v3.4.2

• Fixed bug whereby OS/2 codepage range bits weren't correctly computed for variable fonts (all unset except fallback bit 0).
  This happened when a designspace contained a <variable-font> element with a 'public.fontInfo' lib key that did not explicitly override openTypeOS2CodePageRanges (#897).

v3.4.1

Fixed typos in USE_SCRIPTS list of ISO script tags for USE-enabled scripts: Bhaiksuki -> "Bhks" (not "Nhks"), N'ko -> "Nkoo" (not "Nko ").

They should now get 'dist' feature instead of 'kern', and 'abvm' and
'blwm' instead of 'mark', like the other USE_SCRIPTS (#896).

v3.4.0

• [postProcessor] fontTools.varLib.cff.convertCFFtoCFF2 is deprecated (#882)
• [outlineCompiler] Warn when building COLRv0 if gid1 is not blank (#886)
• [instantiator] Use designspace.findDefault() the first time designspace.default is checked (#887)
• [markFeatureWriter] Fix ligatures with unnumbered contextual anchors having their mark attachment dropped (#890)
• [markFeatureWriter] Support contextual mark2mark anchors (#895)
• [markFeatureWriter] Drop “ambiguously connected” info message (#892)
• [removeOverlaps] Capture TypeError and ValueError that pathops and booleanOperations might raise (#492)
• [doc] Document lib keys modifying ufo2ft's behavior (#286)

v3.3.1

• [featureWriters] Support insert marker in the middle of a feature block (#873)
• [cursFeatureWriter] Respect direction suffix when setting lookupflag (#876)

v3.3.0

• Rewrite old kern writer to pull in some changes made in the newer one (#870)
• markFeatureWriter: Support contextual anchors (#869)
• markFeatureWriter: Support contextual ligature anchors (#871)

v3.2.8

• [featureWriters] Ensure CursFeatureWriter comes first, before kerning mark feature writers; in some non-HarfBuzz implementations the GPOS lookup order matters (#864).
• [kernFeatureWriter] Ignore zero-valued class-class kerning pairs when generating variable kern feature as they are no-op (#866).
• Take discrete axes into account when checking for feature compatibility across masters (#867).

v3.2.7

• cursFeatureWriter: Remove stray print()

v3.2.6

• kernFeatureWriter: Support sparse masters (#859)
• cursFeatureWriter: Support multiple entry/exit anchor pairs (#863)

v3.2.5

• Removed unnecessary assertions that may sometime trigger an AssertionError while setting a glyph's right margin in dottedCircle filter (#849).

v3.2.4

• Fix variable anchors when DesignSpace source specifies a layer (#842).
• Update the old kernFeatureWriter2.py to be able to output variable FEA for use when compiling features once per VF (#841, #845).