[tex-live] new Unicode ICU library release

[Nelson H. F. Beebe]

This announcement just arrived today from the Unicode Consortium:

>> ...
>> 
>> ICU LogoUnicode® ICU 63 has just been released. It updates to CLDR 34
>> <http://cldr.unicode.org/index/downloads/cldr-34> locale data with many
>> additions and corrections, and some new languages. ICU adds an API for
>> number and currency /range/ formatting, and an API for additional
>> Unicode properties and for constructing custom properties. CLDR and ICU
>> include data for testing readiness for the upcoming Japanese calendar era.
>> 
>> ICU is a software library widely used by products and other libraries
>> <http://site.icu-project.org/#TOC-Who-Uses-ICU-> to support the world's
>> languages, implementing both the latest version of the Unicode encoding
>> standard and of the Unicode locale data (CLDR).
>> 
>> For details please see http://site.icu-project.org/download/63.
>> 
>> http://blog.unicode.org/2018/10/icu-63-released.html
>> ...

We need to find out whether we can, or should, use that new libicu for
the upcoming TeX Live 2019 season.


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