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Old ICU Releases

Latest Release

For the latest release and other recent releases see the main Download page.

Old ICU Releases

The following are available for reference. For current development, please use the latest release. If you already use ICU, then please upgrade regularly, so that you get newer versions of Unicode and locale data, as well as many bug fixes.

Official Releases

If you want to use ICU (as opposed to developing it), it is recommended that you download an official packaged version of the ICU source code. These versions are tested more thoroughly than day-to-day development builds of the system, and they are packaged in zip and tar files for convenient download. Here are several recent releases of ICU that are available:

Release ICU4C ICU4J Major Changes
ICU 4.8 4.8.1.1 4.8.1.1 CLDR 2.0, MessageFormat rewrite, collation script reordering
ICU 4.6 4.6.1 4.6.1.1 CLDR 1.9, Unicode 6.0, UTS #46 support, collation enhancements, alternate number symbols
ICU 4.4 4.4.2 4.4.2.2 CLDR 1.8, Unicode 5.2, compact resource bundle, Java 5 syntax
ICU 4.2 4.2.1 4.2.1.1 CLDR 1.7 update, Number system
ICU 4.0 4.0.1 4.0.1.1 CLDR 1.6 update, Unicode 5.1 update, ICU4J charset
ICU 3.8 3.8.1 3.8.1 CLDR 1.5 update, additional calendars, improved time zone support, improved charset conversion performance.
ICU 3.6 3.6 3.6.1 Unicode 5.0 update, UCA 5.0 update, CLDR 1.4 update, ICU4C charset detection, improved ICU4C break iterator
ICU 3.4 3.4.1 3.4.5 Unicode 4.1 update, CLDR 1.3 update, ICU4J charset detection, ICU4C high performance text access
ICU 3.2 3.2.1 3.2 CLDR 1.2 integration.
       
Prior
Releases:
(mirror
These are the previous releases of ICU.

For reference, old contents available for example from http://web.archive.org/web/20041204030819/http://www-124.ibm.com/icu/

ICU4C

Copied from http://web.archive.org/web/20041204082302/http://oss.software.ibm.com/icu/download/

Release Date Major Changes
ICU 3.2   2004-Nov-22   CLDR 1.2 integration.
ICU 3.0   2004-Jun-18   Unicode 4.0.1 update, regular expressions C API, icuio API is supported and more features and updates.
ICU 2.6.2   2004-Feb-18   Collation bugfixes.
ICU 2.8   2004-Jan-29   Locale ID format update, multiple calendars, historical timezones, 64 bit number formatting, enhanced sorting, converters update and more features and updates.
ICU 2.6.1   2003-Nov-05   Update release with UCA 4.0 support, Thai Royal Dictionary ordering, bugfixes.
ICU 2.6   2003-Jun-13   Unicode 4.0 support, regular expressions Phase 2, enhanced collation, IDNA implemented, multiple calendars, multiple currencies displayed per locale, and many more improvements.
ICU 2.4   2002-Dec-20   Regular expressions Phase 1, improved converter alias handling, break iteration registration, improved collation performance, and many more improvements.
ICU 2.2 patch   2002-Oct-22   Patch and workarounds for known bugs in ICU 2.2
ICU 2.2   2002-Aug-15   Unicode 3.2 support, improved converter alias handling, customizable break iteration, improved data loading, customizable memory management, and more.
ICU 2.1   2002-Apr-16   Improved collation, text transformation, Unicode properties API and thread safety.
ICU 2.0.2   2002-Apr-02   Maintenance release with wchar_t and multithreading fixes
ICU 2.0.1   2002-Feb-27   Maintenance update for library versioning on AIX, improves linkage on HP/UX and others
ICU 2.0   2001-Dec-05   Major release with full support for Unicode 3.1.1 and supplementary characters (surrogates), and many more improvements
ICU 1.8.1   2001-Jun-13   Update release of ICU 1.8 with a new license; significant collation bug fixes and performance improvements; and a bug fix in normalization.
ICU 1.8   2001-Mar-23   Major release with
Improved collation performance and UCA compliance; UTF-32, UTF-7, SCSU, JIS, more IBM codepage converters;
Unicode string case handling and other new Unicode string APIs;
Inter-Indic transliterators; Arabic letter shaping
ICU 1.7   2000-Dec-15   Collation performance; ISO-2022-JP/CN/KR, GB 18030, HZ;
libraries contain version numbers; improved API documentation
ICU 1.6   2000-Aug-18   Major release update, please see the release notes for more details.
ICU 1.5   2000-Jun-06   Major new feature additions,e.g. conversion fallback, complete Bidi support, new ResourceBundle implementation and so on.
ICU 1.4.1.2   2000-May-04   Update to the 1.4.0 release branch, added more robust DLL loading support for DB/2 environments.
ICU 1.4.1.1   2000-Apr-21   Update to the 1.4.0 release branch, added correct newline support for EBCDIC-US.
ICU 1.4.2   2000-Apr-05   Update to the 1.4.1 release, port for OS/390 Unix System Services.
ICU 1.4.1   2000-Mar-21   Update to the 1.4 release with copyright notice changes.
ICU 1.4   2000-Feb-25   Converter Data in single file, Transliteration API, improved platform support.
ICU 1.3.1   1999-Oct-29   Additional Euro code page support, plus porting and bug fixes.
ICU 1.3   1999-Oct-05   Added Unicode BIDI implementation

ICU4J

Copied from http://web.archive.org/web/20041204090123/http://oss.software.ibm.com/icu4j/download/

Release Date Major Changes
ICU 3.2   2004-Nov-22   ULocale support, more data split into subtrees
ICU 3.0   2004-June-18   Unicode 4.0.1 update, RBBI Engine re-written, UResourceBundle class for reading ICU resource bundles
ICU 2.8   2004-Jan-29   Historical timezones, StringPrep and IDNA, ICU Data synchronized with CLDR, other improvements.
ICU 2.6.1   2003-Nov-05   Update release with UCA 4.0 support, Thai Royal Dictionary ordering, bugfixes.
ICU 2.6   2003-Jun-13   Unicode 4.0 support, modularization, service registration, multiple currencies displayed per locale, and many more improvements.
ICU4J 2.4   2002-Dec-20   Performance improvements and new performance test framework.
ICU4J 2.2   2002-Aug-15   Unicode 3.2 support, UCA Collation.
ICU4J 2.1   2002-Apr-24   Support for JDK 1.4, using ICU resource data. Package restructuring.
ICU4J 2.0   2001-Dec-05   Major release with full support for Unicode 3.1.1 and supplementary characters (surrogates);
ICU4J 1.3.1.1   2001-Jul-25   Patch to 1.3.1, added missing test data file Draft-TestSuite.txt
ICU4J 1.3.1   2001-Jun-13   Bug fix release. ICU switches to the X license!
ICU4J 1.3   2001-Mar-23   Update release.
ICU4J 1.2   2000-Dec-26  
ICU4J 1.1   2000-Jun-06  
ICU4J 1.0   2000-Apr-27   Initial release.

ICU4JNI

Copied from http://web.archive.org/web/20041209180416/http://oss.software.ibm.com/icu4j/icu4jni/icu4jni.html

Release Date

November 19, 2004

Description

This is the most recent release of ICU4JNI, version 3.2. This version has been synchronised with ICU4C libraries and is compatible only with ICU 3.2.

File Size Description
icu4jnisrc3.2.zip 327 KB ZIP file containing project release snapshot as of November 19, 2004, including source files.

Older Versions

File Size Description
icu4jnisrc3.0.zip 327 KB ZIP file containing project release snapshot as of Jun 18, 2004, including source files.
icu4jnisrc2.8.zip 333 KB ZIP file containing project release snapshot as of Jan 12, 2004, including source files.
icu4jnisrc2.6.zip 461 KB ZIP file containing project release snapshot as of June 13, 2003, including source files.
icu4jnisrc2.4.zip 461 KB ZIP file containing project release snapshot as of Dec 20, 2002, including source files.
icu4jnisrc2.2.zip 307 KB ZIP file containing project release snapshot as of Aug 16, 2002, including source files.
icu4jnisrc2.1.zip 304 KB ZIP file containing project release snapshot as of April 15, 2002, including source files.
icu4jnisrc2.0.zip 543 KB ZIP file containing project release snapshot as of December 04, 2001, including source files.
icu4jnisrc1.8.1.zip 132 KB ZIP file containing project release snapshot as of June 13, 2001, including source files.
icu4jnisrc1.0.zip 94 KB ZIP file containing project release snapshot as of March 23, 2001, including source files.

Other Downloads

The following are some ICU tools that are available in addition to ICU.

Tool Description
ICU4J Time Zone Update Utility This tool provides a simple way to update installed copies of ICU4J with the latest time zone data. Updates are required when the rules for transitioning between standard time and daylight (summer) time change in any part of the world.
RB Manager This resource bundle manager allows you to edit your program resource bundles more easily through a user-friendly interface. It also allows importing and exporting of resources to multiple formats.
XLIFF2ICUConverter This tool allows you to convert XLIFF files to ICU ResourceBundle format.
 ICU4JNI  ICU4JNI provides Java Native Interface bindings to ICU4C collation and conversion routines.


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