Changes 49.1.1:
* Unicode 6.1: New scripts & blocks; changes to grapheme break & line break
  property values; some characters change from symbol to Po or No; etc.
* CLDR 21.0.1: Changes in segmentation data to match Unicode 6.1; new structures
  for support of Chinese calendar, for context-dependent capitalization, for
  gender of lists of people, for ordinal categories, and for multiple number
  systems per locale; deprecation of "commonlyUsed" element in timezone names;
  removal of "whole-locale" aliases; major cleanups of timezone names,
  delimiter data, abbreviated number data.
* Normalizer2 API additions
* Easier-to-use getInstance() variants; e.g., getNFDInstance()
* Getter for the combining-class value for a code point
* Getter for the raw Decomposition_Mapping
* Pairwise composition
* TimeZone class: (C++) Getter for unknown time zone, (Java) fields for GMT &
  unknown zone
* Support for deprecation of the "commonlyUsed" element for CLDR metazones
* DateTimePatternGenerator can now use separate patterns for skeletons that
  differ only in MMM vs MMMM or EEE vs EEEE,  etc.
* Support for custom DecimalFormatSymbols in RuleBasedNumberFormat
* Format and parse Chinese calendar dates including support for intercalary
  months
* Context Transforms for context-dependent capitalization behavior
* APIs for TimeZoneNames and TimeZoneFormat
* Support for new date format pattern "ZZZZZ" for ISO 8601 zone format
* Options for ambiguous local time resolution in Calendar
* Support for ISO 4217 numeric currency code

(adam)