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jiff, chrono, and time integrations break the documented invariant of UtcOffset?

C-calendarComponent: CalendarsComponent: Calendars

Status: Open.

#7864 In unicode-org/icu4x;

· sffc opened on Apr 9, 2026

·  

2.3 Release ⟨P1⟩

python bindings!

A-ffiArea: FFI, WebAssembly, TranspilationArea: FFI, WebAssembly, Transpilation

C-ffi-infraComponent: Diplomat, horizontal FFIComponent: Diplomat, horizontal FFI

Status: Open.

#7862 In unicode-org/icu4x;

· markjm opened on Apr 9, 2026

Trailing case adjustment doesn't handle Dutch

U-gboardUser: GboardUser: Gboard

Status: Open.

#7861 In unicode-org/icu4x;

· Manishearth opened on Apr 9, 2026

·  

2.3 Release ⟨P1⟩

Implement datetime ordinal formatting

C-datetimeComponent: datetime, calendars, time zonesComponent: datetime, calendars, time zones

Status: Open.

#7860 In unicode-org/icu4x;

· sffc opened on Apr 8, 2026

2.3 Headline: Non-Unit Decimal Formatting

C-numbersComponent: Numbers, units, currenciesComponent: Numbers, units, currencies

S-epicSize: Major project (create smaller child issues)Size: Major project (create smaller child issues)

Status: Open.

#7859 In unicode-org/icu4x;

· sffc opened on Apr 8, 2026

·  

2.3 Release ⟨P1⟩

Test more date constructor patterns in a roundtrip tests

C-calendarComponent: CalendarsComponent: Calendars

Status: Open.

#7853 In unicode-org/icu4x;

· Manishearth opened on Apr 2, 2026

·  

Tech Debt Priority ⟨P2⟩

Potential internal icu_calendar improvements unlocked by better extended year handling

C-calendarComponent: CalendarsComponent: Calendars

Status: Open.

#7852 In unicode-org/icu4x;

· sffc opened on Apr 2, 2026

·  

Backlog ⟨P4⟩

Discussion: Optimal crate architecture for 3rd-party datetime integrations (Chrono, Jiff, Time)

C-datetimeComponent: datetime, calendars, time zonesComponent: datetime, calendars, time zones

Status: Open.

#7845 In unicode-org/icu4x;

· sffc opened on Apr 1, 2026

Implement lengths in DisplayNames

C-dnamesComponent: Language/Region/... Display NamesComponent: Language/Region/... Display Names

Status: Open.

#7833 In unicode-org/icu4x;

· sffc opened on Mar 30, 2026

Implement ZeroTrie dense data optimization in the data providers

C-dnamesComponent: Language/Region/... Display NamesComponent: Language/Region/... Display Names

C-numbersComponent: Numbers, units, currenciesComponent: Numbers, units, currencies

Status: Open.

#7832 In unicode-org/icu4x;

· sffc opened on Mar 30, 2026

Implement core|extended|outlier for display names

C-dnamesComponent: Language/Region/... Display NamesComponent: Language/Region/... Display Names

Status: Open.

#7831 In unicode-org/icu4x;

· sffc opened on Mar 30, 2026

Implement full display names algorithm

C-dnamesComponent: Language/Region/... Display NamesComponent: Language/Region/... Display Names

Status: Open.

#7825 In unicode-org/icu4x;

· sffc opened on Mar 30, 2026