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Amit Patil, … Ramesh Rajbanshi3

12/31/25

Request to Join as a Contributor to the ICU Project

On Tuesday, October 28, 2025 at 12:38:02 AM UTC+4 Elango Cheran wrote: ICU is an open source project,

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Request to Join as a Contributor to the ICU Project

On Tuesday, October 28, 2025 at 12:38:02 AM UTC+4 Elango Cheran wrote: ICU is an open source project,

12/31/25

Mike Samuel, … Elango Cheran9

12/23/25

Explore a cross-PL implementation of ICU

Yep, that URL is the Kalai Github repo. We ditched the single pass strategy early on, so you won'

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Explore a cross-PL implementation of ICU

Yep, that URL is the Kalai Github repo. We ditched the single pass strategy early on, so you won'

12/23/25

12/19/25

upcoming ICU 78.2 maintenance release

Dear friends and users of ICU, We have assembled a small number of C++ bug fixes on the ICU 78

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upcoming ICU 78.2 maintenance release

Dear friends and users of ICU, We have assembled a small number of C++ bug fixes on the ICU 78

12/19/25

Vaishnav Katiyar, … Markus Scherer4

12/18/25

operator+ ambiguity with std::wstring on Windows

On Wed, Dec 17, 2025 at 4:46 PM Robin Leroy <eggr...@unicode.org> wrote: Le mar. 16 déc. 2025

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operator+ ambiguity with std::wstring on Windows

On Wed, Dec 17, 2025 at 4:46 PM Robin Leroy <eggr...@unicode.org> wrote: Le mar. 16 déc. 2025

12/18/25

Vaishnav Katiyar, Markus Scherer2

12/12/25

Clarification on CVE-2025-5222 Fix in ICU

On Fri, Dec 12, 2025 at 4:18 AM 'Vaishnav Katiyar' via icu-support <icu-support@unicode.

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Clarification on CVE-2025-5222 Fix in ICU

On Fri, Dec 12, 2025 at 4:18 AM 'Vaishnav Katiyar' via icu-support <icu-support@unicode.

12/12/25

Christian Maurer, Fredrik Roubert3

12/12/25

ICU 78.1: C4275 in GregorianCalendar and NumberFormat

Hi Frederik, Sorry for the delay! I found this stackoverflow entry: https://stackoverflow.com/

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ICU 78.1: C4275 in GregorianCalendar and NumberFormat

Hi Frederik, Sorry for the delay! I found this stackoverflow entry: https://stackoverflow.com/

12/12/25

Benjamin Gilbert, Fredrik Roubert2

12/10/25

icu4c 78.1: attribute 'dllexport' cannot be applied to a deleted function

On Sat, Dec 6, 2025 at 5:11 AM Benjamin Gilbert <bgil...@backtick.net> wrote: > icu4c 78.1

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icu4c 78.1: attribute 'dllexport' cannot be applied to a deleted function

On Sat, Dec 6, 2025 at 5:11 AM Benjamin Gilbert <bgil...@backtick.net> wrote: > icu4c 78.1

12/10/25

Biedrzycki, Filip, Markus Scherer2

11/25/25

Question about CVE-2025-5222

On Tue, Nov 25, 2025 at 7:46 AM 'Biedrzycki, Filip' via icu-support <icu-support@unicode.

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Question about CVE-2025-5222

On Tue, Nov 25, 2025 at 7:46 AM 'Biedrzycki, Filip' via icu-support <icu-support@unicode.

11/25/25

Christian Maurer, … Steven Loomis5

11/25/25

icupkg: string storage overflow

Hi Markus, the build finished successfully when using #define STRING_STORE_SIZE 300000 I will run

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icupkg: string storage overflow

Hi Markus, the build finished successfully when using #define STRING_STORE_SIZE 300000 I will run

11/25/25

David Ritter, George Rhoten3

11/19/25

ICU 78 genrb failure on Solaris x86

Oh cool. I have applied the patch from the PR and it does address the runtime error I observed on

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ICU 78 genrb failure on Solaris x86

Oh cool. I have applied the patch from the PR and it does address the runtime error I observed on

11/19/25

11/17/25

Can not log into ICU JIRA page

Hello! I'm attempting to submit a few bugs for ICU 78 and I have been unable to log into the

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Can not log into ICU JIRA page

Hello! I'm attempting to submit a few bugs for ICU 78 and I have been unable to log into the

11/17/25

11/2/25

Help Needed: genrb.exe Not Found Due to Misaligned Build Paths

Dear ICU Support Team, I'm building ICU4C version 77.1 on Windows using Visual Studio 2022, and I

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Help Needed: genrb.exe Not Found Due to Misaligned Build Paths

Dear ICU Support Team, I'm building ICU4C version 77.1 on Windows using Visual Studio 2022, and I

11/2/25

10/30/25

ICU 78 Released

Dear friends and users of ICU, We are pleased to announce the release of Unicode® ICU 78. It updates

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ICU 78 Released

Dear friends and users of ICU, We are pleased to announce the release of Unicode® ICU 78. It updates

10/30/25

10/13/25

Confusing stop position on error in ucnv_convertEx()

Hi, For context, I am working on a programming language's runtime system to add support for ICU

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Confusing stop position on error in ucnv_convertEx()

Hi, For context, I am working on a programming language's runtime system to add support for ICU

10/13/25

LN Liberda, Fredrik Roubert2

10/13/25

UnicodeString std::u16string_view APIs preferred by clang

On Sun, Oct 12, 2025 at 1:35 PM 'LN Liberda' via icu-support <icu-s...@unicode.org>

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UnicodeString std::u16string_view APIs preferred by clang

On Sun, Oct 12, 2025 at 1:35 PM 'LN Liberda' via icu-support <icu-s...@unicode.org>

10/13/25

10/13/25

Encountered existing ICU-23016 bug.

Hi, We encountered an existing bug in ICU library. JIRA : https://unicode-org.atlassian.net/browse/

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Encountered existing ICU-23016 bug.

Hi, We encountered an existing bug in ICU library. JIRA : https://unicode-org.atlassian.net/browse/

10/13/25

10/3/25

ICU 78 Release Candidate available

Dear friends and users of ICU, We are pleased to announce the release candidate for Unicode® ICU 78.

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ICU 78 Release Candidate available

Dear friends and users of ICU, We are pleased to announce the release candidate for Unicode® ICU 78.

10/3/25

douglas mennella, Markus Scherer11

10/2/25

C API : Does utrans_openU register system transliterators?

As the subject suggests my questions are pointed towards the C API. What's funny is that it's

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C API : Does utrans_openU register system transliterators?

As the subject suggests my questions are pointed towards the C API. What's funny is that it's

10/2/25

Todd Lang, … Markus Scherer15

9/25/25

Applying tailoring

I was wondering about additional rules with: https://unicode-org.github.io/icu/userguide/collation/

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Applying tailoring

I was wondering about additional rules with: https://unicode-org.github.io/icu/userguide/collation/

9/25/25

9/15/25

Building static libs with /MT

Hello, Are there any clear instructions for how to build ICU core x86/x64 as static libraries linked

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Building static libs with /MT

Hello, Are there any clear instructions for how to build ICU core x86/x64 as static libraries linked

9/15/25

Richmond Mathewson, Markus Scherer2

9/15/25

Devanagari U11B00

On Sun, Sep 14, 2025 at 1:14 AM Richmond Mathewson <richmond...@gmail.com> wrote: There

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Devanagari U11B00

On Sun, Sep 14, 2025 at 1:14 AM Richmond Mathewson <richmond...@gmail.com> wrote: There

9/15/25

Lucas García Mateu

9/11/25

Compiling ICU4C for Unity Android

Greetings, For context I will explain the full extent to our intents with the ICU4C library, since

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Compiling ICU4C for Unity Android

Greetings, For context I will explain the full extent to our intents with the ICU4C library, since

9/11/25

Lucas García Mateu, Markus Scherer2

9/11/25

ICU4C precompiled binaries for Unity Android

On Thu, Sep 11, 2025 at 6:11 AM 'Lucas García Mateu' via icu-support <icu-support@unicode.

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ICU4C precompiled binaries for Unity Android

On Thu, Sep 11, 2025 at 6:11 AM 'Lucas García Mateu' via icu-support <icu-support@unicode.

9/11/25

9/11/25

Re: [icu-support] Test

On Thu, Sep 11, 2025 at 5:05 AM 'Lucas García Mateu' via icu-support <icu-support@unicode.

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Re: [icu-support] Test

On Thu, Sep 11, 2025 at 5:05 AM 'Lucas García Mateu' via icu-support <icu-support@unicode.

9/11/25

Richard Zhao, … Steven R. Loomis3

8/22/25

Licensing Question

Hi, a couple of technical points. - config.guess and config.sub are called when the 'configure

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Licensing Question

Hi, a couple of technical points. - config.guess and config.sub are called when the 'configure

8/22/25

8/20/25

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8/20/25

Suraj Muraleedharan

8/13/25

Request for ICU JIRA Access and Bug Report: Czech Language Pluralization in ICU4J

Hello ICU Support Team, I am a Java developer working with ICU4J in one of my private code bases, and

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Request for ICU JIRA Access and Bug Report: Czech Language Pluralization in ICU4J

Hello ICU Support Team, I am a Java developer working with ICU4J in one of my private code bases, and

8/13/25

Dmytro Makovey, Markus Scherer3

8/8/25

Compiling icu4c with gcc-8.5.0

For posterity: it looks like some of my CFLAGS/LDFLAGS were not agreeing with `gcc-8.5.0`. After I

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Compiling icu4c with gcc-8.5.0

For posterity: it looks like some of my CFLAGS/LDFLAGS were not agreeing with `gcc-8.5.0`. After I

8/8/25

Jan Krämer, Rich Gillam2

8/7/25

Filtered Transliterations in ICU4C, difference between documentation and behaviour

This isn't my area of expertise, but I read the documentation the same way you do. I'd

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Filtered Transliterations in ICU4C, difference between documentation and behaviour

This isn't my area of expertise, but I read the documentation the same way you do. I'd

8/7/25

Jeff Davis, … Markus Scherer6

6/16/25

Uppercasing with U+0345 in non-Greek locales

On Fri, Jun 13, 2025 at 8:45 AM Jeff Davis <pg...@j-davis.com> wrote: So in order to get Greek

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Uppercasing with U+0345 in non-Greek locales

On Fri, Jun 13, 2025 at 8:45 AM Jeff Davis <pg...@j-davis.com> wrote: So in order to get Greek

6/16/25

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