a font wght has min=100, def=400, max=900 and you want a partial VF that
only varies between 500 and 700, you can now do that.
You can either specify two min/max values (wght=500:700), and the new default will be
set to either the minimum or maximum, depending on which one is closer to the current
default (e.g. 500 in this case). Or you can specify three values (e.g. wght=500:600:700)
to specify the new default value explicitly.
- [otlLib/featureVars] Set a few Count values so one doesn&#x27;t need to compile the font
to update them (2860).
- [varLib.models] Make extrapolation work for 2-master models as well where one master
is at the default location (2843, 2846).
Add optional extrapolate=False to normalizeLocation() (2847, 2849).
- [varLib.cff] Fixed sub-optimal packing of CFF2 deltas by no longer rounding them to
integer (2838).
- [scaleUpem] Calculate numShorts in VarData after scale; handle CFF hintmasks (2840).

4.37.4

----------------------------

- [subset] Keep nameIDs used by CPAL palette entry labels (2837).
- [varLib] Avoid negative hmtx values when creating font from variable CFF2 font (2827).
- [instancer] Don&#x27;t prune stat.ElidedFallbackNameID (2828).
- [unicodedata] Update Scripts/Blocks to Unicode 15.0 (2833).

4.37.3

----------------------------

- Fix arguments in calls to (glyf) glyph.draw() and drawPoints(), whereby offset wasn&#x27;t
correctly passed down; this fix also exposed a second bug, where lsb and tsb were not
set (2824, 2825, adobe-type-tools/afdko1560).

4.37.2

----------------------------

- [subset] Keep CPAL table and don&#x27;t attempt to prune unused color indices if OT-SVG
table is present even if COLR table was subsetted away; OT-SVG may be referencing the
CPAL table; for now we assume that&#x27;s the case (2814, 2815).
- [varLib.instancer] Downgrade GPOS/GSUB version if there are no more FeatureVariations
after instancing (2812).
- [subset] Added ``--no-lazy`` to optionally load fonts eagerly (mostly to ease
debugging of table lazy loading, no practical effects) (2807).
- [varLib] Avoid building empty COLR.DeltaSetIndexMap with only identity mappings (2803).
- [feaLib] Allow multiple value record types (by promoting to the most general format)
within the same PairPos subtable; e.g. this allows variable and non variable kerning
rules to share the same subtable. This also fixes a bug whereby some kerning pairs
would become unreachable while shapiong because of premature subtable splitting (2772, 2776).
- [feaLib] Speed up ``VarScalar`` by caching models for recurring master locations (2798).
- [feaLib] Optionally cythonize ``feaLib.lexer``, speeds up parsing FEA a bit (2799).
- [designspaceLib] Avoid crash when handling unbounded rule conditions (2797).
- [post] Don&#x27;t crash if ``post`` legacy format 1 is malformed/improperly used (2786)
- [gvar] Don&#x27;t be &quot;lazy&quot; (load all glyph variations up front) when TTFont.lazy=False (2771).
- [TTFont] Added ``normalizeLocation`` method to normalize a location dict from the
font&#x27;s defined axes space (also known as &quot;user space&quot;) into the normalized (-1..+1)
space. It applies ``avar`` mapping if the font contains an ``avar`` table (2789).
- [TTVarGlyphSet] Support drawing glyph instances from CFF2 variable glyph set (2784).
- [fontBuilder] Do not error when building cmap if there are zero code points (2785).
- [varLib.plot] Added ability to plot a variation model and set of accompaning master
values corresponding to the model&#x27;s master locations into a pyplot figure (2767).
- [Snippets] Added ``statShape.py`` script to draw statistical shape of a glyph as an
ellips (requires pycairo) (baecd88).
- [TTVarGlyphSet] implement drawPoints natively, avoiding going through
SegmentToPointPen (2778).
- [TTVarGlyphSet] Fixed bug whereby drawing a composite glyph multiple times, its
components would shif; needed an extra copy (2774).

4.37.1

----------------------------

- [subset] Fixed regression introduced with v4.37.0 while subsetting the VarStore of
``HVAR`` and ``VVAR`` tables, whereby an ``AttributeError: subset_varidxes`` was
thrown because an apparently unused import statement (with the side-effect of
dynamically binding that ``subset_varidxes`` method to the VarStore class) had been
accidentally deleted in an unrelated PR (2679, 2773).
- [pens] Added ``cairoPen`` (2678).
- [gvar] Read ``gvar`` more lazily by not parsing all of the ``glyf`` table (2771).
- [ttGlyphSet] Make ``drawPoints(pointPen)`` method work for CFF fonts as well via
adapter pen (2770).

4.37.0

----------------------------

- [varLib.models] Reverted PR 2717 which added support for &quot;narrow tents&quot; in v4.36.0,
as it introduced a regression (2764, 2765). It will be restored in upcoming release
once we found a solution to the bug.
- [cff.specializer] Fixed issue in charstring generalizer with the ``blend`` operator
(2750, 1975).
- [varLib.models] Added support for extrapolation (2757).
- [ttGlyphSet] Ensure the newly added ``_TTVarGlyphSet`` inherits from ``_TTGlyphSet``
to keep backward compatibility with existing API (2762).
- [kern] Allow compiling legacy kern tables with more than 64k entries (d21cfdede).
- [visitor] Added new visitor API to traverse tree of objects and dispatch based
on the attribute type: cf. ``fontTools.misc.visitor`` and ``fontTools.ttLib.ttVisitor``. Added ``fontTools.ttLib.scaleUpem`` module that uses the latter to
change a font&#x27;s units-per-em and scale all the related fields accordingly (2718,
2755).

4.36.0

----------------------------

- [varLib.models] Use a simpler model that generates narrower &quot;tents&quot; (regions, master
supports) whenever possible: specifically when any two axes that actively &quot;cooperate&quot;
(have masters at non-zero positions for both axes) have a complete set of intermediates.
The simpler algorithm produces fewer overlapping regions and behaves better with
respect to rounding at the peak positions than the generic solver, always matching
intermediate masters exactly, instead of maximally 0.5 units off. This may be useful
when 100% metrics compatibility is desired (2218, 2717).
- [feaLib] Remove warning when about ``GDEF`` not being built when explicitly not
requested; don&#x27;t build one unconditonally even when not requested (2744, also works
around 2747).
- [ttFont] ``TTFont.getGlyphSet`` method now supports selecting a location that
represents an instance of a variable font (supports both user-scale and normalized
axes coordinates via the ``normalized=False`` parameter). Currently this only works
for TrueType-flavored variable fonts (2738).

4.35.0

----------------------------

- [otData/otConverters] Added support for &#x27;biased&#x27; PaintSweepGradient start/end angles
to match latest COLRv1 spec (2743).
- [varLib.instancer] Fixed bug in ``_instantiateFeatureVariations`` when at the same
time pinning one axis and restricting the range of a subsequent axis; the wrong axis
tag was being used in the latter step (as the records&#x27; axisIdx was updated in the
preceding step but looked up using the old axes order in the following step) (2733,
2734).
- [mtiLib] Pad script tags with space when less than 4 char long (1727).
- [merge] Use ``&#x27;.&#x27;`` instead of ``&#x27;&#x27;`` in duplicate glyph names (2742).
- [gvar] Added support for lazily loading glyph variations (2741).
- [varLib] In ``build_many``, we forgot to pass on ``colr_layer_reuse`` parameter to
the ``build`` method (2730).
- [svgPathPen] Add a main that prints SVG for input text (6df779fd).
- [cffLib.width] Fixed off-by-one in optimized values; previous code didn&#x27;t match the
code block above it (2963fa50).
- [varLib.interpolatable] Support reading .designspace and .glyphs files (via optional
``glyphsLib``).
- Compile some modules with Cython when available and building/installing fonttools
from source: ``varLib.iup`` (35% faster), ``pens.momentsPen`` (makes
``varLib.interpolatable`` 3x faster).
- [feaLib] Allow features to be built for VF without also building a GDEF table (e.g.
only build GSUB); warn when GDEF would be needed but isn&#x27;t requested (2705, 2694).
- [otBase] Fixed ``AttributeError`` when uharfbuzz &lt; 0.23.0 and &#x27;repack&#x27; method is
missing (32aa8eaf). Use new ``uharfbuzz.repack_with_tag`` when available (since
uharfbuzz&gt;=0.30.0), enables table-specific optimizations to be performed during
repacking (2724).
- [statisticsPen] By default report all glyphs (4139d891). Avoid division-by-zero
(52b28f90).
- [feaLib] Added missing required argument to FeatureLibError exception (2693)
- [varLib.merge] Fixed error during error reporting (2689). Fixed undefined
``NotANone`` variable (2714).

4.34.4

----------------------------

- Fixed typo in varLib/merger.py that causes NameError merging COLR glyphs
containing more than 255 layers (2685).

4.34.3

----------------------------

- [designspaceLib] Don&#x27;t make up bad PS names when no STAT data (2684)

4.34.2

----------------------------

- [varStore/subset] fixed KeyError exception to do with NO_VARIATION_INDEX while
subsetting varidxes in GPOS/GDEF (a08140d).

4.34.1

----------------------------

- [instancer] When optimizing HVAR/VVAR VarStore, use_NO_VARIATION_INDEX=False to avoid
including NO_VARIATION_INDEX in AdvWidthMap, RsbMap, LsbMap mappings, which would
push the VarIdx width to maximum (4bytes), which is not desirable. This also fixes
a hard crash when attempting to subset a varfont after it had been partially instanced
with use_NO_VARIATION_INDEX=True.

4.34.0

----------------------------

- [instancer] Set RIBBI bits in head and OS/2 table when cutting instances and the
subfamily nameID=2 contains strings like &#x27;Italic&#x27; or &#x27;Bold&#x27; (2673).
- [otTraverse] Addded module containing methods for traversing trees of otData tables
(2660).
- [otTables] Made DeltaSetIndexMap TTX dump less verbose by omitting no-op entries
(2660).
- [colorLib.builder] Added option to disable PaintColrLayers&#x27;s reuse of layers from
LayerList (2660).
- [varLib] Added support for merging multiple master COLRv1 tables into a variable
COLR table (2660, 2328). Base color glyphs of same name in different masters must have
identical paint graph structure (incl. number of layers, palette indices, number
of color line stops, corresponding paint formats at each level of the graph),
but can differ in the variable fields (e.g. PaintSolid.Alpha). PaintVar* tables
are produced when this happens and a VarStore/DeltaSetIndexMap is added to the
variable COLR table. It is possible for non-default masters to be &#x27;sparse&#x27;, i.e.
omit some of the color glyphs present in the default master.
- [feaLib] Let the Parser set nameIDs 1 through 6 that were previously reserved (2675).
- [varLib.varStore] Support NO_VARIATION_INDEX in optimizer and instancer.
- [feaLib] Show all missing glyphs at once at end of parsing (2665).
- [varLib.iup] Rewrite force-set conditions and limit DP loopback length (2651).
For Noto Sans, IUP time drops from 23s down to 9s, with only a slight size increase
in the final font. This basically turns the algorithm from O(n^3) into O(n).
- [featureVars] Report about missing glyphs in substitution rules (2654).
- [mutator/instancer] Added CLI flag to --no-recalc-timestamp (2649).
- [SVG] Allow individual SVG documents in SVG OT table to be compressed on uncompressed,
and remember that when roundtripping to/from ttx. The SVG.docList is now a list
of SVGDocument namedtuple-like dataclass containing an extra ``compressed`` field,
and no longer a bare 3-tuple (2645).
- [designspaceLib] Check for descriptor types with hasattr() to allow custom classes
that don&#x27;t inherit the default descriptors (2634).
- [subset] Enable sharing across subtables of extension lookups for harfbuzz packing
(2626). Updated how table packing falls back to fontTools from harfbuzz (2668).
- [subset] Updated default feature tags following current Harfbuzz (2637).
- [svgLib] Fixed regex for real number to support e.g. 1e-4 in addition to 1.0e-4.
Support parsing negative rx, ry on arc commands (2596, 2611).
- [subset] Fixed subsetting SinglePosFormat2 when ValueFormat=0 (2603).

4.33.3

----------------------------

- [designspaceLib] Fixed typo in ``deepcopyExceptFonts`` method, preventing font
references to be transferred (2600). Fixed another typo in the name of ``Range``
dataclass&#x27;s ``__post_init__`` magic method (2597).

4.33.2

----------------------------

- [otBase] Make logging less verbose when harfbuzz fails to serialize. Do not exit
at the first failure but continue attempting to fix offset overflow error using
the pure-python serializer even when the ``USE_HARFBUZZ_REPACKER`` option was
explicitly set to ``True``. This is normal with fonts with relatively large
tables, at least until hb.repack implements proper table splitting.

4.33.1

----------------------------

- [otlLib] Put back the ``FONTTOOLS_GPOS_COMPACT_MODE`` environment variable to fix
regression in ufo2ft (and thus fontmake) introduced with v4.33.0 (2592, 2593).
This is deprecated and will be removed one ufo2ft gets updated to use the new
config setup.

4.33.0

----------------------------

- [OS/2 / merge] Automatically recalculate ``OS/2.xAvgCharWidth`` after merging
fonts with ``fontTools.merge`` (2591, 2538).
- [misc/config] Added ``fontTools.misc.configTools`` module, a generic configuration
system (2416, 2439).
Added ``fontTools.config`` module, a fontTools-specific configuration
system using ``configTools`` above.
Attached a ``Config`` object to ``TTFont``.
- [otlLib] Replaced environment variable for GPOS compression level with an
equivalent option using the new config system.
- [designspaceLib] Incremented format version to 5.0 (2436).
Added discrete axes, variable fonts, STAT information, either design- or
user-space location on instances.
Added ``fontTools.designspaceLib.split`` module to split a designspace
into sub-spaces that interpolate and that represent the variable fonts
listed in the document.
Made instance names optional and allow computing them from STAT data instead.
Added ``fontTools.designspaceLib.statNames`` module.
Allow instances to have the same location as a previously defined STAT label.
Deprecated some attributes:
``SourceDescriptor``: ``copyLib``, ``copyInfo``, ``copyGroups``, ``copyFeatures``.
``InstanceDescriptor``: ``kerning``, ``info``; ``glyphs``: use rules or sparse
sources.
For both, ``location``: use the more explicit designLocation.
Note: all are soft deprecations and existing code should keep working.
Updated documentation for Python methods and the XML format.
- [varLib] Added ``build_many`` to build several variable fonts from a single
designspace document (2436).
Added ``fontTools.varLib.stat`` module to build STAT tables from a designspace
document.
- [otBase] Try to use the Harfbuzz Repacker for packing GSUB/GPOS tables when
``uharfbuzz`` python bindings are available (2552). Disable it by setting the
&quot;fontTools.ttLib.tables.otBase:USE_HARFBUZZ_REPACKER&quot; config option to ``False``.
If the option is set explicitly to ``True`` but ``uharfbuzz`` can&#x27;t be imported
or fails to serialize for any reasons, an error will be raised (ImportError or
uharfbuzz errors).
- [CFF/T2] Ensure that ``pen.closePath()`` gets called for CFF2 charstrings (2577).
Handle implicit CFF2 closePath within ``T2OutlineExtractor`` (2580).

4.32.0

----------------------------

- [otlLib] Disable GPOS7 optimization to work around bug in Apple CoreText.
Always force Chaining GPOS8 for now (2540).
- [glifLib] Added ``outputImpliedClosingLine=False`` parameter to ``Glyph.draw()``,
to control behaviour of ``PointToSegmentPen`` (6b4e2e7).
- [varLib.interpolatable] Check for wrong contour starting point (2571).
- [cffLib] Remove leftover ``GlobalState`` class and fix calls to ``TopDictIndex()``
(2569, 2570).
- [instancer] Clear ``AxisValueArray`` if it is empty after instantiating (2563).

4.31.2

----------------------------

- [varLib] fix instantiation of GPOS SinglePos values (2555).

4.31.1

----------------------------

- [subset] fix subsetting OT-SVG when glyph id attribute is on the root ``&lt;svg&gt;``
element (2553).

4.31.0

----------------------------

- [ttCollection] Fixed &#x27;ResourceWarning: unclosed file&#x27; warning (2549).
- [varLib.merger] Handle merging SinglePos with valueformat=0 (2550).
- [ttFont] Update glyf&#x27;s glyphOrder when calling TTFont.setGlyphOrder() (2544).
- [ttFont] Added ``ensureDecompiled`` method to load all tables irrespective
of the ``lazy`` attribute (2551).
- [otBase] Added ``iterSubTable`` method to iterate over BaseTable&#x27;s children of
type BaseTable; useful for traversing a tree of otTables (2551).

4.30.0

----------------------------

- [varLib] Added debug logger showing the glyph name for which ``gvar`` is built (2542).
- [varLib.errors] Fixed undefined names in ``FoundANone`` and ``UnsupportedFormat``
exceptions (ac4d5611).
- [otlLib.builder] Added ``windowsNames`` and ``macNames`` (bool) parameters to the
``buildStatTabe`` function, so that one can select whether to only add one or both
of the two sets (2528).
- [t1Lib] Added the ability to recreate PostScript stream (2504).
- [name] Added ``getFirstDebugName``, ``getBest{Family,SubFamily,Full}Name`` methods (2526).

4.29.1

----------------------------

- [colorLib] Fixed rounding issue with radial gradient&#x27;s start/end circles inside
one another (2521).
- [freetypePen] Handle rotate/skew transform when auto-computing width/height of the
buffer; raise PenError wen missing moveTo (2517)

4.29.0

----------------------------

- [ufoLib] Fixed illegal characters and expanded reserved filenames (2506).
- [COLRv1] Don&#x27;t emit useless PaintColrLayers of lenght=1 in LayerListBuilder (2513).
- [ttx] Removed legacy ``waitForKeyPress`` method on Windows (2509).
- [pens] Added FreeTypePen that uses ``freetype-py`` and the pen protocol for
rasterizating outline paths (2494).
- [unicodedata] Updated the script direction list to Unicode 14.0 (2484).
Bumped unicodedata2 dependency to 14.0 (2499).
- [psLib] Fixed type of ``fontName`` in ``suckfont`` (2496).

4.28.5

----------------------------

- [svgPathPen] Continuation of 2471: make sure all occurrences of ``str()`` are now
replaced with user-defined ``ntos`` callable.
- [merge] Refactored code into submodules, plus several bugfixes and improvements:
fixed duplicate-glyph-resolution GSUB-lookup generation code; use tolerance in glyph
comparison for empty glyph&#x27;s width; ignore space of default ignorable glyphs;
downgrade duplicates-resolution missing-GSUB from assert to warn; added --drop-tables
option (2473, 2475, 2476).

4.28.4

----------------------------

- [merge] Merge GDEF marksets in Lookups properly (2474).
- [feaLib] Have ``fontTools feaLib`` script exit with error code when build fails (2459)
- [svgPathPen] Added ``ntos`` option to customize number formatting (e.g. rounding) (2471).
- [subset] Speed up subsetting of large CFF fonts (2467).
- [otTables] Speculatively promote lookups to extension to speed up compilation. If t

pyup-bot · 2026-07-20T15:41:31Z

Closing this in favor of #1087

Update fonttools from 4.27.1 to 4.63.0

9b83609

pyup-bot closed this Jul 20, 2026

fake-name deleted the pyup-update-fonttools-4.27.1-to-4.63.0 branch July 20, 2026 15:41

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pyup-bot commented Jul 13, 2026

4.63.0

4.62.1

4.62.0

4.61.1

4.61.0

4.60.2

4.60.1

4.60.0

4.59.2

4.59.1

4.59.0

4.58.5

4.58.4

4.58.3

4.58.2

4.58.1

4.58.0

4.57.0

4.56.0

4.55.8

4.55.7

4.55.6

4.55.5

4.55.4

4.55.3

4.55.2

4.55.1

4.55.0

4.54.1

4.54.0

4.53.1

4.53.0

4.52.4

4.52.3

4.52.2

4.52.1

4.52.0

4.51.0

4.50.0

4.49.0

4.48.1

4.48.0

4.47.2

4.47.1

4.47.0

4.46.0

4.45.1

4.45.0

4.44.3

4.44.2

4.44.1

4.44.0

4.43.1

4.43.0

4.42.1

4.42.0

4.41.1

4.41.0

4.40.0

4.39.4

4.39.3

4.39.2

4.39.1

4.39.0

4.38.0

4.37.4

4.37.3

4.37.2

4.37.1

4.37.0

4.36.0

4.35.0

4.34.4

4.34.3

4.34.2

4.34.1

4.34.0

4.33.3