Issues

• Support beaufort in the units converter

  C-numbersT-enhancement
  unicode-org/icu4x#8673 · Filter by author younies opened on Nov 5, 2026

• Add compatible_with to datagen

  discuss
  unicode-org/icu4x#8657 · Filter by author Manishearth opened on Oct 29, 2026

• Add Latin1 line breaking optimization to segmenter

  C-segmentation
  unicode-org/icu4x#8656 · Filter by author aethanyc opened on Oct 29, 2026
  2

• Resolve open questions on DifferenceProvider

  discuss
  unicode-org/icu4x#8655 · Filter by author sffc opened on Oct 29, 2026 · 2.5 Release ⟨P1⟩

• Remove bincode support in 3.0

  API-breaking
  unicode-org/icu4x#8651 · Filter by author Manishearth opened on Oct 28, 2026 · ICU4X 3.0
  2

• Support DifferenceProvider

  C-data-infraU-chromium
  unicode-org/icu4x#8645 · Filter by author Manishearth opened on Oct 27, 2026
  1

• LocaleDirectionality should implement UTN 22

  C-unicode
  unicode-org/icu4x#8627 · Filter by author sffc opened on Oct 20, 2026

• ixdtf parser should have better speculative parsing primitives

  unicode-org/icu4x#8622 · Filter by author Manishearth opened on Oct 19, 2026 · Tech Debt Priority ⟨P2⟩
  

• Release 2.4

  unicode-org/icu4x#8604 · Filter by author robertbastian opened on Oct 15, 2026 · 2.4 Release ⟨P1⟩
  

• Source and notice provenance of adapted fxhash_32 (PR #1504)

  unicode-org/icu4x#8603 · Filter by author markus-li opened on Oct 14, 2026
  

• Thai dictionary segmenter breaks inside syllables

  unicode-org/icu4x#8599 · Filter by author kamthorn opened on Oct 13, 2026
  7

  

• FFI for formatToParts

  discussdiscuss-priorityU-chromium
  unicode-org/icu4x#8590 · Filter by author Manishearth opened on Oct 9, 2026
  20

  

• Thai segmenter breaks before ๆ (MAIYAMOK) and ฯ (PAIYANNOI)

  unicode-org/icu4x#8582 · Filter by author kamthorn opened on Oct 9, 2026
  1

• Policy for LLM usage in communication

  discuss
  unicode-org/icu4x#8578 · Filter by author Manishearth opened on Oct 8, 2026
  4

• North Star: being able to release once a month

  discuss
  unicode-org/icu4x#8577 · Filter by author Manishearth opened on Oct 8, 2026 · Tech Debt Priority ⟨P2⟩
  4

• Style guide and contributor docs: Rust patterns ICU4X uses, what to avoid, and why

  C-metadiscussT-docs-tests
  unicode-org/icu4x#8558 · Filter by author younies opened on Oct 7, 2026
  3

• Documentation by-agents for-agents

  C-metadiscuss
  unicode-org/icu4x#8556 · Filter by author Manishearth opened on Oct 6, 2026
  2

• What are we comfortable fully vibecoding?

  C-metadiscuss
  unicode-org/icu4x#8555 · Filter by author Manishearth opened on Oct 6, 2026
  5

• [zerovec] Support construction of VarZeroVecOwned from pre-allocated Vec<u8>

  unicode-org/icu4x#8546 · Filter by author Gowee opened on Oct 6, 2026
  1

• DateRangeFormatter prints M12 (release) or panics (debug) when the range pattern uses a different month-name width than the ordinary pattern

  C-datetime
  unicode-org/icu4x#8533 · Filter by author ephoton0210 opened on Oct 1, 2026 · 2.x Priority ⟨P2⟩
  15

• Support CalendarPeriod + Zone in FieldSetBuilder and CompositeFieldSet

  C-datetimeneeds-approvalU-ecma402
  unicode-org/icu4x#8531 · Filter by author sffc-bot opened on Oct 1, 2026
  1

• DateTime and ZonedDateTime try_from_str are hard to use

  C-datetimediscuss
  unicode-org/icu4x#8516 · Filter by author sffc opened on Sep 24, 2026

• Need to migrate GitHub Actions off gsutil

  C-processS-small
  unicode-org/icu4x#8505 · Filter by author sffc opened on Sep 17, 2026 · Tech Debt Priority ⟨P2⟩
  1

• icu_casemap does not expose edit mappings

  unicode-org/icu4x#8467 · Filter by author taj-p opened on Sep 9, 2026
  2

• [Feature] Support write_to_parts and define a currency Part in CurrencyFormatter

  unicode-org/icu4x#8455 · Filter by author younies opened on Sep 3, 2026