ICU 66
It updates to Unicode 13 & CLDR 36.1. New, extra Q1 releases for low-risk integration of Unicode 13.
ICU 65
It updates to CLDR 36 locale data with many additions and corrections, and some new measurement units. The Java LocaleMatcher API is improved, and ported to C++. For building ICU data, there are new filtering options, and new tracing support for data loading in ICU4C.
Changelog:
2019-04-17: ICU 64.2 released. This maintenance update for ICU 64
includes draft Unicode 12.1 update, CLDR 35.1 locale data and
support for new Japanese era Reiwa.
Changelog:
Common Changes
Unicode 12: 554 new characters, including 4 new scripts and 61 new emoji characters.
CLDR 35
Somali and Javanese data now up to modern level
Cebuano, Hausa, Igbo, and Yoruba data now up to basic level
23 additional measurement units
Many data additions and corrections in many other languages
The following language has been added to ICU: Cebuano
This version of ICU does not yet implement the Indic Grapheme Cluster improvements from CLDR 35.
New Japanese calendar era from 2019: CLDR and ICU include data for testing that can be enabled. (ICU #12973, CLDR #10750)
To enable CLDR new Japanese era placeholder name, set environment variable (and Java system property for ICU4J) ICU_ENABLE_TENTATIVE_ERA=true (This was added in ICU 63).
Support added for Gannen year numbering (using 元 for the first year of an era) in the Japanese locale Japanese-calendar full, long, and medium formats. Gannen year support is also automatically added for other non-numeric formats (those containing other kanji characters such as 年) derived from pattern skeletons unless specifically overridden. (ICU #20441, CLDR #11843, CLDR #11819)
We are planning for an ICU 64.2 update in 2019-April which will add the new Japanese era with its real name.
ICU 64 now uses "rearguard" TZ data. (Recent versions have used "vanguard" data with certain overrides.) (ICU-20398)
ICU data filtering: The ICU4C build accepts an optional filter script that specifies a subset of the data to be built, with whitelists and blacklists for locales and for resource bundle paths. (ICU-10923, design doc)
See this new documentation page: userguide/icu_data/buildtool.md
MessageFormat has new pattern syntax for specifying the style of a date/time argument via a locale-independent skeleton rather than a locale-specific pattern. (ICU-9622)
Date/time skeletons use the same "::" prefix as number skeletons.
Example MessageFormat pattern string: "We close on {closing,date,::MMMMd} at {closing,time,::jm}."
Many formatting APIs can now output a new type of result object which is-a FormattedValue (Java & C++), or convertible to a UFormattedValue (C).
These combine the result strings with easy iteration over FieldPosition metadata.
ICU4C Specific Changes
New C++ class LocaleBuilder for building a Locale from subtags, keywords, and extensions. (ICU-20328)
Parallel to the existing ICU4J ULocale.Builder class.
For C++ MeasureUnit instances, there are now additional factory methods that return units by value, not by pointer-with-ownership. (ICU-20337)
Various Out-Of-Memory (OOM) issues have been fixed. (ticket query)
ICU 63.1:
Common Changes
- CLDR 34
- Segmentation rules and emoji sort order adjusted for Unicode 11
- Somali and Javanese data now up to moderate level (document content)
- Tongan, Konkani, Maori, Dzongkha, Tatar, Kurdish (ku), and Xhosa data now up to basic level
- Many data additions and corrections in many other languages
- The following languages have been added to ICU: Sindhi, Maori, Turkmen, Javanese, Interlingua, Kurdish (ku), Xhosa
- New currency: Venezuela's Bolívar Soberano (VES)
- New Japanese calendar era from 2019: CLDR and ICU include data for testing that can be enabled.
To enable CLDR new Japanese era placeholder name, set environment variable (and Java system property for ICU4J) ICU_ENABLE_TENTATIVE_ERA=true.
- New API for number and currency range formatting
Support for additional Unicode properties: Indic_Positional_Category & Indic_Syllabic_Category and Vertical_Orientation
- New API for code point maps and tries, mapping Unicode code points (U+0000..U+10FFFF) to integer values.
- Java classes CodePointMap, CodePointTrie, MutableCodePointTrie
- C types UCPMap, UCPTrie, UMutableCPTrie
- New API for getting a UnicodeSet per binary property and a code point map per enumerated/int-value property.
- Full conformance with UAX 14 Line Breaking (required BreakIterator feature work).
ICU4C Specific Changes
- C++ Locale class
- Additional functions forLanguageTag()/toLanguageTag(), and functions that are easier and safer to use by using StringPiece and ByteSink rather than raw buffers.
- Move semantics.
- ICU4C: Various Out-Of-Memory (OOM) issues have been fixed. (ticket query)
- The icu-config tool has been deprecated. You can use the --disable-icu-config option to disable icu-config from being installed. Alternately, you can use --enable-icu-config to enable icu-config. In the future, icu-config will be disabled by default
define _ISOC99_SOURCE to mitigate the damage of defining _XOPEN_SOURCE,
just don't define _XOPEN_SOURCE - nothing in the source defines it and
it breaks at least gcc 6.4 on NetBSD-8.0
No PKGREVISION bump as should not affect any building systems
Changelog:
Common Changes
Unicode 11: 684 new characters, including 7 new scripts, Mtavruli Georgian capital letters, 5 new Han characters, and 66 new emoji characters.
CLDR 33.1:
Unicode 11 script metadata, collation, Chinese transliteration.
Chinese collation stroke order updated from Unicode 7 to Unicode 11 after tooling bug fixes.
NumberFormatter
A NumberFormatter can now be constructed from a locale-neutral skeleton string (like a DateFormat) (#8610). This is particularly useful in translated messages where placeholder details should not be translated. MessageFormat recognizes the style field as a number skeleton if it is prefixed with "::", as in "Number of files: {num, number, :: round-integer group-min2}." (#13742)
New "conversion" functions for getting a NumberFormatter from a DecimalFormat, and a Format from a NumberFormatter.
New C API (unicode/unumberformatter.h [permanent API docs link TBD]). (#13597) Currently it supports formatting settings only via a skeleton string.
Several still-draft NumberFormatter methods and helper classes have been modified or renamed; the previous versions remain temporarily (as deprecated) for one release, to help with the transition.
Break Iterator Rules: "Safe" rules are no longer required for correct break iterator operation. For back compatibility, existing rule sets containing safe rules will continue to work, with the safe rules they contain being ignored. The Break Iterator binary data format has been updated to reflect this change.
Line Break: The boundary rules have been updated to reflect the Unicode 11 version of UAX #14. Specifically, the handling of Emoji ZWJ sequences has been improved.
ICU4C Specific Changes
Under-the-hood overhaul of number parsing. See the design doc for a summary of changes; behavior is mostly compatible with previous versions, but there are some known differences.
DecimalFormat now wraps the new NumberFormatter code.
Changes 60.1:
* Unicode 10.0: 8,518 new characters, including four new scripts, 7,494 new Han characters, and 56 new emoji characters.
- Properties newly supported in ICU: Emoji_Component, Regional_Indicator, Prepended_Concatenation_Mark
* CLDR 32:
- Data for several (mostly Asian) new languages, date formatting patterns using colloquial day period formats ("h:mm B" → “1:30 in the afternoon”), and many other data improvements.
- See the CLDR download page for other CLDR features and migration issues in CLDR 32.
* NumberFormatter, a new number formatting API: A long-overdue refresh of number formatting in ICU with a focus on usability, robustness, and performance. The 30+ settings in DecimalFormat are reduced to 8 in NumberFormatter; all NumberFormatter objects are thread-safe and immutable; and the code is efficient in both the client-side (constant locale) and server-side (variable locale) use cases.
- New users are encouraged to use the new API for number formatting. However, preexisting code can continue using the old API, which has been partially made into a wrapper over the new API.
- Documentation: in Java, see com.ibm.icu.number.NumberFormatter, and in C++, see i18n/unicode/numberformatter.h.
* New options for titlecasing:
- Sentence titlecasing and whole-string titlecasing without custom BreakIterator instances.
- The default index adjustment has been changed from "find first cased character" to "find first letter, number, or symbol"; a new option is available for selecting the previous adjustment behavior.
* Smaller data files for BreakIterator.
- Reverse rules no longer used: Easier updates, easier to conform to Unicode Standard.
- Old source rule files continue to work, reverse rules are ignored.
- Rule-based data files: 1.2MB→0.8MB.
ICU4C Specific Changes
* New API for direct-UTF-8 normalization.
- It also optionally records changes, for source-to-result index mapping and tracking of text metadata.
* More convenient case mapping API (StringPiece→ByteSink).
* ICU now handles ill-formed UTF-8 byte sequences as specified in the W3C Encoding Standard.
netbsd&linux do not have it (glibc had it, but removed in 2.26, and
was satisfied by locale.h always, if their release notes is to be believed)
this should cover BSDs other than netbsd, etc.
This was a glibc header, whereas locale.h is a POSIX one.
glibc went ahead and removed it in the new version.
change suggested by Thomas Orgis on tech-pkg but probably not applied
exactly.
* Emoji 5.0 data
* Includes bidi data files from Unicode 10 beta.
* Includes segmentation data files and rules from Unicode 10 beta and CLDR 31.0.1.
* Does not yet include the Emoji_Component property.
* Otherwise ICU 59 continues to use Unicode 9 data.
CLDR 31.0.1
* Including updates for emoji 5.0, for example local names for England, Scotland, and Wales.
* GMT and UTC are no longer unified, and CLDR provides distinct UTC display names, avoiding confusion with standard (winter) time in Britain.
* See the CLDR download page for other CLDR features and migration issues in CLDR v31.
New case mapping API (C++ & Java classes CaseMap) supports styled text.
Common Changes
* CLDR 30.0.3
* Time zone database version 2016j
* ICU SVN repository structure change. See the note on the Source Code Access page for more information.
ICU4C Fixes
* 12815 uspoof_getSkeleton sets backwards-incompatible illegal argument exception
* 12822 digitlist.cpp won't compile on msvc under Node.js
* 12825 uspoof_check goes into an "infinite loop" when U+30FB is in an input string
* 12832 GreekUpper::toUpper skips the final character on a non-terminated UTF-8 string
* 12849 u_strToTitle returns incorrect length if destination is NULL
* 12868 uprv_convertToPosix() Windows bug
* Fix regression with upstream patch,
https://ssl.icu-project.org/trac/ticket/12827
Changelog:
Common Changes
CLDR 30.0.2: For details of the many changes in CLDR, see CLDR 30. Some things to note:
For some combinations of numbering system (arab, arabext, latn) and/or locale (ar, fa, he), there were changes to the bidirectional control characters used with certain symbols (percent, minus, plus), and changes to number patterns (currency and/or percent, including addition of bidirectional control characters in some cases).
New in this release, the bidirectional controls used for such purposes include U+061C ARABIC LETTER MARK (ALM), which requires use of the bidirectional algorithm from Unicode 6.3 or later.
The time separator for Norwegian locales (nb, nn) was changed to be ':' throughout.
Unicode 9.0: Version 9.0 adds exactly 7,500 characters, for a total of 128,172 characters. These additions include six new scripts, 19 symbols for the new 4K TV standard, and 72 new emoji characters.
Draft Emoji 4.0 data
Emoji updates for word & line breaking. (#12664 & Unicode 9 update #12526)
UBiDiTransform/BidiTransform API for convenient transformation of text between different Bidi layouts. (#11679)
MeasureFormat API for measurement unit display names. (#12029)
Most COUNT and LIMIT enum constants have been deprecated. (#12420)
SpoofChecker: Handling of "whole script confusables" has been removed from ICU, in accordance with its removal from UTS #39 Version 9.0.0 and the removal of the corresponding Unicode data file. (#12549)
Greek uppercasing ("el" locale ID) removes most diacritics. (#5456)
More robust locale data loading across ICU implementation code.
Reduced heap memory usage in DateTimePatternGenerator. (#11782)
ICU4C Specific Changes
The layout engine code has been removed; the ParagraphLayout is not deprecated and remains (and must now be built on top of HarfBuzz). See http://userguide.icu-project.org/layoutengine (#12708)
Windows: Supports & requires Visual Studio 2015.
Changelog:
Common Changes
CLDR 29: For details of the many changes in CLDR, see CLDR 29.
Grapheme/word/line breaking for emoji sequences, based on Unicode 9 proposed rules. See the Unicode emoji break proposal and the Unicode Emoji Technical Report Proposed Update describing the new emoji sequences. (#12081).
Four new Unicode emoji properties (#11802).
DateFormat day period formatting of "noon", "at night", etc. via new pattern characters b & B, and DateTimePatternGenerator support of C for selecting the customary form (#11872).
Except: Formatting of "0:00 midnight" has been disabled because it is confusing except for at the end of an interval.
RelativeDateTimeFormatter: Simpler formatting API (#12072).
More robust CLDR data loading for MeasureFormat (#11986, #12030), RelativeDateTimeFormatter (#12018), and DateIntervalFormat/DateIntervalInfo (#12013).
New simple & fast SimpleFormatter class for a trivial subset of MessageFormat as used in CLDR data, e.g., "{0} {1}" (#10896).
ICU4C Specific Changes
C API support for RelativeDateTimeFormatter (#12072).
Clang annotations for intended switch case fallthroughs, can now compile with -Wimplicit-fallthrough (#12166).
Internal header files can be compiled by themselves, for simpler alternative build scripts (#12141).
Changelog:
Release Overview
The features for this release include support of CLDR 28 and Unicode 8.0.
For more details, including migration issues, see below.
Common Changes
CLDR 28: For details of the many changes in CLDR, see CLDR 28.
Unicode data updated to Unicode 8.0: 41 new emoji characters, 5,771 new ideographs for Chinese/Japanese/Korean, 6 new scripts, improved character properties data, etc.
ICU data size reduced by about 7.2% (1.8MB) via sharing string values across resource bundles. [#11537]
DateIntervalFormat now handles intervals with seconds, and sets FieldPosition more consistently. [#11706, #11726]
DateFormat::createInstanceForSkeleton() caches DateFormat patterns rather than DateTimePatternGenerator instances, for better performance (for cache hits) and lower heap memory consumption. [#11780]
StringSearch (based on collation) defaults to matches on normalization boundaries rather than grapheme cluster boundaries, which yields more matches on Indic text. [#11750]
RuleBasedNumberFormat (spelled-out numbers) now handles rounding (Java only), infinity, NaN. [#11653, #11760, #8223]
Most of the old Normalizer/unorm.h had been replaced by (and reimplemented via) Normalizer2, and is now deprecated. [#7303]
COLON has been withdrawn as a date pattern character corresponding to the date field [UDAT_]TIME_SEPARATOR_FIELD; there is currently no pattern character corresponding to that field. [#11773]
Support for locale key "cf" to specify currency format style, and interaction with NumberFormat values for UNumberFormatStyle: [#11787]
For NumberFormat style UNUM_CURRENCY / CURRENCYSTYLE, the default is "standard" currency style (typically using minus sign for negative numbers), but the new locale key "cf" may be used with values "standard" or "account" to specify currency format style ("account" indicates accounting style, often using parentheses for negative numbers).
For other NumberFormat styles, the locale key "cf" is ignored (they override the locale preference):
UNUM_CURRENCY_ISO / ISOCURRENCYSTYLE
UNUM_CURRENCY_PLURAL / PLURALCURRENCYSTYLE
UNUM_CURRENCY_ACCOUNTING / ACCOUNTINGCURRENCYSTYLE
UNUM_CASH_CURRENCY / CASHCURRENCYSTYLE
A new NumberFormat style is availble to explicitly specify standard style, ignoring the the locale key "cf"
UNUM_CURRENCY_STANDARD / STANDARDCURRENCYSTYLE
ICU4C Specific Changes
C API support for CompactDecimalFormat via UNumberFormatStyle additions: UNUM_DECIMAL_COMPACT_SHORT, UNUM_DECIMAL_COMPACT_LONG [#11693]
Larger UnicodeString object stores more characters inside the object without heap allocation; the UnicodeString object size is now build-time-configurable. [#11551]
On 64-bit machines, increase from object size 40 bytes with 15 internal UChars to a new default of 64 bytes with 27 UChars.
Some C++ classes now have swap() and moveFrom() methods, and support C++11 move semantics on compilers that support them. [#10086]
UnicodeString, LocalPointer, LocalArray
DecimalFormat code refactored to fix bugs, improve maintainability, and improve performance. [#10458]
New FilteredBreakIterator suppresses certain segment boundaries. For example, it can suppress the sentence boundary in the middle of "Mr. Smith". [#11248]
The internal, shared cache has been changed from unbounded to bounded. [#11767]
For [U]BreakIterator with type UBRK_SENTENCE, the locale key "ss" can now be used with value "standard" to specify that standard sentence break suppression data should be used, or with value "none" to indicate that no break suppression data should be used (the default). [#11770]
Collator: first-time startup time improved 20% due to precalculated unsafe-backward table [#11886]
A number of memory leaks and buffer overruns have been fixed based on static code analysis, mostly in data build tools
The features for this release include support of CLDR 27 (with a major cleanup of region locales, among many other improvements), formatting for scientific notation ("1.2 × 10³"), an update to Unicode 7.0 data for spoof-checking, narrow AM/PM markers ("7:45p"), and various performance enhancements. For C/C++, there are new methods for flexible dates ("Nov 10", or "Sept 2015"), named capture groups for regular expressions, formatting of compound units ("3.5 meters per second"), new C wrappers, and independent timezone resource loading. ICU4J has been improved and tested for using ICU4C data and for running on Android.
Unicode 6.3: New bidi control codes, new Bidi_Class property values, two new bidi "bracket" properties; for other property value changes see the UAX 44 summary.
The bidi algorithm implementation has also been updated to support the new properties and to match the updated algorithm in the Unicode 6.3 version of UAX 9.
Note: ICU 52 still uses collation root data based on Unicode Collation Algorithm 6.2 (UCA 6.2). (However, ICU 52 does use CLDR 24 collation tailoring data.)
CLDR 24: Improved coverage for top 70+ languages, fractional plural rules and forms, many new measurement units, major simplification of collation rule syntax, preliminary version of European Ordering Rules, new relative fields such as “last Sunday” and “now”, and much more.
Time zone data: 2013g.
Support new variants of Islamic calendar:
"islamic-umalqura": Umm al-Qura.
"islamic-tbla": Tabular (fixed intercalary years), with astronomical epoch.
Made Calendar getDayOfWeekType behave as documented.
New API for converting between Windows time zone ID and IANA tz database ID.
Technology Preview: New API for more granular control of DateFormat parse leniency.
DateTimePatternGenerator:
Support recently-added time zone pattern characters O, X, x and updated support for V, Z.
Support newly-defined skeleton character ‘J’ to generate preferred hour cycle without any day period indicator (such as AM/PM for h).
Implement support for plurals that depend on displayed fractional values.
MessageFormat and currency formatting etc. select appropriate plural forms for values with decimal digits (after the decimal point).
Segmentation:
Add dictionary-based word & line break for Lao.
As "DSO_LIBDIR" is now always set (and must be always set because of all
the changes that refer to it) we cannot use it to check for the Cygwin
case anymore. Instead check whether "OPSYS" is (not) equal to "Cygwin".
