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About Unicode Technical Reports About Unicode Technical Reports • Types of Reports: UTR, UTS, UAX • Development Process • Versioning • Superseded or Withdrawn • Data Files Errata Related Links The Unicode Standard Core Specification (latest version) Unicode 4.0.0: •  3.9 Unicode Encoding Forms	Superseded Unicode Standard Annex   The material formerly covered by UAX #19:  UTF-32 has been incorporated into the Core Specification of the Unicode Standard, starting with Version 4.0, and that UAX is thus superseded. The text was incorporated into Unicode 4.0.0 in the following section:            3.9 Unicode Encoding Forms For the most up-to-date version of this information, see the latest version of the Unicode Standard. Archived Version of Superseded UAX #19 https://www.unicode.org/reports/tr19/tr19-9.html