Unicode Version 3.2 support was introduced in the Software Express pilot program. In the Solaris Express 8/04 release, Solaris Unicode locales support the Unicode Version 4.0. This feature is included in the Solaris 10 3/05 release.
The Unicode Version 4.0 introduces 1226 new characters over the Unicode Version 3.2. This version also includes both normative changes and informative changes as described in “The Unicode Standard 4.0” (ISBN 0-321-18578-1). The standard can be referenced online at: http://www.unicode.org/standard/standard.html.
The UTF-8 character representation has been also changed to a more secure form since the UTF-8 Corrigendum that was originally published in the Unicode Version 3.1 and later updated at the Unicode Version 3.2.
This feature also implements the more secure UTF-8 character representation and byte sequences in iconv code conversions and OS-level multibyte functions such as the following:
For further information, see the International Language Environments Guide.