Unicode® ICU 75 updates to CLDR 45 (beta blog) locale data with new locales and various additions and corrections. C++ code now requires C++17 and is being made more robust.

The CLDR MessageFormat 2.0 specification is now in technology preview, together with a corresponding update of the ICU4J (Java) tech preview and a new ICU4C (C++) tech preview.

For details, please see https://icu.unicode.org/download/75.

We are pleased to announce the release candidate for Unicode® ICU 75. It updates to CLDR 45 (alpha blog) locale data with new locales and various additions and corrections. C++ code now requires C++17 and is being made more robust.

The CLDR MessageFormat 2.0 specification is now in technology preview, together with a corresponding
update of the ICU4J (Java) tech preview and a new ICU4C (C++) tech preview.

For details, please see https://icu.unicode.org/download/75.

Please test this release candidate on your platforms and report bugs and regressions by Monday, 2024-apr-15, via the icu-support mailing list, and/or please find/submit error reports.

Please do not use this release candidate in production.

The preliminary API reference documents are published on unicode-org.github.io/icu-docs/ – follow the “Dev” links there.

ICU 74.2 updates to CLDR 44.1 locale data. These are maintenance releases for ICU 74 and CLDR 44, with limited sets of bug fixes and no API or structural changes.

• The CLDR bug fix relevant for ICU is for some formatting patterns that erroneously had two adjacent space characters. These are coalesced into one. (CLDR-17233)
• Important: DateFormat.getInstanceForSkeleton() and the DateTimePatternGenerator sometimes used the wrong patterns because they failed to use/inherit certain data (ICU-22575 — CLDR 44 had removed some redundant data that ICU relied on)

For details, please see https://icu.unicode.org/download/74.

Unicode® ICU 74 updates to Unicode 15.1, and to CLDR 44 locale data with various additions and corrections.

ICU 74 and CLDR 44 are major releases, including a new version of Unicode and major locale data improvements. They subsume the changes for the ICU 73.2 and CLDR 43.1 maintenance releases.

Unicode 15.1 adds source code security mechanisms, improves line breaking for southeast Asian scripts, and adds important CJK unified ideographs.

CLDR 44 has added or improved data for a number of languages that have been newly added to ICU, and has improved measurement unit handling, conversion, and formatting.

ICU 74 implements these improvements, adds new C APIs for locale handling, adds a plug-in API for word segmentation, and switches the Java build system to Maven.

For details, please see https://icu.unicode.org/download/74.

We are pleased to announce the release candidate for Unicode® ICU 74. It updates to Unicode 15.1, and to CLDR 44 locale data with various additions and corrections.

ICU 74 and CLDR 44 are major releases, including a new version of Unicode and major locale data improvements. They subsume the changes for the ICU 73.2 and CLDR 43.1 maintenance releases.

For details, please see https://icu.unicode.org/download/74.

Please test this release candidate on your platforms and report bugs and regressions by Wednesday, 2023-oct-26, via the icu-support mailing list, and/or please find/submit error reports.

Please do not use this release candidate in production.

The preliminary API reference documents are published on unicode-org.github.io/icu-docs/ – follow the “Dev” links there.

Note: The prebuilt WinARM64 binaries below should be considered alpha/experimental.

(ICU locale data was generated from the CLDR tag: https://github.com/unicode-org/cldr/releases/tag/release-44-beta2)

Tagged through the following for use by CLDR:

• 7a03734 ICU-22324 Mavenization, building the CLDR utilities
• c670bbd ICU-22420 GB18030 change 3 mappings for GBK/web compat
• 87fe057 ICU-22324 Mavenization, add -SNAPSHOT back to the maven version
  ...
• 99026f0 ICU-22325 BRS74RC: Update version number to 74.1 #2613
  ...
• c468984 ICU-22463 Fix the conversion from gasoline-equivalent units to kilograms-per-meter-squared-per-second #2616
• 8c4af50 ICU-22324 Mavenization, minimize the places that need a version
  ...
• 501fe1b ICU-22324 Mavenization, preparing for maven central deployment
  ...
• f14b24a ICU-22324 Allow single Maven cache creation and multiple read-only usage
  ...
• 2ca7c49 ICU-22464 Fix Java DateFormatSymbols to copy abbreviated day period names to the other sizes when appropriate.

Tagged through the following for use by CLDR:

• 2df1ab7 ICU-21289 Switch to using CharString for calling uloc_canonicalize().
  ...
• c1475f4 ICU-22516 Return error while the style is invalid
  ...
• c468984 ICU-22463 Fix the conversion from gasoline-equivalent units to kilograms-per-meter-squared-per-second
• 8c4af50 ICU-22324 Mavenization, minimize the places that need a version
• 6e0468d ICU-22498 Write directly to sink (instead of into legacy buffers).
  ...
• 501fe1b ICU-22324 Mavenization, preparing for maven central deployment
  ...
• f14b24a ICU-22324 Allow single Maven cache creation and multiple read-only usage
  ...
• 2ca7c49 ICU-22464 Fix Java DateFormatSymbols to copy abbreviated day period names to the other sizes when appropriate.
• 87d606c ICU-22509 Fix the RelativeDateFormat to reject unsupported dateStyle

Tagged through the following for use by CLDR:

• bb73529 ICU-22325 CLDR 44 alpha2 integration to ICU part three, source files changes
• 6b08bb6 ICU-22325 CLDR 44 alpha2 integration to ICU part two, source files generated or copied from CLDR
• a5589e9 ICU-22325 CLDR 44 alpha2 integration to ICU part one, binary and binary source files
• 6d178fd ICU-22325 Update ICU4C API Change Reports frontload
• 68a61da ICU-22497 Fix buffer-overflow READ for toLanguateTag
• 35645ab ICU-22494 Avoid adding empty or duplicate variants during locale canoncalization.
• 687feb1 ICU-22478 Fix log spew in PersonNameConsistencyTest.

Tagged through the following for use by CLDR:

• fb0f362 ICU-22324 Small fixes for script moving folders to maven structure
• 2270c17 ICU-22325 CLDR release-44-alpha1 to main:
• 5d6d197 ICU-22466 Fix incorrect memory read while the locale is bogus
• 667ee72 ICU-22457 count() of getUnicodeKeywords is incorrect
• 52177cc ICU-22364 Modify ulocimp_getRegionForSupplementalData() to ignore the subdivision code...
• 248b1c2 ICU-22309 update to LICENSE v3, Readme.md, CONTRIBUTING.md
• 1fc560c ICU-22465 Change .s to .data() for replacing TinyString with CharString.
• a7a2fdb ICU-22324 Script moving folders to maven structure
• ffc449d ICU-20777 Merge the likelySubtags implemention
• 27181e3 ICU-22435 Add C API for Locale #2531
• 81a6edb ICU-22404 Unicode 15.1 data 20230811 plus UTS46 fix