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Reconsider names for TimeZoneVariant enum

C-time-zoneComponent: Time ZonesComponent: Time Zones

discussDiscuss at a future ICU4X-SC meetingDiscuss at a future ICU4X-SC meeting

Status: Open.

#6701 In unicode-org/icu4x;

· sffc opened on Jun 23, 2025

Get rid of high-level FFI suffixed options structs in 2.0

2.0-breakingChanges that are breaking API changesChanges that are breaking API changes

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

S-smallSize: One afternoon (small bug fix or enhancement)Size: One afternoon (small bug fix or enhancement)

Status: Open.

#3791 In unicode-org/icu4x;

· Manishearth opened on Aug 4, 2023

Consider supporting retrieval of the language preference list from the system

C-localeComponent: Locale identifiers, BCP47Component: Locale identifiers, BCP47

good first issueGood for newcomersGood for newcomers

S-largeSize: A few weeks (larger feature, major refactoring)Size: A few weeks (larger feature, major refactoring)

U-ecma402User: ECMA-402 compatibilityUser: ECMA-402 compatibility

Status: Open.

#3990 In unicode-org/icu4x;

· hsivonen opened on Sep 1, 2023

Breaking changes for the next Yoke major release

C-zerovecComponent: Yoke, ZeroVec, DataBakeComponent: Yoke, ZeroVec, DataBake

discussDiscuss at a future ICU4X-SC meetingDiscuss at a future ICU4X-SC meeting

Status: Open.

#6785 In unicode-org/icu4x;

· Manishearth opened on Jul 30, 2025

Update LocaleFallbacker to work better with Copy DataLocale

C-data-infraComponent: provider, datagen, fallback, adaptersComponent: provider, datagen, fallback, adapters

T-techdebtType: ICU4X code health and tech debtType: ICU4X code health and tech debt

Status: Open.

#6878 In unicode-org/icu4x;

· sffc opened on Aug 19, 2025

Ord on Time may be misleading; consider removing in 3.0

C-calendarComponent: CalendarsComponent: Calendars

discussDiscuss at a future ICU4X-SC meetingDiscuss at a future ICU4X-SC meeting

Status: Open.

#7045 In unicode-org/icu4x;

· sffc opened on Oct 7, 2025

Remove Date::try_new_from_codes in 3.0

C-calendarComponent: CalendarsComponent: Calendars

Status: Open.

#7103 In unicode-org/icu4x;

· sffc opened on Oct 15, 2025

Consider what to do with date+zone semantic skeletons

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

Status: Open.

#7117 In unicode-org/icu4x;

· sffc opened on Oct 17, 2025

Use consistent naming for {Composing,Decomposing}Normalizer FFI

Status: Open (in progress).

unicode-org/icu4xnumber 7183

#7183 In unicode-org/icu4x;

· linusg opened on Oct 28, 2025

Inconsistent locale options for constructors

C-metaComponent: Relating to ICU4X as a wholeComponent: Relating to ICU4X as a whole

Status: Open.

#7261 In unicode-org/icu4x;

· mihnita opened on Dec 1, 2025