FONTLOG
STIX Two font family
========================
This file provides detailed information on the STIX Two family of
fonts. This information should be distributed along with the STIX Two
fonts and any derivative works.
Please direct any questions or general comments to the STIX Fonts
project. Bug reports and technical support issues should be submitted
through
https://github.com/stipub/stixfonts
where you can also find a list of known issues.
Basic Font Information
----------------------
INTRODUCTION
The Scientific and Technical Information eXchange (STIX) fonts are
intended to satisfy the demanding needs of authors, publishers,
printers, and others working in the scientific, medical, and technical
fields. They combine a comprehensive Unicode-based collection of
mathematical symbols and alphabets with a set of text faces suitable
for professional publishing. The fonts are available royalty-free
under the SIL Open Font License.
Version 2.0.0 of the STIX fonts, now known as "STIX Two", is a
thorough revision undertaken by the renowned type house Tiro Typeworks
Ltd. (https://www.tiro.com). The STIX Two fonts consist of one Math
font, two variable text fonts (STIXTwoTextVF-Roman and
STIXTwoTextVF-Italic), and eight static text fonts (Regular, Italic,
Medium, Medium Italic, Semibold, Semibold Italic, Bold, and Bold
Italic) derived from the variable fonts. Together, they provide a
uniform set of fonts that can be used throughout the production
process, whether that be a traditional print-only process, an entirely
electronic one, or a combination of the two.
The STIX project began through the joint efforts of American
Mathematical Society (AMS), American Institute of Physics (AIP),
American Physical Society (APS), American Chemical Society (ACS),
Institute of Electrical and Electronic Engineers (IEEE), and Elsevier.
These companies are collectively known as the STI Pub companies.
A FRESH TAKE ON TIMES ROMAN
The original version of STIX was based on Times Roman, which has now
been updated for the digital age.
As is well known, Times Roman was originally intended for printing the
London Times. What is not generally appreciated is that the
production quality of the *Times* was atypically high: It was printed
on unusually high-quality paper on presses that operated more slowly
than most newspaper presses. This allowed for the design of a
typeface that could exploit this level of care: serifs could be much
finer and counters (enclosed areas such as that in the lowercase e)
could be much smaller than in other newspaper typefaces. These
features of the font have not always fared well in less exacting
environments. At the same time, a notable quirk of the Times Roman
family is that the bold font is, in many respects, strikingly
dissimilar to the roman font.
Tiro Typeworks explain their approach to updating the Times Roman
basis of STIX as follows:
"Our principal goal in approaching STIX Two was to address several
inherent deficiencies in the Times New Roman model as well as
expand the typographic features. This process necessarily
involved diverging somewhat from Times, given that many features
of that typeface are either incompatible with current printing
methods and electronic reading environments, and some others too
esoteric to repeat. That said, the essential 'Times-ness'
remains, we believe, and such changes won't distract readers and
users in any negative way.
"At the core of Times' problems was inappropriate digitization,
using an optical size model too large to be scaled down to text
sizes, with compensations appropriate to its original purpose and
printing technique, but not for 21st century conditions. We have
also re-thought somewhat overall proportions and spacing, with
changes made in varying degrees to both the Roman and the Italic
(and we have begun to harmonize the Bold, which has always been a
major shortcoming with Times New Roman)."
ChangeLog
---------
13 January 2021, STIX Two, version 2.11
* Changed "Semibold" to "SemiBold" in all font and file names.
* Fixed various technical issues required for compatibility with the
Google Fonts platform. There were no changes to font metrics or
glyph shapes.
-----------------------------------
18 December 2020, STIX Two, version 2.10
For compatibility with the internal major/minor versioning convention
used by the OpenType font format, the public version number was
switched from the three-part semantic versioning convention to a
two-part number.
All non-variable fonts are now available in both OTF and TTF formats.
The WOFF format is no longer distributed.
COMPATIBILITY BETWEEN 2.0.2 AND 2.10
There have been extensive changes to both glyph shapes and font
metrics in this release. These could affect the layout of documents
prepared with previous versions of these fonts.
UPDATES TO MATH AND TEXT FONTS
The following changes apply to both the text and math fonts:
* Removed the Macintosh platform entries from the name table as they
are now considered obsolete.
* Completed U+2100..214F Letterlike Symbols by adding
U+2100 ACCOUNT OF
U+2101 ADDRESSED TO THE SUBJECT
U+2103 DEGREE CELSIUS
U+2104 CENTRE LINE SYMBOL
U+2106 CADA UNA
U+2108 SCRUPLE
U+2109 DEGREE FAHRENHEIT
U+2114 L B BAR SYMBOL
U+211F RESPONSE
U+2120 SERVICE MARK
U+2121 TELEPHONE SIGN
U+2123 VERSICLE
U+212A KELVIN SIGN
U+2139 INFORMATION SOURCE
U+213A ROTATED CAPITAL Q
U+213B ROTATED CAPITAL Q
U+214C PER SIGN
U+214D AKTIESELSKAB
U+214E TURNED SMALL F
U+214F SYMBOL FOR SAMARITAN SOURCE
* Extended U+2000..206F General Punctuation by adding
U+2000 EN QUAD
U+2001 EM QUAD
U+2002 EN SPACE
U+2003 EM SPACE
U+2004 THREE-PER-EM SPACE
U+2005 FOUR-PER-EM SPACE
U+2006 SIX-PER-EM SPACE
U+2007 FIGURE SPACE
U+2008 PUNCTUATION SPACE
U+2009 THIN SPACE
U+200A HAIR SPACE
U+200B ZERO WIDTH SPACE
U+200C ZERO WIDTH NON-JOINER
U+200D ZERO WIDTH JOINER
U+202F NARROW NO-BREAK SPACE
In addition, U+2026 HORIZONTAL ELLIPSIS was redrawn.
UPDATES TO TEXT FONTS
* 2.10 includes OpenType variable font builds for the Text fonts
(STIXTwoTextVF-Roman.ttf and STIXTwoTextVF-Italic.ttf). For more
information about variable fonts see:
https://medium.com/variable-fonts/https-medium-com-tiro-introducing-opentype-variable-fonts-12ba6cd2369
The STIX Two Text variable fonts support a weight interpolation axis
between the regular and bold weights, with named instances for
medium and semibold. New static fonts for these instances are
derived from the variable fonts. Development of the variable fonts
was funded by Google Fonts.
* New static weights: Medium and Semibold
* Add anchor mark-to-base and mark-to-mark positioning for Unicode
combining mark characters, to provide positioning for arbitrary
diacritic marks
UPDATES TO MATH FONT
* Added lowercase chancery script set to correspond to new default
uppercase script style (U+1D4B6..1D4CF, U+212F, U+U+210A, U+2134).
Mapped existing roundhand glyphs to Stylistic Set 1 (ss01).
* Added bold chancery script characters (U+1D4D0..U+1D503), also
activated by Stylistic Set 1 (ss01).
* Refined/replaced existing roundhand script style variant glyphs,
presuming that these may be preferred by some users to the new
chancery default.
* Extended set of 'ssty' super- and subscript scaling variants.
* Restored STIX 1 Italic Double Struck mathematical alphabet (PUA
U+E154..E17B, U+E1B4..E1BB).
* Restored STIX 1 Greek Sans Serif Italic mathematical alphabet (PUA
U+E1BE..E1F5).
* Completed U+2300..U+23FF Unicode Miscellaneous Technical by adding
U+2301 ELECTRIC ARROW
U+2303 UP ARROWHEAD
U+2304 DOWN ARROWHEAD
U+2307 WAVY LINE
U+2314 SECTOR
U+231B HOURGLASS
U+2324 UP ARROWHEAD BETWEEN TWO HORIZONTAL BARS
U+2325 OPTION KEY
U+2326 ERASE TO THE RIGHT
U+2327 X IN A RECTANGLE BOX
U+2328 KEYBOARD
U+232B ERASE TO THE LEFT
U+232F SYMMETRY
U+2330 TOTAL RUNOUT
U+2331 DIMENSION ORIGIN
U+2333 SLOPE
U+2334 COUNTERBORE
U+2335 COUNTERSINK
U+233B APL FUNCTIONAL SYMBOL QUAD JOT
U+233C APL FUNCTIONAL SYMBOL QUAD CIRCLE
U+2343 APL FUNCTIONAL SYMBOL QUAD LESS-THAN
U+2344 APL FUNCTIONAL SYMBOL QUAD GREATER-THAN
U+2345 APL FUNCTIONAL SYMBOL LEFTWARDS VANE
U+2346 APL FUNCTIONAL SYMBOL RIGHTWARDS VANE
U+234A APL FUNCTIONAL SYMBOL DOWN TACK UNDERBAR
U+234C APL FUNCTIONAL SYMBOL QUAD DOWN CARET
U+234D APL FUNCTIONAL SYMBOL QUAD DELTA
U+234F APL FUNCTIONAL SYMBOL UPWARDS VANE
U+2351 APL FUNCTIONAL SYMBOL UP TACK OVERBAR
U+2354 APL FUNCTIONAL SYMBOL QUAD DEL
U+2356 APL FUNCTIONAL SYMBOL DOWNWARDS VANE
U+2358 APL FUNCTIONAL SYMBOL QUOTE UNDERBAR
U+235A APL FUNCTIONAL SYMBOL DIAMOND UNDERBAR
U+235B APL FUNCTIONAL SYMBOL JOT UNDERBAR
U+235C APL FUNCTIONAL SYMBOL CIRCLE UNDERBAR
U+2361 APL FUNCTIONAL SYMBOL UP TACK DIAERESIS
U+2362 APL FUNCTIONAL SYMBOL DEL DIAERESIS
U+2367 APL FUNCTIONAL SYMBOL LEFT SHOE STILE
U+2369 APL FUNCTIONAL SYMBOL GREATER-THAN DIAERESIS
U+236E APL FUNCTIONAL SYMBOL SEMICOLON UNDERBAR
U+236F APL FUNCTIONAL SYMBOL QUAD NOT EQUAL
U+2376 APL FUNCTIONAL SYMBOL ALPHA UNDERBAR
U+2379 APL FUNCTIONAL SYMBOL OMEGA UNDERBAR
U+237B NOT CHECK MARK
U+237D SHOULDERED OPEN BOX
U+237E BELL SYMBOL
U+237F VERTICAL LINE WITH MIDDLE DOT
U+2380 INSERTION SYMBOL
U+2381 CONTINUOUS UNDERLINE SYMBOL
U+2382 DISCONTINUOUS UNDERLINE SYMBOL
U+2383 EMPHASIS SYMBOL
U+2384 COMPOSITION SYMBOL
U+2385 WHITE SQUARE WITH CENTRE VERTICAL LINE
U+2386 ENTER SYMBOL
U+2387 ALTERNATIVE KEY SYMBOL
U+2388 HELM SYMBOL
U+2389 CIRCLED HORIZONTAL BAR WITH NOTCH
U+238A CIRCLED TRIANGLE DOWN
U+238B BROKEN CIRCLE WITH NORTHWEST ARROW
U+238C UNDO SYMBOL
U+238D MONOSTABLE SYMBOL
U+238E HYSTERESIS SYMBOL
U+238F OPEN-CIRCUIT-OUTPUT H-TYPE SYMBOL
U+2390 OPEN-CIRCUIT-OUTPUT L-TYPE SYMBOL
U+2391 PASSIVE-PULL-DOWN-OUTPUT SYMBOL
U+2392 PASSIVE-PULL-UP-OUTPUT SYMBOL
U+2396 DECIMAL SEPARATOR KEY SYMBOL
U+2397 PREVIOUS PAGE
U+2398 NEXT PAGE
U+2399 PRINT SCREEN SYMBOL
U+239A CLEAR SCREEN SYMBOL
U+23BA HORIZONTAL SCAN LINE-1
U+23BB HORIZONTAL SCAN LINE-3
U+23BC HORIZONTAL SCAN LINE-7
U+23BD HORIZONTAL SCAN LINE-9
U+23BE DENTISTRY SYMBOL LIGHT VERTICAL AND TOP RIGHT
U+23BF DENTISTRY SYMBOL LIGHT VERTICAL AND BOTTOM RIGHT
U+23C0 DENTISTRY SYMBOL LIGHT VERTICAL WITH CIRCLE
U+23C1 DENTISTRY SYMBOL LIGHT DOWN AND HORIZONTAL WITH CIRCLE
U+23C2 DENTISTRY SYMBOL LIGHT UP AND HORIZONTAL WITH CIRCLE
U+23C3 DENTISTRY SYMBOL LIGHT VERTICAL WITH TRIANGLE
U+23C4 DENTISTRY SYMBOL LIGHT DOWN AND HORIZONTAL WITH TRIANGLE
U+23C5 DENTISTRY SYMBOL LIGHT UP AND HORIZONTAL WITH TRIANGLE
U+23C6 DENTISTRY SYMBOL LIGHT VERTICAL AND WAVE
U+23C7 DENTISTRY SYMBOL LIGHT DOWN AND HORIZONTAL WITH WAVE
U+23C8 DENTISTRY SYMBOL LIGHT UP AND HORIZONTAL WITH WAVE
U+23C9 DENTISTRY SYMBOL LIGHT DOWN AND HORIZONTAL
U+23CA DENTISTRY SYMBOL LIGHT UP AND HORIZONTAL
U+23CB DENTISTRY SYMBOL LIGHT VERTICAL AND TOP LEFT
U+23CC DENTISTRY SYMBOL LIGHT VERTICAL AND BOTTOM LEFT
U+23CD SQUARE FOOT
U+23CF EJECT SYMBOL
U+23D1 METRICAL BREVE
U+23D2 METRICAL LONG OVER SHORT
U+23D3 METRICAL SHORT OVER LONG
U+23D4 METRICAL LONG OVER TWO SHORTS
U+23D5 METRICAL TWO SHORTS OVER LONG
U+23D6 METRICAL TWO SHORTS JOINED
U+23D7 METRICAL TRISEME
U+23D8 METRICAL TETRASEME
U+23D9 METRICAL PENTASEME
U+23DA EARTH GROUND
U+23DB FUSE
U+23E8 DECIMAL EXPONENT SYMBOL
U+23E9 BLACK RIGHT-POINTING DOUBLE TRIANGLE
U+23EA BLACK LEFT-POINTING DOUBLE TRIANGLE
U+23EB BLACK UP-POINTING DOUBLE TRIANGLE
U+23EC BLACK DOWN-POINTING DOUBLE TRIANGLE
U+23ED BLACK RIGHT-POINTING DOUBLE TRIANGLE WITH VERTICAL BAR
U+23EE BLACK LEFT-POINTING DOUBLE TRIANGLE WITH VERTICAL BAR
U+23EF BLACK RIGHT-POINTING TRIANGLE WITH DOUBLE VERTICAL BAR
U+23F0 ALARM CLOCK
U+23F1 STOPWATCH
U+23F2 TIMER CLOCK
U+23F3 HOURGLASS WITH FLOWING SAND
U+23F4 BLACK MEDIUM LEFT-POINTING TRIANGLE
U+23F5 BLACK MEDIUM RIGHT-POINTING TRIANGLE
U+23F6 BLACK MEDIUM UP-POINTING TRIANGLE
U+23F7 BLACK MEDIUM DOWN-POINTING TRIANGLE
U+23F8 DOUBLE VERTICAL BAR
U+23F9 BLACK SQUARE FOR STOP
U+23FA BLACK CIRCLE FOR RECORD
U+23FB POWER SYMBOL
U+23FC POWER ON-OFF SYMBOL
U+23FD POWER ON SYMBOL
U+23FE POWER SLEEP SYMBOL
U+23FF OBSERVER EYE SYMBOL
* Completed U+2600..U+26FF Unicode Miscellaneous Symbols by adding
U+2600 BLACK SUN WITH RAYS
U+2601 CLOUD
U+2602 UMBRELLA
U+2603 SNOWMAN
U+2604 COMET
U+2607 LIGHTNING
U+2608 THUNDERSTORM
U+260A ASCENDING NODE
U+260B DESCENDING NODE
U+260D OPPOSITION
U+260F WHITE TELEPHONE
U+2610 BALLOT BOX
U+2611 BALLOT BOX WITH CHECK
U+2613 SALTIRE
U+2614 UMBRELLA WITH RAIN DROPS
U+2615 HOT BEVERAGE
U+2616 WHITE SHOGI PIECE
U+2617 BLACK SHOGI PIECE
U+2618 SHAMROCK
U+2619 REVERSED ROTATED FLORAL HEART BULLET
U+261A BLACK LEFT POINTING INDEX
U+261B BLACK RIGHT POINTING INDEX
U+261C WHITE LEFT POINTING INDEX
U+261D WHITE UP POINTING INDEX
U+261E WHITE RIGHT POINTING INDEX
U+261F WHITE DOWN POINTING INDEX
U+2620 SKULL AND CROSSBONES
U+2622 RADIOACTIVE SIGN
U+2623 BIOHAZARD SIGN
U+2624 CADUCEUS
U+2625 ANKH
U+2626 ORTHODOX CROSS
U+2627 CHI RHO
U+2628 CROSS OF LORRAINE
U+2629 CROSS OF JERUSALEM
U+262A STAR AND CRESCENT
U+262B FARSI SYMBOL
U+262C ADI SHAKTI
U+262D HAMMER AND SICKLE
U+262E PEACE SYMBOL
U+262F YIN YANG
U+2630 TRIGRAM FOR HEAVEN
U+2631 TRIGRAM FOR LAKE
U+2632 TRIGRAM FOR FIRE
U+2633 TRIGRAM FOR THUNDER
U+2634 TRIGRAM FOR WIND
U+2635 TRIGRAM FOR WATER
U+2636 TRIGRAM FOR MOUNTAIN
U+2637 TRIGRAM FOR EARTH
U+2638 WHEEL OF DHARMA
U+2645 URANUS
U+264A GEMINI
U+264B CANCER
U+264C LEO
U+264D VIRGO
U+264E LIBRA
U+264F SCORPIUS
U+2650 SAGITTARIUS
U+2651 CAPRICORN
U+2652 AQUARIUS
U+2653 PISCES
U+2654 WHITE CHESS KING
U+2655 WHITE CHESS QUEEN
U+2656 WHITE CHESS ROOK
U+2657 WHITE CHESS BISHOP
U+2658 WHITE CHESS KNIGHT
U+2659 WHITE CHESS PAWN
U+265A BLACK CHESS KING
U+265B BLACK CHESS QUEEN
U+265C BLACK CHESS ROOK
U+265D BLACK CHESS BISHOP
U+265E BLACK CHESS KNIGHT
U+265F BLACK CHESS PAWN
U+2668 HOT SPRINGS
U+266C BEAMED SIXTEENTH NOTES
U+2670 WEST SYRIAC CROSS
U+2671 EAST SYRIAC CROSS
U+2672 UNIVERSAL RECYCLING SYMBOL
U+2673 RECYCLING SYMBOL FOR TYPE-1 PLASTICS
U+2674 RECYCLING SYMBOL FOR TYPE-2 PLASTICS
U+2675 RECYCLING SYMBOL FOR TYPE-3 PLASTICS
U+2676 RECYCLING SYMBOL FOR TYPE-4 PLASTICS
U+2677 RECYCLING SYMBOL FOR TYPE-5 PLASTICS
U+2678 RECYCLING SYMBOL FOR TYPE-6 PLASTICS
U+2679 RECYCLING SYMBOL FOR TYPE-7 PLASTICS
U+267A RECYCLING SYMBOL FOR GENERIC MATERIALS
U+267B BLACK UNIVERSAL RECYCLING SYMBOL
U+267C RECYCLED PAPER SYMBOL
U+267D PARTIALLY-RECYCLED PAPER SYMBOL
U+267F WHEELCHAIR SYMBOL
U+268A MONOGRAM FOR YANG
U+268B MONOGRAM FOR YIN
U+268C DIGRAM FOR GREATER YANG
U+268D DIGRAM FOR LESSER YIN
U+268E DIGRAM FOR LESSER YANG
U+268F DIGRAM FOR GREATER YIN
U+2690 WHITE FLAG
U+2691 BLACK FLAG
U+2692 HAMMER AND PICK
U+2693 ANCHOR
U+2694 CROSSED SWORDS
U+2695 STAFF OF AESCULAPIUS
U+2696 SCALES
U+2697 ALEMBIC
U+2698 FLOWER
U+2699 GEAR
U+269A STAFF OF HERMES
U+269B ATOM SYMBOL
U+269C FLEUR-DE-LIS
U+269D OUTLINED WHITE STAR
U+269E THREE LINES CONVERGING RIGHT
U+269F THREE LINES CONVERGING LEFT
U+26A1 HIGH VOLTAGE SIGN
U+26A2 DOUBLED FEMALE SIGN
U+26A3 DOUBLED MALE SIGN
U+26A4 INTERLOCKED FEMALE AND MALE SIGN
U+26A6 MALE WITH STROKE SIGN
U+26A7 MALE WITH STROKE AND MALE AND FEMALE SIGN
U+26A8 VERTICAL MALE WITH STROKE SIGN
U+26A9 HORIZONTAL MALE WITH STROKE SIGN
U+26AD MARRIAGE SYMBOL
U+26AE DIVORCE SYMBOL
U+26AF UNMARRIED PARTNERSHIP SYMBOL
U+26B0 COFFIN
U+26B1 FUNERAL URN
U+26B3 CERES
U+26B4 PALLAS
U+26B5 JUNO
U+26B6 VESTA
U+26B7 CHIRON
U+26B8 BLACK MOON LILITH
U+26B9 SEXTILE
U+26BA SEMISEXTILE
U+26BB QUINCUNX
U+26BC SESQUIQUADRATE
U+26BD SOCCER BALL
U+26BE BASEBALL
U+26BF SQUARED KEY
U+26C0 WHITE DRAUGHTS MAN
U+26C1 WHITE DRAUGHTS KING
U+26C2 BLACK DRAUGHTS MAN
U+26C3 BLACK DRAUGHTS KING
U+26C4 SNOWMAN WITHOUT SNOW
U+26C5 SUN BEHIND CLOUD
U+26C6 RAIN
U+26C7 BLACK SNOWMAN
U+26C8 THUNDER CLOUD AND RAIN
U+26C9 TURNED WHITE SHOGI PIECE
U+26CA TURNED BLACK SHOGI PIECE
U+26CB WHITE DIAMOND IN SQUARE
U+26CC CROSSING LANES
U+26CD DISABLED CAR
U+26CE OPHIUCHUS
U+26CF PICK
U+26D0 CAR SLIDING
U+26D1 HELMET WITH WHITE CROSS
U+26D2 CIRCLED CROSSING LANES
U+26D3 CHAINS
U+26D4 NO ENTRY
U+26D5 ALTERNATE ONE-WAY LEFT WAY TRAFFIC
U+26D6 BLACK TWO-WAY LEFT WAY TRAFFIC
U+26D7 WHITE TWO-WAY LEFT WAY TRAFFIC
U+26D8 BLACK LEFT LANE MERGE
U+26D9 WHITE LEFT LANE MERGE
U+26DA DRIVE SLOW SIGN
U+26DB HEAVY WHITE DOWN-POINTING TRIANGLE
U+26DC LEFT CLOSED ENTRY
U+26DD SQUARED SALTIRE
U+26DE FALLING DIAGONAL IN WHITE CIRCLE IN BLACK SQUARE
U+26DF BLACK TRUCK
U+26E0 RESTRICTED LEFT ENTRY-1
U+26E1 RESTRICTED LEFT ENTRY-2
U+26E3 HEAVY CIRCLE WITH STROKE AND TWO DOTS ABOVE
U+26E4 PENTAGRAM
U+26E5 RIGHT-HANDED INTERLACED PENTAGRAM
U+26E6 LEFT-HANDED INTERLACED PENTAGRAM
U+26E7 INVERTED PENTAGRAM
U+26E8 BLACK CROSS ON SHIELD
U+26E9 SHINTO SHRINE
U+26EA CHURCH
U+26EB CASTLE
U+26EC HISTORIC SITE
U+26ED GEAR WITHOUT HUB
U+26EE GEAR WITH HANDLES
U+26EF MAP SYMBOL FOR LIGHTHOUSE
U+26F0 MOUNTAIN
U+26F1 UMBRELLA ON GROUND
U+26F2 FOUNTAIN
U+26F3 FLAG IN HOLE
U+26F4 FERRY
U+26F5 SAILBOAT
U+26F6 SQUARE FOUR CORNERS
U+26F7 SKIER
U+26F8 ICE SKATE
U+26F9 PERSON WITH BALL
U+26FA TENT
U+26FB JAPANESE BANK SYMBOL
U+26FC HEADSTONE GRAVEYARD SYMBOL
U+26FD FUEL PUMP
U+26FE CUP ON BLACK SQUARE
U+26FF WHITE FLAG WITH HORIZONTAL MIDDLE BLACK STRIPE
* The following characters have been revised. Sometimes noly the
spacing has been adjusted, but most often the outline has also been
modified.
U+003B U+007C U+00AC U+00F7 U+2016 U+204F U+2105 U+210B U+210C
U+2110..U+2113 U+2115 U+2119 U+211B U+211C U+211E U+2126..U+2128
U+212C U+212D U+212F U+2130 U+2131 U+2133 U+2134 U+2145..U+2149
U+2208 U+2209 U+220B U+220C U+2217 U+2227..U+222A U+2282..U+228E
U+22A2..U+22A5 U+22C6 U+22D0 U+22D1 U+22EF U+22F2 U+22F3 U+22F5
U+22F6 U+22F8..U+22FB U+22FD U+2669..U+266B U+266D..U+266F
U+1D400..U1D433 U+1D504..1D537 U+1D541 U+1D558 U+1D55B
U+1D55D..1D562 U+1D565 U+1D566
-----------------------------------
18 June 2019, STIX Two, version 2.0.2
This release fixes a glitch in the OS/2 tables: Bit 8 (WWS) of the
fsSelection field has been set and the OS/2 table version has been
updated to 4. No changes were made to any glyphs or metrics.
-----------------------------------
15 April 2019, STIX Two, version 2.0.1
COMPATIBILITY BETWEEN 2.0.1 AND 2.0.0
There have been numerous improvements to the design of individual
glyphs and to the placement of various accents. Since these don't
affect character metrics, they should not affect the layout of
documents that used v2.0.0 of the fonts.
Users upgrading existing documents from 2.0.0 to 2.0.1 should be aware
of the following potential incompatibilities:
* Character metrics for some glyphs, especially Mathematical
Alphanumeric Symbols and APL functional symbols, have changed.
* Kerning between z and following punctuation has been improved.
* In STIX2Math, Stylistic Set 7 (ss07) no longer includes U+2205
* U+2202 PARTIAL DIFFERENTIAL and U+1D6DB MATHEMATICAL BOLD PARTIAL
DIFFERENTIAL are now upright by default.
See below for further details.
TEXT FONTS
* Added U+2423 OPEN BOX to all faces.
* Added Stylistic Set ss02 to select upright parentheses, brackets,
and braces in Italic and BoldItalic faces.
* Harmonized design of smallcap U+02A9 LATIN SMALL LETTER FENG DIGRAPH
between Regular and Bold faces.
* Improved design of extended Latin and IPA character glyphs.
* Improved kerning of selected character pairs.
* Improved design and placement of U+0307 COMBINING DOT ABOVE and
U+0308 COMBINING DIAERESIS.
MATH FONTS
* The following Mathematical Alphanumeric Symbols have been improved.
Note that in some case this has necessitated changes to the
character metrics.
U+1D504..1D537 Fraktur symbols
U+1D538..1D56B Double-struck symbols
U+1D56C..1D59F Bold Fraktur symbols
U+1D5A0..1D5D3 Sans-serif symbols [SSP]
U+1D5D4..1D607 Sans-serif bold symbols [SSP]
U+1D608..1D63B Sans-serif italic symbols [SSP]
U+1D63C..1D66F Sans-serif bold italic symbols [SSP]
U+1D670..1D6A3 Monospace symbols
U+1D756..1D78F Sans-serif bold Greek
U+1D790..1D7C9 Sans-serif bold italic Greek
U+1D7D8..1D7E1 Double-struck digits
U+1D7E2..1D7EB Sans-serif digits [SSP]
U+1D7EC..1D7F5 Sans-serif bold digits [SSP]
U+1D7F6..1D7FF Monospace digits
Note: The ranges marked "[SSP]" are derived from the Source Sans Pro
fonts, with proportions and weight modified to harmonize with the
STIX design.
* Added support for Unicode Standard Mathematical Standardized Variants.
* Removed variant form of U+2205 EMPTY SET from Stylistic Set 7 to
Character Variant 3. NOTE: For most users, the "variant" form will
be the preferred shape, but the default shape has been left as-is
for backwards compatibility.
* Improved proportions of existing APL symbols and added an additional
16 symbols (see below).
* Corrected glyph for U+1D752 MATHEMATICAL BOLD ITALIC KAPPA SYMBOL.
* Improved positioning of tilde math accent.
* Added dotless variants of U+2148 DOUBLE-STRUCK ITALIC SMALL I and
U_2149 DOUBLE-STRUCK ITALIC SMALL J.
* Made U+2202 PARTIAL DIFFERENTIAL and U+1D6DB MATHEMATICAL BOLD
PARTIAL DIFFERENTIAL upright rather than italic.
* Revised and extended coverage of Enclosed Alphanumeric block
(U+2460-24FF).
* U+20E1 COMBINING LEFT RIGHT ARROW ABOVE is now extensible.
* Corrected vertical placement of U+00B1 PLUS-MINUS SIGN
* The following delimiters now have a full set of 12 growing form
variants.
U+2308 LEFT CEILING
U+2309 RIGHT CEILING
U+230A LEFT FLOOR
U+230B RIGHT FLOOR
U+2772 LIGHT LEFT TORTOISE SHELL BRACKET ORNAMENT
U+2773 LIGHT RIGHT TORTOISE SHELL BRACKET ORNAMENT
U+27E6 LEFT WHITE SQUARE BRACKET
U+27E7 MATHEMATICAL RIGHT WHITE SQUARE BRACKET
U+27E8 MATHEMATICAL LEFT ANGLE BRACKET
U+27E9 MATHEMATICAL RIGHT ANGLE BRACKET
U+27EA MATHEMATICAL LEFT DOUBLE ANGLE BRACKET
U+27EB MATHEMATICAL RIGHT DOUBLE ANGLE BRACKET
U+2983 WHITE CURLY BRACKET
U+2984 RIGHT WHITE CURLY BRACKET
U+2985 LEFT WHITE PARENTHESIS
U+2986 RIGHT WHITE PARENTHESIS
* New characters
General Punctuation
U+2061 FUNCTION APPLICATION
U+2062 INVISIBLE TIMES
U+2063 INVISIBLE SEPARATOR
U+2064 INVISIBLE PLUS
Miscellaneous Technical
U+2338 APL FUNCTIONAL SYMBOL QUAD EQUAL
U+233A APL FUNCTIONAL SYMBOL QUAD DIAMOND
U+233E APL FUNCTIONAL SYMBOL CIRCLE JOT
U+2341 APL FUNCTIONAL SYMBOL QUAD SLASH
U+2342 APL FUNCTIONAL SYMBOL QUAD BACKSLASH
U+2347 APL FUNCTIONAL SYMBOL QUAD LEFTWARDS ARROW
U+2348 APL FUNCTIONAL SYMBOL QUAD RIGHTWARDS ARROW
U+2350 APL FUNCTIONAL SYMBOL QUAD UPWARDS ARROW
U+2357 APL FUNCTIONAL SYMBOL QUAD DOWNWARDS ARROW
U+2360 APL FUNCTIONAL SYMBOL QUAD COLON
U+2364 APL FUNCTIONAL SYMBOL JOT DIAERESIS
U+2365 APL FUNCTIONAL SYMBOL CIRCLE DIAERESIS
U+2366 APL FUNCTIONAL SYMBOL DOWN SHOE STILE
U+236D APL FUNCTIONAL SYMBOL STILE TILDE
U+2378 APL FUNCTIONAL SYMBOL IOTA UNDERBAR
U+2395 APL FUNCTIONAL SYMBOL QUAD
U+23B7 RADICAL SYMBOL BOTTOM
U+23B8 LEFT VERTICAL BOX LINE
U+23B9 RIGHT VERTICAL BOX LINE
Control Pictures
U+2422 BLANK SYMBOL
Enclosed Alphanumerics
U+2469..24B5
U+24EB..24FF
Dingbats
U+2776 DINGBAT NEGATIVE CIRCLED DIGIT ONE
U+2777 DINGBAT NEGATIVE CIRCLED DIGIT TWO
U+2778 DINGBAT NEGATIVE CIRCLED DIGIT THREE
U+2779 DINGBAT NEGATIVE CIRCLED DIGIT FOUR
U+277A DINGBAT NEGATIVE CIRCLED DIGIT FIVE
U+277B DINGBAT NEGATIVE CIRCLED DIGIT SIX
U+277C DINGBAT NEGATIVE CIRCLED DIGIT SEVEN
U+277D DINGBAT NEGATIVE CIRCLED DIGIT EIGHT
U+277E DINGBAT NEGATIVE CIRCLED DIGIT NINE
U+277F DINGBAT NEGATIVE CIRCLED NUMBER TEN
Arabic Mathematical Alphabetic Symbols
U+1EEF0 ARABIC MATHEMATICAL OPERATOR MEEM WITH HAH WITH TATWEEL
U+1EEF1 ARABIC MATHEMATICAL OPERATOR HAH WITH DAL
Note: These two characters were added for compatibility with
the LaTeX unicode-math package. There are no plans to include
further support for Arabic typesetting.
1 December 2016, STIX Two, version 2.0.0
In addition to the overall visual redesign, STIX Two incorporates a
number of significant improvements and additions over version 1 of the
fonts. Special attention has been given to implementing accepted best
practices for OpenType fonts, such as the use of font features to
access variant glyph shapes that were previously only available via
the Unicode Private Use Areas.
The letterspacing and kerning of the text fonts have been
significantly improved.
True small capital variants (Latin, Cyrillic, and Greek), accessible
via the OpenType font feature smcp, have been added for all text
fonts.
Text (lowercase or oldstyle) numerals, available via the font features
pnum and onum, have been added, in addition to natural-spacing
figures.
Alphabetic superscripts and numeric sub- and superscripts, accessible
via the subs and sups font features, have been added.
Fractions are available via the frac feature, as well as numerators
(numr) and denominators (dnom).
The OpenType MATH table has been completely rewritten and extended.
Additions have been made to these Unicode blocks:
Latin-1 Supplement U+0080 - U+00FF
Latin Extended-A U+0100 - U+017F
Latin Extended Additional U+0180 - U+024F
Cyrillic U+0400 - U+04FF
Greek and Coptic U+0370 - U+03FF
IPA blocks U+0250 - U+02AF
BACKWARDS COMPATIBILITY
Because of the scope of the changes, especially to the text fonts,
STIX Two is not a drop-in replacement for earlier versions. While we
understand and sympathize with the difficulties caused by the
incompatibilities we have introduced, we nevertheless felt they were
necessary to address some of the shortcomings of earlier versions of
the fonts and to position us to respond to the needs of modern
publishing.
Earlier versions of the STIX fonts are deprecated and no longer
supported. We urge all users of the STIX fonts to upgrade to the new
versions as soon as possible.
To enable the new and old versions of the fonts to coexist during the
transition phase, the fonts have been renamed as follows:
STIX 1.1.0 STIX 2.0.0
STIX-Regular STIX Two Text
STIX-Italic STIX Two Text Italic
STIX-Bold STIX Two Text Bold
STIX-BoldItalic STIX Two Text Bold Italic
STIX Math Regular STIX Two Math
The four text fonts contain glyphs from Unicode text blocks only. For
example, all characters from the range U+2190 to U+3063 and U+E000 to
U+E368 and all plane 1 characters have been removed from the text
fonts and are now found only in STIX Two Math. Whenever possible,
characters have been removed from the Private Use Area (U+E000-U+F8FF)
and made available via font features instead.
The STIX-General packaging of the fonts is no longer supported.
Acknowledgements
----------------
Tiro Typeworks Ltd.
https://www.tiro.com