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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

Feedback Request for icu4x DisplayNames Experimental Module

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

Status: Open.

#7824 In unicode-org/icu4x;

· sffc opened on Mar 30, 2026

Consider adding zmij feature to fixed_decimal

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

Status: Open.

#7814 In unicode-org/icu4x;

· Manishearth opened on Mar 25, 2026

Investigate zoneinfo64/jiff discrepancies

C-time-zoneComponent: Time ZonesComponent: Time Zones

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

Status: Open.

#7813 In unicode-org/icu4x;

· Manishearth opened on Mar 25, 2026

ICU4X 2.2 release checklist

Status: Open.

#7809 In unicode-org/icu4x;

· Manishearth opened on Mar 25, 2026

·  

2.2 Release ⟨P1⟩

Release cadence for pre-release Unicode versions?

C-unicodeComponent: Props, sets, triesComponent: Props, sets, tries

Status: Open.

#7808 In unicode-org/icu4x;

· clin1234 opened on Mar 25, 2026