Log Message:
ibm-plex-otf, ibm-plex-ttf: Update to 6.0.0

Changelog:

v6.0.0 Latest
Changes in 6.0

Note: this is a major release due to the change in postscript naming
structure. Each font now uses abbreviations for Semibold, ExtraLight
and Medium (SmBld, ExtLt, and Medm respectively).
[IBM PLEX MONO V2.3] - 2021-08-13
Added
    U+2500-U259F Box drawing characters and block elements
    referenced in issue 93
    U+2032 (PRIME) U+2033 (DOUBLE PRIME)
    referenced in issue 145
    glyphs /acaron /acaron.alt01 /icaron /ocaron /ucaron
    /udieresismacron /udieresisacute /udieresisgrave /udieresiscaron
    /Acaron /Icaron /Ocaron /Ucaron /Udieresismacron /Udieresisacute
    /Udieresisgrave /Udieresiscaron to support pinyin
    referenced in issue 84
    U+017F (LONG S)
    referenced in issue 158
    U+00A4 (CURRENCY SIGN) U+2215 (DIVISION SLASH)
    referenced in issue 280
Fixed
    FamilyClass value in OS/2 table
    referenced in issue 330
    PostScript BlueScale values
Changed
    more distinct shape for /a and related characters in italic styles
    more distinct shape for /r and related characters
    more distinct shape for /asciitilde
    referenced in issue 322
    replaced commaaccent with cedilla in glyphs /Tcedilla /tcedilla
    referenced in issue 251
    disabled bit 38 (Mathematical Operators) from OS/2 UnicodeRanges
[IBM PLEX SANS JP V1.0] - 2021-06-18
Added
    Support for Japanese (9505 glyphs per font)
[IBM PLEX SANS DEVANAGARI V1.2] - 2021-05-31
Changed
    abbreviated font names used for style mapping (name ID1 + ID2) to
    improve interoperability
[IBM PLEX SANS THAI V1.2] - 2021-05-31
Changed
    abbreviated font names used for style mapping (name ID1 + ID2) to
    improve interoperability
[IBM PLEX SANS THAI LOOPED V1.2] - 2021-05-31
Changed
    abbreviated font names used for style mapping (name ID1 + ID2) to
    improve interoperability
[IBM PLEX MONO V2.2] - 2021-05-28
Changed
    abbreviated font names used for style mapping (name ID1 + ID2) to
    improve interoperability
[IBM PLEX SANS V3.3] - 2021-05-28
Changed
    abbreviated font names used for style mapping (name ID1 + ID2) to
    improve interoperability
[IBM PLEX SERIF V2.7] - 2021-05-28
Changed
    abbreviated font names used for style mapping (name ID1 + ID2) to
    improve interoperability
[IBM PLEX SANS ARABIC V1.2] - 2021-02-14
Added
    Glyphs /alefMaksura_zain-ar.fina.rlig
    /alefMaksura_zain-ar.fina.rlig.short /alefMaksura_jeh-ar.fina.rlig
    /alefMaksura_jeh-ar.fina.rlig.short /alefMaksura_noon-ar.fina.rlig
Fixed
    Mark placement on alternative form of /kaf
    referenced in issue 284
    Multiple spacing issues including /lam_meem ligatures
    PostScript BlueScale values
    FamilyClass value in OS/2 table
Changed
    included logographs are not used by default anymore but can be
    activated through OpenType layout feature "dlig"
    referenced in issue 336
    abbreviated font names used for style mapping (name ID1 + ID2) to
    improve interoperability
Removed
    Glyphs /tteh_reh-ar.fina.short /tteh_zain-ar.fina.short
    /tteh_rreh-ar.fina.short /tteh_jeh-ar.fina.short
[IBM PLEX SANS HEBREW V1.3] - 2020-12-04
Fixed
    placement of dot in glyph /lamed_holam-hb
    placement of dot in glyph /lamed_dagesh_holam-hb
    metrics of /resh-hb
    referenced in issue 343
    metrics of /tav-hb
    PostScript BlueScale values
    FamilyClass value in OS/2 table
Changed
    abbreviated font names used for style mapping (name ID1 + ID2) to improve \ 
interoperability