PRI349 imageProposed Update Version 5.0 of UTS #51, Unicode Emoji <http://www.unicode.org/reports/tr51/tr51-11.html> is available for public review and feedback. This new version is slated to be a Unicode Technical Standard, and thus adds a conformance section and related definitions. This new version adds a mechanism to support regional flags, such as Scotland or California, although the choice of which of these flags to support is left to vendors beyond a recommended set of three. UTS #51 will have a separate data file for the valid emoji presentation sequences. It also reflects some changes to the recommended sort order that will be released soon in CLDR v31 <http://cldr.unicode.org/index/downloads/cldr-31>. For more details, see the Modifications section of the document. http://blog.unicode.org/2017/03/uts-51-unicode-emoji-proposed-update.html