Unicode Locale Data v37β available for testing

The beta version of Unicode CLDR version 37 is now available for testing
and review of the LDML spec. The release of v37 is planned for April 22.
If any problems are found in the proposed spec
<https://www.unicode.org/reports/tr35/proposed.html#Modifications>,
please file a ticket
<http://cldr.unicode.org/index/bug-reports#TOC-Filing-a-Ticket>.

Unicode CLDR provides an update to the key building blocks for software
supporting the world's languages. CLDR data is used by all major
software systems <http://cldr.unicode.org/index#TOC-Who-uses-CLDR->
(including mobile phones) for their software internationalization and
localization, adapting software to the conventions of different languages.

v37 is an update release with focus on units and annotations (names and
search keywords for emoji and other symbols).

Expanded locale preferences for units of measurement. The new unit
preference and conversion data allows formatting functions to pick the
right measurement units for the locale and usage, and convert input
measurement into those units. See additional details in Specification
Changes
<http://cldr.unicode.org/index/downloads/cldr-37#TOC-Specification-Changes>.

Emoji 13.0. The emoji annotations (names and search keywords) for the
new Unicode 13.0 emoji are added. The collation sequences are updated
for new Unicode 13.0, and for emoji.

Annotations (names and keywords) expanded to cover more than emoji. This
release includes a small set of Unicode symbols (arrow, math,
punctuation, currency, alphanum, and geometric) with more to be added in
future releases. For example, see v37/annotations/romance.html
<https://unicode.org/cldr/charts/37/annotations/romance.html#%E2%80%93>.

New locales. New languages at Basic coverage: Fulah (Adlam), Maithili,
Manipuri, Santali, Sindhi (Devanagari), Sundanese. New languages at
Modern coverage: Nigerian Pidgin

See Locale Coverage Data
<https://www.unicode.org/repos/cldr-aux/charts/37/supplemental/locale_coverage.html>
for the coverage per locale, for both new and old locales.

Grammatical features added. Grammatical features are added for many
languages, a first step to allowing programmers to format units
according to grammatical context (eg, the dative version of "3 kilometers").

Updates to code sets. In particular, the EU is updated (removing GB).

Updates to the LDML spec. See Modifications
<https://www.unicode.org/reports/tr35/proposed.html#Modifications>.

Updates to the v37 Charts. Especially the Delta Data
<https://www.unicode.org/cldr/charts/37/delta/index.html> charts.

For more details and important notes for smoothly migrating
implementations, see the draft release note Unicode CLDR Version 37
<http://cldr.unicode.org/index/downloads/cldr-37>. For access to the
data, see the GitHub tag:release-37-beta
<https://github.com/unicode-org/cldr/tree/release-37-beta>.

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