Log message:
harfbuzz harfbuzz-icu: updated to 4.2.1

4.2.1
Make sure hb_blob_create_from_file_or_fail() always returns nullptr in case of \ 
failure and not empty blob sometimes. (Khaled Hosny)
Add --passthrough-tables option to hb-subset. (Cosimo Lupo)
Reinstate a pause after basic features in Khmer shaper, fixing a regression \ 
introduced in previous release. (Behdad Esfahbod)
Better handling of Regional_Indicator when shaped with RTL-native scripts, \ 
reverting earlier fix that caused regressions in AAT shaping.

Log message:
harfbuzz-icu: catch up with fonts/harfbuzz

Log message:
revbump for textproc/icu update

Log message:
harfbuzz*: update to 4.1.0

Overview of changes leading to 4.1.0
Wednesday, March 23, 2022
====================================
- Various OSS-Fuzz fixes. (Behdad Esfahbod)
- Make fallback vertical-origin match FreeType’s. (Behdad Esfahbod)
- Treat visible viramas like dependent vowels in USE shaper. (David Corbett)
- Apply presentation forms features and discretionary features in one go in
  Indic shaper, which seems to match Uniscribe and CoreText behaviour.
  (Behdad Esfahbod, David Corbett)
- Various bug fixes.

- New API
+hb_set_add_sorted_array()

Log message:
harfbuzz harfbuzz-icu: updated to 4.0.1

4.0.1

Update OpenType to AAT mappings for hist and vrtr features. (Florian Pircher)

Update IANA Language Subtag Registry to 2022-03-02. (David Corbett)

Update USE shaper to allow any non-numeric tail in a symbol cluster, and remove \ 
obsolete data overrides. (David Corbett)

Fix handling of baseline variations to return correctly scaled values. (Matthias \ 
Clasen)

A new experimental hb_subset_repack_or_fail() to repack an array of objects, \ 
eliminating offset overflows. The API is not available unless HarfBuzz is built \ 
with experimental APIs enabled. (Qunxin Liu)

New experimental API
+hb_link_t
+hb_object_t
+hb_subset_repack_or_fail()

Log message:
harfbuzz*: update to 4.0.0

Overview of changes leading to 4.0.0
Tuesday, March 1, 2022
====================================
- New public API to create subset plan and gather information on things like
  glyph mappings in the final subset. The plan can then be passed on to perform
  the subsetting operation. (Garret Rieger)
- Draw API for extracting glyph shapes have been extended and finalized and is
  no longer an experimental API. The draw API supports glyf, CFF and CFF2
  glyph outlines tables, and applies variation settings set on the font as well
  as synthetic slant. The new public API is not backward compatible with the
  previous, non-public, experimental API. (Behdad Esfahbod)
- The hb-view tool will use HarfBuzz draw API to render the glyphs instead of
  cairo-ft when compiled with Cairo 1.17.5 or newer, setting HB_DRAW
  environment variable to 1 or 0 will force using or not use the draw API,
  respectively. (Behdad Esfahbod)
- The hb-shape and hb-view tools now default to using HarfBuzz’s own font
  loading functions (ot) instead of FreeType ones (ft). They also have a new
  option, --font-slant, to apply synthetic slant to the font. (Behdad Esfahbod)
- HarfBuzz now supports more than 65535 (the OpenType limit) glyph shapes and
  metrics. See https://github.com/be-fonts/boring-expansion-spec/issues/6 and
  https://github.com/be-fonts/boring-expansion-spec/issues/7 for details.
  (Behdad Esfahbod)
- New API to get the dominant horizontal baseline tag for a given script.
  (Behdad Esfahbod)
- New API to get the baseline positions from the font, and synthesize missing
  ones. As well as new API to get font metrics and synthesize missing ones.
  (Matthias Clasen)
- Improvements to finding dependencies on Windows when building with Visual
  Studio. (Chun-wei Fan)
- New buffer flag, HB_BUFFER_FLAG_PRODUCE_UNSAFE_TO_CONCAT, that must be set
  during shaping for HB_GLYPH_FLAG_UNSAFE_TO_CONCAT flag to be reliably
  produced. This is to limit the performance hit of producing this flag to when
  it is actually needed. (Behdad Esfahbod)
- Documentation improvements. (Matthias Clasen)

Log message:
harfbuzz-icu: Use INSTALL_LIB instead of LN to create symlinks

Log message:
harfbuzz{,-icu}: update to 3.4.0

Overview of changes leading to 3.4.0
Sunday, February 13, 2022
====================================
- Perform sanity checks on shaping results is now part of “harfbuzz” library
  and can be enabled by setting the buffer flag HB_BUFFER_FLAG_VERIFY.
  (Behdad Esfahbod)
- Arabic Mark Transient Reordering Algorithm have been updated to revision 6.
  (Khaled Hosny)
- ISO 15924 code for mathematical notation, ‘Zmth’, now maps to the OpenType
  ‘math’ tag. (Alexis King)
- It is now possible to get at once all math kerning values for a given glyph
  at a given corner. (Alexis King)
- Fix locale_t portability issues on systems the typdef’s it to a void pointer.
  (Behdad Esfahbod)

- New API:
+HB_BUFFER_FLAG_VERIFY
+HB_OT_TAG_MATH_SCRIPT
+HB_SCRIPT_MATH
+hb_ot_math_kern_entry_t
+hb_ot_math_get_glyph_kernings

- Deprecated API
+HB_OT_MATH_SCRIPT

Log message:
harfbuzz harfbuzz-icu: updated to 3.3.2

3.3.2:
Revert splitting of pair positioning values introduced in 3.3.0 as it proved \ 
problematic.

Log message:
harfbuzz{.-icu}: Update to 3.3.1

* Use GitHub release tarball as distfile.

Changelog:
Overview of changes leading to 3.3.1
Monday, January 31, 2022
====================================
- Fix heap-use-after-free in harfbuzz-subset introduced in previous release.
  (Garret Rieger)

Overview of changes leading to 3.3.0
Monday, January 31, 2022
====================================
- Improved documentation. (Matthias Clasen)
- Internal code cleanup, using C++ standard library more. (Behdad Esfahbod)
- The low 16-bits of face index will be used by hb_face_create() to select a
  face inside a font collection file format, while the high 16-bits will be
  used by hb_font_create() to load the named instance. (Behdad Esfahbod)
- Glyph positions and other font metrics now apply synthetic slant set by
  hb_font_set_synthetic_slant(), for improved positioning for synthetically
  slanted fonts. (Behdad Esfahbod)
- Fixed unintentional locale dependency in hb_variation_to_string() for decimal
  point representation. (Matthias Clasen)
- When applying pair positioning (kerning) the positioning value is split
  between the two sides of the pair for improved cursor positioning between
  such pairs. (Behdad Esfahbod)
- Introduced new HB_GLYPH_FLAG_UNSAFE_TO_CONCAT, to be used in conjunction
  with HB_GLYPH_FLAG_UNSAFE_TO_BREAK for optimizing re-shaping during line
  breaking. Check the documentation for further details. (Behdad Esfahbod)
- Improved handling of macrolanguages when mapping BCP 47 codes to OpenType
  tags. (David Corbett)

- New API:
+HB_GLYPH_FLAG_UNSAFE_TO_CONCAT
+hb_segment_properties_overlay()
+hb_buffer_create_similar()
+hb_font_set_synthetic_slant()
+hb_font_get_synthetic_slant()
+hb_font_get_var_coords_design()

Overview of changes leading to 3.2.0
Friday, November 26, 2021
====================================
"harfbuzz" library improvements:
- Fixed shaping of Apple Color Emoji flags in right-to-left context. (Behdad \ 
Esfahbod)
- Fixed positioning of CFF fonts in HB_TINY profile. (Behdad Esfahbod)
- OpenType 1.9 language tags update. (David Corbett)
- Add HB_NO_VERTICAL config option.
- Add HB_CONFIG_OVERRIDE_H for easier configuration. (Behdad Esfahbod)

"harfbuzz-subset" library improvements:
- Improved packing of cmap, loca, and Ligature tables. (Garret Rieger)
- Significantly improved overflow-resolution strategy in the repacker. (Garret \ 
Rieger)