Unicode® ICU 59 has just been released! ICU is the main avenue for many software products and libraries to support the world's languages, implementing both the latest version of the Unicode encoding standard and of the Unicode locale data (CLDR).
ICU 59 upgrades to CLDR 31 and to emoji 5.0 data, together with segmentation and bidi updates from Unicode 10 beta. The Java code for number formatting has been completely rewritten for reliability and performance. There is also a new case mapping API for styled text, and a technology preview of enhanced language matching.
There are major changes for ICU4C that will make ICU easier to use but require changes in projects using ICU: C++11, char16_t, UTF-8 source files.
For details please see http://site.icu-project.org/download/59