Editing TrueType (section)

===Linux and other platforms===
The [[FreeType]] project of David Turner has created an independent implementation of the TrueType standard (as well as other font standards in FreeType 2). FreeType is included in many [[Linux]] distributions.

Until May 2010, there were potential patent infringements in FreeType 1 because parts of the TrueType [[Font hinting|hinting]] virtual machine were [[patent]]ed by Apple, a fact not mentioned in the TrueType standards. (Patent holders who contribute to standards published by a major standards body such as [[International Organization for Standardization|ISO]] are required to disclose the scope of their patents, but TrueType was not such a standard.)<ref>{{cite web|url=http://freetype.sourceforge.net/patents.html|title=FreeType and Patents|access-date=23 May 2016}}</ref> FreeType 2 included an optional automatic hinter to avoid the patented technology, but these patents have now expired so FreeType 2.4 now enables these features by default.<ref>{{cite web|title=The TrueType Bytecode Patents Have Expired!|url=https://www.freetype.org/patents.html|website=FreeType & Patents|access-date=20 April 2017}}</ref>