{"author":"Just van Rossum","author_email":"just@letterror.com","bugtrack_url":null,"classifiers":["Development Status :: 5 - Production/Stable","Environment :: Console","Environment :: Other Environment","Intended Audience :: Developers","Intended Audience :: End Users/Desktop","Natural Language :: English","Operating System :: OS Independent","Programming Language :: Python","Programming Language :: Python :: 3","Programming Language :: Python :: 3.10","Programming Language :: Python :: 3.11","Programming Language :: Python :: 3.12","Programming Language :: Python :: 3.13","Programming Language :: Python :: 3.9","Topic :: Multimedia :: Graphics","Topic :: Multimedia :: Graphics :: Graphics Conversion","Topic :: Text Processing :: Fonts"],"description":"|CI Build Status| |Coverage Status| |PyPI| |Gitter Chat|\n\nWhat is this?\n~~~~~~~~~~~~~\n\n| fontTools is a library for manipulating fonts, written in Python. The\n project includes the TTX tool, that can convert TrueType and OpenType\n fonts to and from an XML text format, which is also called TTX. It\n supports TrueType, OpenType, AFM and to an extent Type 1 and some\n Mac-specific formats. The project has an `MIT open-source\n license `__.\n| Among other things this means you can use it free of charge.\n\n`User documentation `_ and\n`developer documentation `_\nare available at `Read the Docs `_.\n\nInstallation\n~~~~~~~~~~~~\n\nFontTools requires `Python `__ 3.9\nor later. We try to follow the same schedule of minimum Python version support as\nNumPy (see `NEP 29 `__).\n\nThe package is listed in the Python Package Index (PyPI), so you can\ninstall it with `pip `__:\n\n.. code:: sh\n\n pip install fonttools\n\nIf you would like to contribute to its development, you can clone the\nrepository from GitHub, install the package in 'editable' mode and\nmodify the source code in place. We recommend creating a virtual\nenvironment, using `virtualenv `__ or\nPython 3 `venv `__ module.\n\n.. code:: sh\n\n # download the source code to 'fonttools' folder\n git clone https://github.com/fonttools/fonttools.git\n cd fonttools\n\n # create new virtual environment called e.g. 'fonttools-venv', or anything you like\n python -m virtualenv fonttools-venv\n\n # source the `activate` shell script to enter the environment (Unix-like); to exit, just type `deactivate`\n . fonttools-venv/bin/activate\n\n # to activate the virtual environment in Windows `cmd.exe`, do\n fonttools-venv\\Scripts\\activate.bat\n\n # install in 'editable' mode\n pip install -e .\n\nOptional Requirements\n---------------------\n\nThe ``fontTools`` package currently has no (required) external dependencies\nbesides the modules included in the Python Standard Library.\nHowever, a few extra dependencies are required by some of its modules, which\nare needed to unlock optional features.\nThe ``fonttools`` PyPI distribution also supports so-called \"extras\", i.e. a\nset of keywords that describe a group of additional dependencies, which can be\nused when installing via pip, or when specifying a requirement.\nFor example:\n\n.. code:: sh\n\n pip install fonttools[ufo,lxml,woff,unicode]\n\nThis command will install fonttools, as well as the optional dependencies that\nare required to unlock the extra features named \"ufo\", etc.\n\n- ``Lib/fontTools/misc/etree.py``\n\n The module exports a ElementTree-like API for reading/writing XML files, and\n allows to use as the backend either the built-in ``xml.etree`` module or\n `lxml `__. The latter is preferred whenever present,\n as it is generally faster and more secure.\n\n *Extra:* ``lxml``\n\n- ``Lib/fontTools/ufoLib``\n\n Package for reading and writing UFO source files; it requires:\n\n * `fs `__: (aka ``pyfilesystem2``) filesystem\n abstraction layer.\n\n *Extra:* ``ufo``\n\n- ``Lib/fontTools/ttLib/woff2.py``\n\n Module to compress/decompress WOFF 2.0 web fonts; it requires:\n\n * `brotli `__: Python bindings of\n the Brotli compression library.\n\n *Extra:* ``woff``\n\n- ``Lib/fontTools/ttLib/sfnt.py``\n\n To better compress WOFF 1.0 web fonts, the following module can be used\n instead of the built-in ``zlib`` library:\n\n * `zopfli `__: Python bindings of\n the Zopfli compression library.\n\n *Extra:* ``woff``\n\n- ``Lib/fontTools/unicode.py``\n\n To display the Unicode character names when dumping the ``cmap`` table\n with ``ttx`` we use the ``unicodedata`` module in the Standard Library.\n The version included in there varies between different Python versions.\n To use the latest available data, you can install:\n\n * `unicodedata2 `__:\n ``unicodedata`` backport for Python 3.x updated to the latest Unicode\n version 15.0.\n\n *Extra:* ``unicode``\n\n- ``Lib/fontTools/varLib/interpolatable.py``\n\n Module for finding wrong contour/component order between different masters.\n It requires one of the following packages in order to solve the so-called\n \"minimum weight perfect matching problem in bipartite graphs\", or\n the Assignment problem:\n\n * `scipy `__: the Scientific Library\n for Python, which internally uses `NumPy `__\n arrays and hence is very fast;\n * `munkres `__: a pure-Python\n module that implements the Hungarian or Kuhn-Munkres algorithm.\n\n To plot the results to a PDF or HTML format, you also need to install:\n\n * `pycairo `__: Python bindings for the\n Cairo graphics library. Note that wheels are currently only available for\n Windows, for other platforms see pycairo's `installation instructions\n `__.\n\n *Extra:* ``interpolatable``\n\n- ``Lib/fontTools/varLib/plot.py``\n\n Module for visualizing DesignSpaceDocument and resulting VariationModel.\n\n * `matplotlib `__: 2D plotting library.\n\n *Extra:* ``plot``\n\n- ``Lib/fontTools/misc/symfont.py``\n\n Advanced module for symbolic font statistics analysis; it requires:\n\n * `sympy `__: the Python library for\n symbolic mathematics.\n\n *Extra:* ``symfont``\n\n- ``Lib/fontTools/t1Lib.py``\n\n To get the file creator and type of Macintosh PostScript Type 1 fonts\n on Python 3 you need to install the following module, as the old ``MacOS``\n module is no longer included in Mac Python:\n\n * `xattr `__: Python wrapper for\n extended filesystem attributes (macOS platform only).\n\n *Extra:* ``type1``\n\n- ``Lib/fontTools/ttLib/removeOverlaps.py``\n\n Simplify TrueType glyphs by merging overlapping contours and components.\n\n * `skia-pathops `__: Python\n bindings for the Skia library's PathOps module, performing boolean\n operations on paths (union, intersection, etc.).\n\n *Extra:* ``pathops``\n\n- ``Lib/fontTools/pens/cocoaPen.py`` and ``Lib/fontTools/pens/quartzPen.py``\n\n Pens for drawing glyphs with Cocoa ``NSBezierPath`` or ``CGPath`` require:\n\n * `PyObjC `__: the bridge between\n Python and the Objective-C runtime (macOS platform only).\n\n- ``Lib/fontTools/pens/qtPen.py``\n\n Pen for drawing glyphs with Qt's ``QPainterPath``, requires:\n\n * `PyQt5 `__: Python bindings for\n the Qt cross platform UI and application toolkit.\n\n- ``Lib/fontTools/pens/reportLabPen.py``\n\n Pen to drawing glyphs as PNG images, requires:\n\n * `reportlab `__: Python toolkit\n for generating PDFs and graphics.\n\n- ``Lib/fontTools/pens/freetypePen.py``\n\n Pen to drawing glyphs with FreeType as raster images, requires:\n\n * `freetype-py `__: Python binding\n for the FreeType library.\n \n- ``Lib/fontTools/ttLib/tables/otBase.py``\n\n Use the Harfbuzz library to serialize GPOS/GSUB using ``hb_repack`` method, requires:\n \n * `uharfbuzz `__: Streamlined Cython\n bindings for the harfbuzz shaping engine\n \n *Extra:* ``repacker``\n\nHow to make a new release\n~~~~~~~~~~~~~~~~~~~~~~~~~\n\n1) Update ``NEWS.rst`` with all the changes since the last release. Write a\n changelog entry for each PR, with one or two short sentences summarizing it,\n as well as links to the PR and relevant issues addressed by the PR. Do not\n put a new title, the next command will do it for you.\n2) Use semantic versioning to decide whether the new release will be a 'major',\n 'minor' or 'patch' release. It's usually one of the latter two, depending on\n whether new backward compatible APIs were added, or simply some bugs were fixed.\n3) From inside a venv, first do ``pip install -r dev-requirements.txt``, then run\n the ``python setup.py release`` command from the tip of the ``main`` branch.\n By default this bumps the third or 'patch' digit only, unless you pass ``--major``\n or ``--minor`` to bump respectively the first or second digit.\n This bumps the package version string, extracts the changes since the latest\n version from ``NEWS.rst``, and uses that text to create an annotated git tag\n (or a signed git tag if you pass the ``--sign`` option and your git and Github\n account are configured for `signing commits `__\n using a GPG key).\n It also commits an additional version bump which opens the main branch for\n the subsequent developmental cycle\n4) Push both the tag and commit to the upstream repository, by running the command\n ``git push --follow-tags``. Note: it may push other local tags as well, be\n careful.\n5) Let the CI build the wheel and source distribution packages and verify both\n get uploaded to the Python Package Index (PyPI).\n6) [Optional] Go to fonttools `Github Releases `__\n page and create a new release, copy-pasting the content of the git tag\n message. This way, the release notes are nicely formatted as markdown, and\n users watching the repo will get an email notification. One day we shall\n automate that too.\n\n\nAcknowledgments\n~~~~~~~~~~~~~~~~\n\nIn alphabetical order:\n\naschmitz, Olivier Berten, Samyak Bhuta, Erik van Blokland, Petr van Blokland,\nJelle Bosma, Sascha Brawer, Tom Byrer, Antonio Cavedoni, Frédéric Coiffier,\nVincent Connare, David Corbett, Simon Cozens, Dave Crossland, Simon Daniels,\nPeter Dekkers, Behdad Esfahbod, Behnam Esfahbod, Hannes Famira, Sam Fishman,\nMatt Fontaine, Takaaki Fuji, Rob Hagemans, Yannis Haralambous, Greg Hitchcock,\nJeremie Hornus, Khaled Hosny, John Hudson, Denis Moyogo Jacquerye, Jack Jansen,\nTom Kacvinsky, Jens Kutilek, Antoine Leca, Werner Lemberg, Tal Leming, Liang Hai, Peter\nLofting, Cosimo Lupo, Olli Meier, Masaya Nakamura, Dave Opstad, Laurence Penney,\nRoozbeh Pournader, Garret Rieger, Read Roberts, Colin Rofls, Guido van Rossum,\nJust van Rossum, Andreas Seidel, Georg Seifert, Chris Simpkins, Miguel Sousa,\nAdam Twardoch, Adrien Tétar, Vitaly Volkov, Paul Wise.\n\nCopyrights\n~~~~~~~~~~\n\n| Copyright (c) 1999-2004 Just van Rossum, LettError\n (just@letterror.com)\n| See `LICENSE `__ for the full license.\n\nCopyright (c) 2000 BeOpen.com. All Rights Reserved.\n\nCopyright (c) 1995-2001 Corporation for National Research Initiatives.\nAll Rights Reserved.\n\nCopyright (c) 1991-1995 Stichting Mathematisch Centrum, Amsterdam. All\nRights Reserved.\n\nHave fun!\n\n.. |CI Build Status| image:: https://github.com/fonttools/fonttools/workflows/Test/badge.svg\n :target: https://github.com/fonttools/fonttools/actions?query=workflow%3ATest\n.. |Coverage Status| image:: https://codecov.io/gh/fonttools/fonttools/branch/main/graph/badge.svg\n :target: https://codecov.io/gh/fonttools/fonttools\n.. |PyPI| image:: https://img.shields.io/pypi/v/fonttools.svg\n :target: https://pypi.org/project/FontTools\n.. |Gitter Chat| image:: https://badges.gitter.im/fonttools-dev/Lobby.svg\n :alt: Join the chat at https://gitter.im/fonttools-dev/Lobby\n :target: https://gitter.im/fonttools-dev/Lobby?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge\n\nChangelog\n~~~~~~~~~\n\n4.58.0 (released 2025-05-10)\n----------------------------\n\n- Drop Python 3.8, require 3.9+ (#3819)\n- [HVAR, VVAR] Prune unused regions when using a direct mapping (#3797)\n- [Docs] Improvements to ufoLib documentation (#3721)\n- [Docs] Improvements to varLib documentation (#3727)\n- [Docs] Improvements to Pens and pen-module documentation (#3724)\n- [Docs] Miscellany updates to docs (misc modules and smaller modules) (#3730)\n- [subset] Close codepoints over BiDi mirror variants. (#3801)\n- [feaLib] Fix serializing ChainContextPosStatement and\n ChainContextSubstStatement in some rare cases (#3788)\n- [designspaceLib] Clarify user expectations for getStatNames (#2892)\n- [GVAR] Add support for new `GVAR` table (#3728)\n- [TSI0, TSI5] Derive number of entries to decompile from data length (#2477)\n- [ttLib] Fix `AttributeError` when reporting table overflow (#3808)\n- [ttLib] Apply rounding more often in getCoordinates (#3798)\n- [ttLib] Ignore component bounds if empty (#3799)\n- [ttLib] Change the separator for duplicate glyph names from \"#\" to \".\" (#3809)\n- [feaLib] Support subtable breaks in CursivePos, MarkBasePos, MarkToLigPos and\n MarkToMarkPos lookups (#3800, #3807)\n- [feaLib] If the same lookup has single substitutions and ligature\n substitutions, upgrade single substitutions to ligature substitutions with\n one input glyph (#3805)\n- [feaLib] Correctly handle in single pos lookups (#3803)\n- [feaLib] Remove duplicates from class pair pos classes instead of raising an\n error (#3804)\n- [feaLib] Support creating extension lookups using useExtenion lookup flag\n instead of silently ignoring it (#3811)\n- [STAT] Add typing for the simpler STAT arguments (#3812)\n- [otlLib.builder] Add future import for annotations (#3814)\n- [cffLib] Fix reading supplement encoding (#3813)\n- [voltLib] Add some missing functionality and fixes to voltLib and VoltToFea,\n making the conversion to feature files more robust. Add also `fonttools\n voltLib` command line tool to compile VOLT sources directly (doing an\n intermediate fea conversion internally) (#3818)\n- [pens] Add some PointPen annotations (#3820)\n\n4.57.0 (released 2025-04-03)\n----------------------------\n\n- [ttLib.__main__] Add `--no-recalc-timestamp` flag (#3771)\n- [ttLib.__main__] Add `-b` (recalcBBoxes=False) flag (#3772)\n- [cmap] Speed up glyphOrder loading from cmap (#3774)\n- [ttLib.__main__] Improvements around the `-t` flag (#3776)\n- [Debg] Fix parsing from XML; add roundtrip tests (#3781)\n- [fealib] Support \\*Base.MinMax tables (#3783, #3786)\n- [config] Add OPTIMIZE_FONT_SPEED (#3784)\n- [varLib.hvar] New module to add HVAR table to the font (#3780)\n- [otlLib.optimize] Fix crash when the provided TTF does not contain a `GPOS` (#3794)\n\n4.56.0 (released 2025-02-07)\n----------------------------\n\n- [varStore] Sort the input todo list with the same sorting key used for the opimizer's output (#3767).\n- [otData] Fix DeviceTable's ``DeltaValue`` repeat value which caused a crash after importing from XML and then compiling a GPOS containing Device tables (#3758).\n- [feaLib] Make ``FeatureLibError`` pickleable, so client can e.g. use feaLib to can compile features in parallel with multiprocessing (#3762).\n- [varLib/gvar] Removed workaround for old, long-fixed macOS bug about composite glyphs with all zero deltas (#1381, #1788).\n- [Docs] Updated ttLib documentation, beefed up TTFont and TTGlyphSet explanations (#3720).\n\n4.55.8 (released 2025-01-29)\n----------------------------\n\n- [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).\n\n4.55.7 (released 2025-01-28)\n----------------------------\n\n- 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).\n\n4.55.6 (released 2025-01-24)\n----------------------------\n\n- [glyf] Fixed regression introduced in 4.55.5 when computing bounds of nested composite glyphs with transformed components (#3752).\n\n4.55.5 (released 2025-01-23)\n----------------------------\n\n- [glyf] Fixed recalcBounds of transformed components with unrounded coordinates (#3750).\n- [feaLib] Allow duplicate script/language statements (#3749).\n\n4.55.4 (released 2025-01-21)\n----------------------------\n\n- [bezierTools] Fixed ``splitCubicAtT`` sometimes not returning identical start/end points as result of numerical precision (#3742, #3743).\n- [feaLib/ast] Fixed docstring of ``AlternateSubstStatement`` (#3735).\n- [transform] Typing fixes (#3734).\n\n4.55.3 (released 2024-12-10)\n----------------------------\n\n- [Docs] fill out ttLib table section [#3716]\n- [feaLib] More efficient inline format 4 lookups [#3726]\n\n4.55.2 (released 2024-12-05)\n----------------------------\n\n- [Docs] update Sphinx config (#3712)\n- [designspaceLib] Allow axisOrdering to be set to zero (#3715)\n- [feaLib] Don’t modify variable anchors in place (#3717)\n\n4.55.1 (released 2024-12-02)\n----------------------------\n\n- [ttGlyphSet] Support VARC CFF2 fonts (#3683)\n- [DecomposedTransform] Document and implement always skewY == 0 (#3697)\n- [varLib] \"Fix\" cython iup issue? (#3704)\n- Cython minor refactor (#3705)\n\n\n4.55.0 (released 2024-11-14)\n----------------------------\n\n- [cffLib.specializer] Adjust stack use calculation (#3689)\n- [varLib] Lets not add mac names if the rest of name doesn't have them (#3688)\n- [ttLib.reorderGlyphs] Update CFF table charstrings and charset (#3682)\n- [cffLib.specializer] Add cmdline to specialize a CFF2 font (#3675, #3679)\n- [CFF2] Lift uint16 VariationStore.length limitation (#3674)\n- [subset] consider variation selectors subsetting cmap14 (#3672)\n- [varLib.interpolatable] Support CFF2 fonts (#3670)\n- Set isfinal to true in XML parser for proper resource cleanup (#3669)\n- [removeOverlaps] Fix CFF CharString width (#3659)\n- [glyf] Add optimizeSize option (#3657)\n- Python 3.13 support (#3656)\n- [TupleVariation] Optimize for loading speed, not size (#3650, #3653)\n\n\n4.54.1 (released 2024-09-24)\n----------------------------\n\n- [unicodedata] Update to Unicode 16\n- [subset] Escape ``\\\\`` in doc string\n\n4.54.0 (released 2024-09-23)\n----------------------------\n\n- [Docs] Small docs cleanups by @n8willis (#3611)\n- [Docs] cleanup code blocks by @n8willis (#3627)\n- [Docs] fix Sphinx builds by @n8willis (#3625)\n- [merge] Minor fixes to documentation for merge by @drj11 (#3588)\n- [subset] Small tweaks to pyftsubset documentation by @RoelN (#3633)\n- [Tests] Do not require fonttools command to be available by @behdad (#3612)\n- [Tests] subset_test: add failing test to reproduce issue #3616 by @anthrotype (#3622)\n- [ttLib] NameRecordVisitor: include whole sequence of character variants' UI labels, not just the first by @anthrotype (#3617)\n- [varLib.avar] Reconstruct mappings from binary by @behdad (#3598)\n- [varLib.instancer] Fix visual artefacts with partial L2 instancing by @Hoolean (#3635)\n- [varLib.interpolatable] Support discrete axes in .designspace by @behdad (#3599)\n- [varLib.models] By default, assume OpenType-like normalized space by @behdad (#3601)\n\n4.53.1 (released 2024-07-05)\n----------------------------\n\n- [feaLib] Improve the sharing of inline chained lookups (#3559)\n- [otlLib] Correct the calculation of OS/2.usMaxContext with reversed chaining contextual single substitutions (#3569)\n- [misc.visitor] Visitors search the inheritance chain of objects they are visiting (#3581)\n\n4.53.0 (released 2024-05-31)\n----------------------------\n\n- [ttLib.removeOverlaps] Support CFF table to aid in downconverting CFF2 fonts (#3528)\n- [avar] Fix crash when accessing not-yet-existing attribute (#3550)\n- [docs] Add buildMathTable to otlLib.builder documentation (#3540)\n- [feaLib] Allow UTF-8 with BOM when reading features (#3495)\n- [SVGPathPen] Revert rounding coordinates to two decimal places by default (#3543)\n- [varLib.instancer] Refix output filename decision-making (#3545, #3544, #3548)\n\n4.52.4 (released 2024-05-27)\n----------------------------\n\n- [varLib.cff] Restore and deprecate convertCFFtoCFF2 that was removed in 4.52.0\n release as it is used by downstream projects (#3535).\n\n4.52.3 (released 2024-05-27)\n----------------------------\n\n- Fixed a small syntax error in the reStructuredText-formatted NEWS.rst file\n which caused the upload to PyPI to fail for 4.52.2. No other code changes.\n\n4.52.2 (released 2024-05-27)\n----------------------------\n\n- [varLib.interpolatable] Ensure that scipy/numpy output is JSON-serializable\n (#3522, #3526).\n- [housekeeping] Regenerate table lists, to fix pyinstaller packaging of the new\n ``VARC`` table (#3531, #3529).\n- [cffLib] Make CFFToCFF2 and CFF2ToCFF more robust (#3521, #3525).\n\n4.52.1 (released 2024-05-24)\n----------------------------\n\n- Fixed a small syntax error in the reStructuredText-formatted NEWS.rst file\n which caused the upload to PyPI to fail for 4.52.0. No other code changes.\n\n4.52.0 (released 2024-05-24)\n----------------------------\n\n- Added support for the new ``VARC`` (Variable Composite) table that is being\n proposed to OpenType spec (#3395). For more info:\n https://github.com/harfbuzz/boring-expansion-spec/blob/main/VARC.md\n- [ttLib.__main__] Fixed decompiling all tables (90fed08).\n- [feaLib] Don't reference the same lookup index multiple times within the same\n feature record, it is only applied once anyway (#3520).\n- [cffLib] Moved methods to desubroutinize, remove hints and unused subroutines\n from subset module to cffLib (#3517).\n- [varLib.instancer] Added support for partial-instancing CFF2 tables! Also, added\n method to down-convert from CFF2 to CFF 1.0, and CLI entry points to convert\n CFF<->CFF2 (#3506).\n- [subset] Prune unused user name IDs even with --name-IDs='*' (#3410).\n- [ttx] use GNU-style getopt to intermix options and positional arguments (#3509).\n- [feaLib.variableScalar] Fixed ``value_at_location()`` method (#3491)\n- [psCharStrings] Shorten output of ``encodeFloat`` (#3492).\n- [bezierTools] Fix infinite-recursion in ``calcCubicArcLength`` (#3502).\n- [avar2] Implement ``avar2`` support in ``TTFont.getGlyphSet()`` (#3473).\n\n4.51.0 (released 2024-04-05)\n----------------------------\n\n- [ttLib] Optimization on loading aux fields (#3464).\n- [ttFont] Add reorderGlyphs (#3468).\n\n4.50.0 (released 2024-03-15)\n----------------------------\n\n- [pens] Added decomposing filter pens that draw components as regular contours (#3460).\n- [instancer] Drop explicit no-op axes from TupleVariations (#3457).\n- [cu2qu/ufo] Return set of modified glyph names from fonts_to_quadratic (#3456).\n\n4.49.0 (released 2024-02-15)\n----------------------------\n\n- [otlLib] Add API for building ``MATH`` table (#3446)\n\n4.48.1 (released 2024-02-06)\n----------------------------\n\n- Fixed uploading wheels to PyPI, no code changes since v4.48.0.\n\n4.48.0 (released 2024-02-06)\n----------------------------\n\n- [varLib] Do not log when there are no OTL tables to be merged.\n- [setup.py] Do not restrict lxml<5 any more, tests pass just fine with lxml>=5.\n- [feaLib] Remove glyph and class names length restrictions in FEA (#3424).\n- [roundingPens] Added ``transformRoundFunc`` parameter to the rounding pens to allow\n for custom rounding of the components' transforms (#3426).\n- [feaLib] Keep declaration order of ligature components within a ligature set, instead\n of sorting by glyph name (#3429).\n- [feaLib] Fixed ordering of alternates in ``aalt`` lookups, following the declaration\n order of feature references within the ``aalt`` feature block (#3430).\n- [varLib.instancer] Fixed a bug in the instancer's IUP optimization (#3432).\n- [sbix] Support sbix glyphs with new graphicType \"flip\" (#3433).\n- [svgPathPen] Added ``--glyphs`` option to dump the SVG paths for the named glyphs\n in the font (0572f78).\n- [designspaceLib] Added \"description\" attribute to ```` and ````\n elements, and allow multiple ```` elements to group ```` elements\n that are logically related (#3435, #3437).\n- [otlLib] Correctly choose the most compact GSUB contextual lookup format (#3439).\n\n4.47.2 (released 2024-01-11)\n----------------------------\n\nMinor release to fix uploading wheels to PyPI.\n\n4.47.1 (released 2024-01-11)\n----------------------------\n\n- [merge] Improve help message and add standard command line options (#3408)\n- [otlLib] Pass ``ttFont`` to ``name.addName`` in ``buildStatTable`` (#3406)\n- [featureVars] Re-use ``FeatureVariationRecord``'s when possible (#3413)\n\n4.47.0 (released 2023-12-18)\n----------------------------\n\n- [varLib.models] New API for VariationModel: ``getMasterScalars`` and\n ``interpolateFromValuesAndScalars``.\n- [varLib.interpolatable] Various bugfixes and rendering improvements. In particular,\n add a Summary page in the front, and an Index and Table-of-Contents in the back.\n Change the page size to Letter.\n- [Docs/designspaceLib] Defined a new ``public.fontInfo`` lib key, not used anywhere yet (#3358).\n\n4.46.0 (released 2023-12-02)\n----------------------------\n\n- [featureVars] Allow to register the same set of substitution rules to multiple features.\n The ``addFeatureVariations`` function can now take a list of featureTags; similarly, the\n lib key 'com.github.fonttools.varLib.featureVarsFeatureTag' can now take a\n comma-separateed string of feature tags (e.g. \"salt,ss01\") instead of a single tag (#3360).\n- [featureVars] Don't overwrite GSUB FeatureVariations, but append new records to it\n for features which are not already there. But raise ``VarLibError`` if the feature tag\n already has feature variations associated with it (#3363).\n- [varLib] Added ``addGSUBFeatureVariations`` function to add GSUB Feature Variations\n to an existing variable font from rules defined in a DesignSpace document (#3362).\n- [varLib.interpolatable] Various bugfixes and rendering improvements. In particular,\n a new test for \"underweight\" glyphs. The new test reports quite a few false-positives\n though. Please send feedback.\n\n4.45.1 (released 2023-11-23)\n----------------------------\n\n- [varLib.interpolatable] Various bugfixes and improvements, better reporting, reduced\n false positives.\n- [ttGlyphSet] Added option to not recalculate glyf bounds (#3348).\n\n4.45.0 (released 2023-11-20)\n----------------------------\n\n- [varLib.interpolatable] Vastly improved algorithms. Also available now is ``--pdf``\n and ``--html`` options to generate a PDF or HTML report of the interpolation issues.\n The PDF/HTML report showcases the problematic masters, the interpolated broken\n glyph, as well as the proposed fixed version.\n\n4.44.3 (released 2023-11-15)\n----------------------------\n\n- [subset] Only prune codepage ranges for OS/2.version >= 1, ignore otherwise (#3334).\n- [instancer] Ensure hhea vertical metrics stay in sync with OS/2 ones after instancing\n MVAR table containing 'hasc', 'hdsc' or 'hlgp' tags (#3297).\n\n4.44.2 (released 2023-11-14)\n----------------------------\n\n- [glyf] Have ``Glyph.recalcBounds`` skip empty components (base glyph with no contours)\n when computing the bounding box of composite glyphs. This simply restores the existing\n behavior before some changes were introduced in fonttools 4.44.0 (#3333).\n\n4.44.1 (released 2023-11-14)\n----------------------------\n\n- [feaLib] Ensure variable mark anchors are deep-copied while building since they\n get modified in-place and later reused (#3330).\n- [OS/2|subset] Added method to ``recalcCodePageRanges`` to OS/2 table class; added\n ``--prune-codepage-ranges`` to `fonttools subset` command (#3328, #2607).\n\n4.44.0 (released 2023-11-03)\n----------------------------\n\n- [instancer] Recalc OS/2 AvgCharWidth after instancing if default changes (#3317).\n- [otlLib] Make ClassDefBuilder class order match varLib.merger's, i.e. large\n classes first, then glyph lexicographic order (#3321, #3324).\n- [instancer] Allow not specifying any of min:default:max values and let be filled\n up with fvar's values (#3322, #3323).\n- [instancer] When running --update-name-table ignore axes that have no STAT axis\n values (#3318, #3319).\n- [Debg] When dumping to ttx, write the embedded JSON as multi-line string with\n indentation (92cbfee0d).\n- [varStore] Handle > 65535 items per encoding by splitting VarData subtable (#3310).\n- [subset] Handle null-offsets in MarkLigPos subtables.\n- [subset] Keep East Asian spacing fatures vhal, halt, chws, vchw by default (#3305).\n- [instancer.solver] Fixed case where axisDef < lower and upper < axisMax (#3304).\n- [glyf] Speed up compilation, mostly around ``recalcBounds`` (#3301).\n- [varLib.interpolatable] Speed it up when working on variable fonts, plus various\n micro-optimizations (#3300).\n- Require unicodedata2 >= 15.1.0 when installed with 'unicode' extra, contains UCD 15.1.\n\n4.43.1 (released 2023-10-06)\n----------------------------\n\n- [EBDT] Fixed TypeError exception in `_reverseBytes` method triggered when dumping\n some bitmap fonts with `ttx -z bitwise` option (#3162).\n- [v/hhea] Fixed UnboundLocalError exception in ``recalc`` method when no vmtx or hmtx\n tables are present (#3290).\n- [bezierTools] Fixed incorrectly typed cython local variable leading to TypeError when\n calling ``calcQuadraticArcLength`` (#3288).\n- [feaLib/otlLib] Better error message when building Coverage table with missing glyph (#3286).\n\n4.43.0 (released 2023-09-29)\n----------------------------\n\n- [subset] Set up lxml ``XMLParser(resolve_entities=False)`` when parsing OT-SVG documents\n to prevent XML External Entity (XXE) attacks (9f61271dc):\n https://codeql.github.com/codeql-query-help/python/py-xxe/\n- [varLib.iup] Added workaround for a Cython bug in ``iup_delta_optimize`` that was\n leading to IUP tolerance being incorrectly initialised, resulting in sub-optimal deltas\n (60126435d, cython/cython#5732).\n- [varLib] Added new command-line entry point ``fonttools varLib.avar`` to add an\n ``avar`` table to an existing VF from axes mappings in a .designspace file (0a3360e52).\n- [instancer] Fixed bug whereby no longer used variation regions were not correctly pruned\n after VarData optimization (#3268).\n- Added support for Python 3.12 (#3283).\n\n4.42.1 (released 2023-08-20)\n----------------------------\n\n- [t1Lib] Fixed several Type 1 issues (#3238, #3240).\n- [otBase/packer] Allow sharing tables reached by different offset sizes (#3241, #3236).\n- [varLib/merger] Fix Cursive attachment merging error when all anchors are NULL (#3248, #3247).\n- [ttLib] Fixed warning when calling ``addMultilingualName`` and ``ttFont`` parameter was not\n passed on to ``findMultilingualName`` (#3253).\n\n4.42.0 (released 2023-08-02)\n----------------------------\n\n- [varLib] Use sentinel value 0xFFFF to mark a glyph advance in hmtx/vmtx as non\n participating, allowing sparse masters to contain glyphs for variation purposes other\n than {H,V}VAR (#3235).\n- [varLib/cff] Treat empty glyphs in non-default masters as missing, thus not participating\n in CFF2 delta computation, similarly to how varLib already treats them for gvar (#3234).\n- Added varLib.avarPlanner script to deduce 'correct' avar v1 axis mappings based on\n glyph average weights (#3223).\n\n4.41.1 (released 2023-07-21)\n----------------------------\n\n- [subset] Fixed perf regression in v4.41.0 by making ``NameRecordVisitor`` only visit\n tables that do contain nameID references (#3213, #3214).\n- [varLib.instancer] Support instancing fonts containing null ConditionSet offsets in\n FeatureVariationRecords (#3211, #3212).\n- [statisticsPen] Report font glyph-average weight/width and font-wide slant.\n- [fontBuilder] Fixed head.created date incorrectly set to 0 instead of the current\n timestamp, regression introduced in v4.40.0 (#3210).\n- [varLib.merger] Support sparse ``CursivePos`` masters (#3209).\n\n4.41.0 (released 2023-07-12)\n----------------------------\n\n- [fontBuilder] Fixed bug in setupOS2 with default panose attribute incorrectly being\n set to a dict instead of a Panose object (#3201).\n- [name] Added method to ``removeUnusedNameRecords`` in the user range (#3185).\n- [varLib.instancer] Fixed issue with L4 instancing (moving default) (#3179).\n- [cffLib] Use latin1 so we can roundtrip non-ASCII in {Full,Font,Family}Name (#3202).\n- [designspaceLib] Mark as optional in docs (as it is in the code).\n- [glyf-1] Fixed drawPoints() bug whereby last cubic segment becomes quadratic (#3189, #3190).\n- [fontBuilder] Propagate the 'hidden' flag to the fvar Axis instance (#3184).\n- [fontBuilder] Update setupAvar() to also support avar 2, fixing ``_add_avar()`` call\n site (#3183).\n- Added new ``voltLib.voltToFea`` submodule (originally Tiro Typeworks' \"Volto\") for\n converting VOLT OpenType Layout sources to FEA format (#3164).\n\n4.40.0 (released 2023-06-12)\n----------------------------\n\n- Published native binary wheels to PyPI for all the python minor versions and platform\n and architectures currently supported that would benefit from this. They will include\n precompiled Cython-accelerated modules (e.g. cu2qu) without requiring to compile them\n from source. The pure-python wheel and source distribution will continue to be\n published as always (pip will automatically chose them when no binary wheel is\n available for the given platform, e.g. pypy). Use ``pip install --no-binary=fonttools fonttools``\n to expliclity request pip to install from the pure-python source.\n- [designspaceLib|varLib] Add initial support for specifying axis mappings and build\n ``avar2`` table from those (#3123).\n- [feaLib] Support variable ligature caret position (#3130).\n- [varLib|glyf] Added option to --drop-implied-oncurves; test for impliable oncurve\n points either before or after rounding (#3146, #3147, #3155, #3156).\n- [TTGlyphPointPen] Don't error with empty contours, simply ignore them (#3145).\n- [sfnt] Fixed str vs bytes remnant of py3 transition in code dealing with de/compiling\n WOFF metadata (#3129).\n- [instancer-solver] Fixed bug when moving default instance with sparse masters (#3139, #3140).\n- [feaLib] Simplify variable scalars that don’t vary (#3132).\n- [pens] Added filter pen that explicitly emits closing line when lastPt != movePt (#3100).\n- [varStore] Improve optimize algorithm and better document the algorithm (#3124, #3127).\n Added ``quantization`` option (#3126).\n- Added CI workflow config file for building native binary wheels (#3121).\n- [fontBuilder] Added glyphDataFormat=0 option; raise error when glyphs contain cubic\n outlines but glyphDataFormat was not explicitly set to 1 (#3113, #3119).\n- [subset] Prune emptied GDEF.MarkGlyphSetsDef and remap indices; ensure GDEF is\n subsetted before GSUB and GPOS (#3114, #3118).\n- [xmlReader] Fixed issue whereby DSIG table data was incorrectly parsed (#3115, #2614).\n- [varLib/merger] Fixed merging of SinglePos with pos=0 (#3111, #3112).\n- [feaLib] Demote \"Feature has not been defined\" error to a warning when building aalt\n and referenced feature is empty (#3110).\n- [feaLib] Dedupe multiple substitutions with classes (#3105).\n\n4.39.4 (released 2023-05-10)\n----------------------------\n\n- [varLib.interpolatable] Allow for sparse masters (#3075)\n- [merge] Handle differing default/nominalWidthX in CFF (#3070)\n- [ttLib] Add missing main.py file to ttLib package (#3088)\n- [ttx] Fix missing composite instructions in XML (#3092)\n- [ttx] Fix split tables option to work on filenames containing '%' (#3096)\n- [featureVars] Process lookups for features other than rvrn last (#3099)\n- [feaLib] support multiple substitution with classes (#3103)\n\n4.39.3 (released 2023-03-28)\n----------------------------\n\n- [sbix] Fixed TypeError when compiling empty glyphs whose imageData is None, regression\n was introduced in v4.39 (#3059).\n- [ttFont] Fixed AttributeError on python <= 3.10 when opening a TTFont from a tempfile\n SpooledTemporaryFile, seekable method only added on python 3.11 (#3052).\n\n4.39.2 (released 2023-03-16)\n----------------------------\n\n- [varLib] Fixed regression introduced in 4.39.1 whereby an incomplete 'STAT' table\n would be built even though a DesignSpace v5 did contain 'STAT' definitions (#3045, #3046).\n\n4.39.1 (released 2023-03-16)\n----------------------------\n\n- [avar2] Added experimental support for reading/writing avar version 2 as specified in\n this draft proposal: https://github.com/harfbuzz/boring-expansion-spec/blob/main/avar2.md\n- [glifLib] Wrap underlying XML library exceptions with GlifLibError when parsing GLIFs,\n and also print the name and path of the glyph that fails to be parsed (#3042).\n- [feaLib] Consult avar for normalizing user-space values in ConditionSets and in\n VariableScalars (#3042, #3043).\n- [ttProgram] Handle string input to Program.fromAssembly() (#3038).\n- [otlLib] Added a config option to emit GPOS 7 lookups, currently disabled by default\n because of a macOS bug (#3034).\n- [COLRv1] Added method to automatically compute ClipBoxes (#3027).\n- [ttFont] Fixed getGlyphID to raise KeyError on missing glyphs instead of returning\n None. The regression was introduced in v4.27.0 (#3032).\n- [sbix] Fixed UnboundLocalError: cannot access local variable 'rawdata' (#3031).\n- [varLib] When building VF, do not overwrite a pre-existing ``STAT`` table that was built\n with feaLib from FEA feature file. Also, added support for building multiple VFs\n defined in Designspace v5 from ``fonttools varLib`` script (#3024).\n- [mtiLib] Only add ``Debg`` table with lookup names when ``FONTTOOLS_LOOKUP_DEBUGGING``\n env variable is set (#3023).\n\n4.39.0 (released 2023-03-06)\n----------------------------\n\n- [mtiLib] Optionally add `Debg` debug info for MTI feature builds (#3018).\n- [ttx] Support reading input file from standard input using special `-` character,\n similar to existing `-o -` option to write output to standard output (#3020).\n- [cython] Prevent ``cython.compiled`` raise AttributeError if cython not installed\n properly (#3017).\n- [OS/2] Guard against ZeroDivisionError when calculating xAvgCharWidth in the unlikely\n scenario no glyph has non-zero advance (#3015).\n- [subset] Recompute xAvgCharWidth independently of --no-prune-unicode-ranges,\n previously the two options were involuntarily bundled together (#3012).\n- [fontBuilder] Add ``debug`` parameter to addOpenTypeFeatures method to add source\n debugging information to the font in the ``Debg`` private table (#3008).\n- [name] Make NameRecord `__lt__` comparison not fail on Unicode encoding errors (#3006).\n- [featureVars] Fixed bug in ``overlayBox`` (#3003, #3005).\n- [glyf] Added experimental support for cubic bezier curves in TrueType glyf table, as\n outlined in glyf v1 proposal (#2988):\n https://github.com/harfbuzz/boring-expansion-spec/blob/main/glyf1-cubicOutlines.md\n- Added new qu2cu module and related qu2cuPen, the reverse of cu2qu for converting\n TrueType quadratic splines to cubic bezier curves (#2993).\n- [glyf] Added experimental support for reading and writing Variable Composites/Components\n as defined in glyf v1 spec proposal (#2958):\n https://github.com/harfbuzz/boring-expansion-spec/blob/main/glyf1-varComposites.md.\n- [pens]: Added `addVarComponent` method to pen protocols' base classes, which pens can implement\n to handle varcomponents (by default they get decomposed) (#2958).\n- [misc.transform] Added DecomposedTransform class which implements an affine transformation\n with separate translate, rotation, scale, skew, and transformation-center components (#2598)\n- [sbix] Ensure Glyph.referenceGlyphName is set; fixes error after dumping and\n re-compiling sbix table with 'dupe' glyphs (#2984).\n- [feaLib] Be cleverer when merging chained single substitutions into same lookup\n when they are specified using the inline notation (#2150, #2974).\n- [instancer] Clamp user-inputted axis ranges to those of fvar (#2959).\n- [otBase/subset] Define ``__getstate__`` for BaseTable so that a copied/pickled 'lazy'\n object gets its own OTTableReader to read from; incidentally fixes a bug while\n subsetting COLRv1 table containing ClipBoxes on python 3.11 (#2965, #2968).\n- [sbix] Handle glyphs with \"dupe\" graphic type on compile correctly (#2963).\n- [glyf] ``endPointsOfContours`` field should be unsigned! Kudos to behdad for\n spotting one of the oldest bugs in FT. Probably nobody has ever dared to make\n glyphs with more than 32767 points... (#2957).\n- [feaLib] Fixed handling of ``ignore`` statements with unmarked glyphs to match\n makeotf behavior, which assumes the first glyph is marked (#2950).\n- Reformatted code with ``black`` and enforce new code style via CI check (#2925).\n- [feaLib] Sort name table entries following OT spec prescribed order in the builder (#2927).\n- [cu2quPen] Add Cu2QuMultiPen that converts multiple outlines at a time in\n interpolation compatible way; its methods take a list of tuples arguments\n that would normally be passed to individual segment pens, and at the end it\n dispatches the converted outlines to each pen (#2912).\n- [reverseContourPen/ttGlyphPen] Add outputImpliedClosingLine option (#2913, #2914,\n #2921, #2922, #2995).\n- [gvar] Avoid expanding all glyphs unnecessarily upon compile (#2918).\n- [scaleUpem] Fixed bug whereby CFF2 vsindex was scaled; it should not (#2893, #2894).\n- [designspaceLib] Add DS.getAxisByTag and refactor getAxis (#2891).\n- [unicodedata] map Zmth<->math in ot_tag_{to,from}_script (#1737, #2889).\n- [woff2] Support encoding/decoding OVERLAP_SIMPLE glyf flags (#2576, #2884).\n- [instancer] Update OS/2 class and post.italicAngle when default moved (L4)\n- Dropped support for Python 3.7 which reached EOL, fontTools requires 3.8+.\n- [instancer] Fixed instantiateFeatureVariations logic when a rule range becomes\n default-applicable (#2737, #2880).\n- [ttLib] Add main to ttFont and ttCollection that just decompile and re-compile the\n input font (#2869).\n- [featureVars] Insert 'rvrn' lookup at the beginning of LookupList, to work around bug\n in Apple implementation of 'rvrn' feature which the spec says it should be processed\n early whereas on macOS 10.15 it follows lookup order (#2140, #2867).\n- [instancer/mutator] Remove 'DSIG' table if present.\n- [svgPathPen] Don't close path in endPath(), assume open unless closePath() (#2089, #2865).\n\n4.38.0 (released 2022-10-21)\n----------------------------\n\n- [varLib.instancer] Added support for L4 instancing, i.e. moving the default value of\n an axis while keeping it variable. Thanks Behdad! (#2728, #2861).\n It's now also possible to restrict an axis min/max values beyond the current default\n value, e.g. a font wght has min=100, def=400, max=900 and you want a partial VF that\n only varies between 500 and 700, you can now do that.\n You can either specify two min/max values (wght=500:700), and the new default will be\n set to either the minimum or maximum, depending on which one is closer to the current\n default (e.g. 500 in this case). Or you can specify three values (e.g. wght=500:600:700)\n to specify the new default value explicitly.\n- [otlLib/featureVars] Set a few Count values so one doesn't need to compile the font\n to update them (#2860).\n- [varLib.models] Make extrapolation work for 2-master models as well where one master\n is at the default location (#2843, #2846).\n Add optional extrapolate=False to normalizeLocation() (#2847, #2849).\n- [varLib.cff] Fixed sub-optimal packing of CFF2 deltas by no longer rounding them to\n integer (#2838).\n- [scaleUpem] Calculate numShorts in VarData after scale; handle CFF hintmasks (#2840).\n\n4.37.4 (released 2022-09-30)\n----------------------------\n\n- [subset] Keep nameIDs used by CPAL palette entry labels (#2837).\n- [varLib] Avoid negative hmtx values when creating font from variable CFF2 font (#2827).\n- [instancer] Don't prune stat.ElidedFallbackNameID (#2828).\n- [unicodedata] Update Scripts/Blocks to Unicode 15.0 (#2833).\n\n4.37.3 (released 2022-09-20)\n----------------------------\n\n- Fix arguments in calls to (glyf) glyph.draw() and drawPoints(), whereby offset wasn't\n correctly passed down; this fix also exposed a second bug, where lsb and tsb were not\n set (#2824, #2825, adobe-type-tools/afdko#1560).\n\n4.37.2 (released 2022-09-15)\n----------------------------\n\n- [subset] Keep CPAL table and don't attempt to prune unused color indices if OT-SVG\n table is present even if COLR table was subsetted away; OT-SVG may be referencing the\n CPAL table; for now we assume that's the case (#2814, #2815).\n- [varLib.instancer] Downgrade GPOS/GSUB version if there are no more FeatureVariations\n after instancing (#2812).\n- [subset] Added ``--no-lazy`` to optionally load fonts eagerly (mostly to ease\n debugging of table lazy loading, no practical effects) (#2807).\n- [varLib] Avoid building empty COLR.DeltaSetIndexMap with only identity mappings (#2803).\n- [feaLib] Allow multiple value record types (by promoting to the most general format)\n within the same PairPos subtable; e.g. this allows variable and non variable kerning\n rules to share the same subtable. This also fixes a bug whereby some kerning pairs\n would become unreachable while shapiong because of premature subtable splitting (#2772, #2776).\n- [feaLib] Speed up ``VarScalar`` by caching models for recurring master locations (#2798).\n- [feaLib] Optionally cythonize ``feaLib.lexer``, speeds up parsing FEA a bit (#2799).\n- [designspaceLib] Avoid crash when handling unbounded rule conditions (#2797).\n- [post] Don't crash if ``post`` legacy format 1 is malformed/improperly used (#2786)\n- [gvar] Don't be \"lazy\" (load all glyph variations up front) when TTFont.lazy=False (#2771).\n- [TTFont] Added ``normalizeLocation`` method to normalize a location dict from the\n font's defined axes space (also known as \"user space\") into the normalized (-1..+1)\n space. It applies ``avar`` mapping if the font contains an ``avar`` table (#2789).\n- [TTVarGlyphSet] Support drawing glyph instances from CFF2 variable glyph set (#2784).\n- [fontBuilder] Do not error when building cmap if there are zero code points (#2785).\n- [varLib.plot] Added ability to plot a variation model and set of accompaning master\n values corresponding to the model's master locations into a pyplot figure (#2767).\n- [Snippets] Added ``statShape.py`` script to draw statistical shape of a glyph as an\n ellips (requires pycairo) (baecd88).\n- [TTVarGlyphSet] implement drawPoints natively, avoiding going through\n SegmentToPointPen (#2778).\n- [TTVarGlyphSet] Fixed bug whereby drawing a composite glyph multiple times, its\n components would shif; needed an extra copy (#2774).\n\n4.37.1 (released 2022-08-24)\n----------------------------\n\n- [subset] Fixed regression introduced with v4.37.0 while subsetting the VarStore of\n ``HVAR`` and ``VVAR`` tables, whereby an ``AttributeError: subset_varidxes`` was\n thrown because an apparently unused import statement (with the side-effect of\n dynamically binding that ``subset_varidxes`` method to the VarStore class) had been\n accidentally deleted in an unrelated PR (#2679, #2773).\n- [pens] Added ``cairoPen`` (#2678).\n- [gvar] Read ``gvar`` more lazily by not parsing all of the ``glyf`` table (#2771).\n- [ttGlyphSet] Make ``drawPoints(pointPen)`` method work for CFF fonts as well via\n adapter pen (#2770).\n\n4.37.0 (released 2022-08-23)\n----------------------------\n\n- [varLib.models] Reverted PR #2717 which added support for \"narrow tents\" in v4.36.0,\n as it introduced a regression (#2764, #2765). It will be restored in upcoming release\n once we found a solution to the bug.\n- [cff.specializer] Fixed issue in charstring generalizer with the ``blend`` operator\n (#2750, #1975).\n- [varLib.models] Added support for extrapolation (#2757).\n- [ttGlyphSet] Ensure the newly added ``_TTVarGlyphSet`` inherits from ``_TTGlyphSet``\n to keep backward compatibility with existing API (#2762).\n- [kern] Allow compiling legacy kern tables with more than 64k entries (d21cfdede).\n- [visitor] Added new visitor API to traverse tree of objects and dispatch based\n on the attribute type: cf. ``fontTools.misc.visitor`` and ``fontTools.ttLib.ttVisitor``. Added ``fontTools.ttLib.scaleUpem`` module that uses the latter to\n change a font's units-per-em and scale all the related fields accordingly (#2718,\n #2755).\n\n4.36.0 (released 2022-08-17)\n----------------------------\n\n- [varLib.models] Use a simpler model that generates narrower \"tents\" (regions, master\n supports) whenever possible: specifically when any two axes that actively \"cooperate\"\n (have masters at non-zero positions for both axes) have a complete set of intermediates.\n The simpler algorithm produces fewer overlapping regions and behaves better with\n respect to rounding at the peak positions than the generic solver, always matching\n intermediate masters exactly, instead of maximally 0.5 units off. This may be useful\n when 100% metrics compatibility is desired (#2218, #2717).\n- [feaLib] Remove warning when about ``GDEF`` not being built when explicitly not\n requested; don't build one unconditonally even when not requested (#2744, also works\n around #2747).\n- [ttFont] ``TTFont.getGlyphSet`` method now supports selecting a location that\n represents an instance of a variable font (supports both user-scale and normalized\n axes coordinates via the ``normalized=False`` parameter). Currently this only works\n for TrueType-flavored variable fonts (#2738).\n\n4.35.0 (released 2022-08-15)\n----------------------------\n\n- [otData/otConverters] Added support for 'biased' PaintSweepGradient start/end angles\n to match latest COLRv1 spec (#2743).\n- [varLib.instancer] Fixed bug in ``_instantiateFeatureVariations`` when at the same\n time pinning one axis and restricting the range of a subsequent axis; the wrong axis\n tag was being used in the latter step (as the records' axisIdx was updated in the\n preceding step but looked up using the old axes order in the following step) (#2733,\n #2734).\n- [mtiLib] Pad script tags with space when less than 4 char long (#1727).\n- [merge] Use ``'.'`` instead of ``'#'`` in duplicate glyph names (#2742).\n- [gvar] Added support for lazily loading glyph variations (#2741).\n- [varLib] In ``build_many``, we forgot to pass on ``colr_layer_reuse`` parameter to\n the ``build`` method (#2730).\n- [svgPathPen] Add a main that prints SVG for input text (6df779fd).\n- [cffLib.width] Fixed off-by-one in optimized values; previous code didn't match the\n code block above it (2963fa50).\n- [varLib.interpolatable] Support reading .designspace and .glyphs files (via optional\n ``glyphsLib``).\n- Compile some modules with Cython when available and building/installing fonttools\n from source: ``varLib.iup`` (35% faster), ``pens.momentsPen`` (makes\n ``varLib.interpolatable`` 3x faster).\n- [feaLib] Allow features to be built for VF without also building a GDEF table (e.g.\n only build GSUB); warn when GDEF would be needed but isn't requested (#2705, 2694).\n- [otBase] Fixed ``AttributeError`` when uharfbuzz < 0.23.0 and 'repack' method is\n missing (32aa8eaf). Use new ``uharfbuzz.repack_with_tag`` when available (since\n uharfbuzz>=0.30.0), enables table-specific optimizations to be performed during\n repacking (#2724).\n- [statisticsPen] By default report all glyphs (4139d891). Avoid division-by-zero\n (52b28f90).\n- [feaLib] Added missing required argument to FeatureLibError exception (#2693)\n- [varLib.merge] Fixed error during error reporting (#2689). Fixed undefined\n ``NotANone`` variable (#2714).\n\n4.34.4 (released 2022-07-07)\n----------------------------\n\n- Fixed typo in varLib/merger.py that causes NameError merging COLR glyphs\n containing more than 255 layers (#2685).\n\n4.34.3 (released 2022-07-07)\n----------------------------\n\n- [designspaceLib] Don't make up bad PS names when no STAT data (#2684)\n\n4.34.2 (released 2022-07-06)\n----------------------------\n\n- [varStore/subset] fixed KeyError exception to do with NO_VARIATION_INDEX while\n subsetting varidxes in GPOS/GDEF (a08140d).\n\n4.34.1 (released 2022-07-06)\n----------------------------\n\n- [instancer] When optimizing HVAR/VVAR VarStore, use_NO_VARIATION_INDEX=False to avoid\n including NO_VARIATION_INDEX in AdvWidthMap, RsbMap, LsbMap mappings, which would\n push the VarIdx width to maximum (4bytes), which is not desirable. This also fixes\n a hard crash when attempting to subset a varfont after it had been partially instanced\n with use_NO_VARIATION_INDEX=True.\n\n4.34.0 (released 2022-07-06)\n----------------------------\n\n- [instancer] Set RIBBI bits in head and OS/2 table when cutting instances and the\n subfamily nameID=2 contains strings like 'Italic' or 'Bold' (#2673).\n- [otTraverse] Addded module containing methods for traversing trees of otData tables\n (#2660).\n- [otTables] Made DeltaSetIndexMap TTX dump less verbose by omitting no-op entries\n (#2660).\n- [colorLib.builder] Added option to disable PaintColrLayers's reuse of layers from\n LayerList (#2660).\n- [varLib] Added support for merging multiple master COLRv1 tables into a variable\n COLR table (#2660, #2328). Base color glyphs of same name in different masters must have\n identical paint graph structure (incl. number of layers, palette indices, number\n of color line stops, corresponding paint formats at each level of the graph),\n but can differ in the variable fields (e.g. PaintSolid.Alpha). PaintVar* tables\n are produced when this happens and a VarStore/DeltaSetIndexMap is added to the\n variable COLR table. It is possible for non-default masters to be 'sparse', i.e.\n omit some of the color glyphs present in the default master.\n- [feaLib] Let the Parser set nameIDs 1 through 6 that were previously reserved (#2675).\n- [varLib.varStore] Support NO_VARIATION_INDEX in optimizer and instancer.\n- [feaLib] Show all missing glyphs at once at end of parsing (#2665).\n- [varLib.iup] Rewrite force-set conditions and limit DP loopback length (#2651).\n For Noto Sans, IUP time drops from 23s down to 9s, with only a slight size increase\n in the final font. This basically turns the algorithm from O(n^3) into O(n).\n- [featureVars] Report about missing glyphs in substitution rules (#2654).\n- [mutator/instancer] Added CLI flag to --no-recalc-timestamp (#2649).\n- [SVG] Allow individual SVG documents in SVG OT table to be compressed on uncompressed,\n and remember that when roundtripping to/from ttx. The SVG.docList is now a list\n of SVGDocument namedtuple-like dataclass containing an extra ``compressed`` field,\n and no longer a bare 3-tuple (#2645).\n- [designspaceLib] Check for descriptor types with hasattr() to allow custom classes\n that don't inherit the default descriptors (#2634).\n- [subset] Enable sharing across subtables of extension lookups for harfbuzz packing\n (#2626). Updated how table packing falls back to fontTools from harfbuzz (#2668).\n- [subset] Updated default feature tags following current Harfbuzz (#2637).\n- [svgLib] Fixed regex for real number to support e.g. 1e-4 in addition to 1.0e-4.\n Support parsing negative rx, ry on arc commands (#2596, #2611).\n- [subset] Fixed subsetting SinglePosFormat2 when ValueFormat=0 (#2603).\n\n4.33.3 (released 2022-04-26)\n----------------------------\n\n- [designspaceLib] Fixed typo in ``deepcopyExceptFonts`` method, preventing font\n references to be transferred (#2600). Fixed another typo in the name of ``Range``\n dataclass's ``__post_init__`` magic method (#2597).\n\n4.33.2 (released 2022-04-22)\n----------------------------\n\n- [otBase] Make logging less verbose when harfbuzz fails to serialize. Do not exit\n at the first failure but continue attempting to fix offset overflow error using\n the pure-python serializer even when the ``USE_HARFBUZZ_REPACKER`` option was\n explicitly set to ``True``. This is normal with fonts with relatively large\n tables, at least until hb.repack implements proper table splitting.\n\n4.33.1 (released 2022-04-22)\n----------------------------\n\n- [otlLib] Put back the ``FONTTOOLS_GPOS_COMPACT_MODE`` environment variable to fix\n regression in ufo2ft (and thus fontmake) introduced with v4.33.0 (#2592, #2593).\n This is deprecated and will be removed one ufo2ft gets updated to use the new\n config setup.\n\n4.33.0 (released 2022-04-21)\n----------------------------\n\n- [OS/2 / merge] Automatically recalculate ``OS/2.xAvgCharWidth`` after merging\n fonts with ``fontTools.merge`` (#2591, #2538).\n- [misc/config] Added ``fontTools.misc.configTools`` module, a generic configuration\n system (#2416, #2439).\n Added ``fontTools.config`` module, a fontTools-specific configuration\n system using ``configTools`` above.\n Attached a ``Config`` object to ``TTFont``.\n- [otlLib] Replaced environment variable for GPOS compression level with an\n equivalent option using the new config system.\n- [designspaceLib] Incremented format version to 5.0 (#2436).\n Added discrete axes, variable fonts, STAT information, either design- or\n user-space location on instances.\n Added ``fontTools.designspaceLib.split`` module to split a designspace\n into sub-spaces that interpolate and that represent the variable fonts\n listed in the document.\n Made instance names optional and allow computing them from STAT data instead.\n Added ``fontTools.designspaceLib.statNames`` module.\n Allow instances to have the same location as a previously defined STAT label.\n Deprecated some attributes:\n ``SourceDescriptor``: ``copyLib``, ``copyInfo``, ``copyGroups``, ``copyFeatures``.\n ``InstanceDescriptor``: ``kerning``, ``info``; ``glyphs``: use rules or sparse\n sources.\n For both, ``location``: use the more explicit designLocation.\n Note: all are soft deprecations and existing code should keep working.\n Updated documentation for Python methods and the XML format.\n- [varLib] Added ``build_many`` to build several variable fonts from a single\n designspace document (#2436).\n Added ``fontTools.varLib.stat`` module to build STAT tables from a designspace\n document.\n- [otBase] Try to use the Harfbuzz Repacker for packing GSUB/GPOS tables when\n ``uharfbuzz`` python bindings are available (#2552). Disable it by setting the\n \"fontTools.ttLib.tables.otBase:USE_HARFBUZZ_REPACKER\" config option to ``False``.\n If the option is set explicitly to ``True`` but ``uharfbuzz`` can't be imported\n or fails to serialize for any reasons, an error will be raised (ImportError or\n uharfbuzz errors).\n- [CFF/T2] Ensure that ``pen.closePath()`` gets called for CFF2 charstrings (#2577).\n Handle implicit CFF2 closePath within ``T2OutlineExtractor`` (#2580).\n\n4.32.0 (released 2022-04-08)\n----------------------------\n\n- [otlLib] Disable GPOS7 optimization to work around bug in Apple CoreText.\n Always force Chaining GPOS8 for now (#2540).\n- [glifLib] Added ``outputImpliedClosingLine=False`` parameter to ``Glyph.draw()``,\n to control behaviour of ``PointToSegmentPen`` (6b4e2e7).\n- [varLib.interpolatable] Check for wrong contour starting point (#2571).\n- [cffLib] Remove leftover ``GlobalState`` class and fix calls to ``TopDictIndex()``\n (#2569, #2570).\n- [instancer] Clear ``AxisValueArray`` if it is empty after instantiating (#2563).\n\n4.31.2 (released 2022-03-22)\n----------------------------\n\n- [varLib] fix instantiation of GPOS SinglePos values (#2555).\n\n4.31.1 (released 2022-03-18)\n----------------------------\n\n- [subset] fix subsetting OT-SVG when glyph id attribute is on the root ``

Dependency	Optional
brotli	true
brotlicffi	true
fs	true
lxml	true
lz4	true
matplotlib	true
munkres	true
pycairo	true
scipy	true
skia-pathops	true
sympy	true
uharfbuzz	true
unicodedata2	true
xattr	true
zopfli	true

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