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Fill in 2.0-beta CHANGELOG.md #5854

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226 changes: 187 additions & 39 deletions CHANGELOG.md
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# Changelog

## icu4x 2.0
## icu4x 2.0-beta1

- Components
- General
- Compiled data updated to CLDR 45 and ICU 75 (unicode-org#4782)
- `icu_calendar`
- Consistently name calendar-specific `Date`/`DateTime` functions that have a calendar argument (https://github.com/unicode-org/icu4x/pull/5692)
- Move all calendar types to `cal` module (https://github.com/unicode-org/icu4x/pull/5701)
- Shorten integer types returned by `day_of_month()`, `week_of_month()`, and `week_of_year()` to `u8` (https://github.com/unicode-org/icu4x/pull/5702)
- `icu_collections`
- `icu_normalizer`
- `icu_datetime`
- `icu_experimental`
- `icu_locale`
- New crate
- Allow `LocaleDirectionality` to wrap a `LocaleExpander` with user-controlled storage (https://github.com/unicode-org/icu4x/pull/5704)
- Allow `LocaleCanonicalizer` to wrap a `LocaleExpander` with user-controlled storage (https://github.com/unicode-org/icu4x/pull/5718)
- Split `canonicalize()` on `Locale` and `LanguageIdentifier` into `canonicalize()` and `canonicalize_utf8()`, and have it return a `Cow` (https://github.com/unicode-org/icu4x/pull/5727)
- `icu_locale_core`
- New crate, renamed from `icu_locid`
- Removed `Ord` and `PartialOrd` impl from `extensions::unicode::Unicode` (https://github.com/unicode-org/icu4x/pull/5617)
- `icu_locid_transform`
- `icu_plurals`
- `icu_properties`
- `icu_segmenter`
- `icu_timezone`
- General
- Constructors updated to take type-safe "preferences" objects instead of locales.
- Preference bags are often built from a locale, but they can also be built manually or merged from other sources.
- Preference bags are taken by value, so most call sites will need to change from `&locale.into()` to `locale.into()` or `(&locale).into()`
- Compiled data updated to CLDR 45 and ICU 75 (unicode-org#4782)
- Compiled data updated to CLDR 46 (unicode-org#5479, unicode-org#5598)
- Fine-tuning error enums; removal of obsolete variants (unicode-org#4959, unicode-org#4638, unicode-org#5019, unicode-org#5041, unicode-org#5146)
- Refactored FromStr and try_from_str functions (unicode-org#4934, unicode-org#5085)
- Deleted various deprecated functions
- Shadow `default` instead of making new function `const_default` (unicode-org#5354)
- Rename marker types (unicode-org#4999)
- Fix take/into function names and conventions (unicode-org#5723)
- `icu`
- Adding `datagen` feature to meta crate (#5047)
- `icu_calendar`
- Restructure icu_calendar public API to put all calendars under `cal` (unicode-org#5701)
- Consistently name calendar-specific `Date`/`DateTime` functions that have a calendar argument (unicode-org#5692)
- Move all calendar types to `cal` module (unicode-org#5701)
- Shorten integer types returned by `day_of_month()`, `week_of_month()`, and `week_of_year()` to `u8` (unicode-org#5702)
- IntoAnyCalendar: new kind() method (unicode-org#4975)
- Fixed various broken assertions (unicode-org#4986)
- Fix Japanese calendar year 0 (unicode-org#5006)
- Add Date, Time, and DateTime from str impls via IXDTF (unicode-org#5260)
- Fix bug by consistently 1-indexing months and days (unicode-org#5726)
- Refactor YearInfo to separate cyclic/Temporal/Formatting eras (unicode-org#5509)
- FormattableMonth -> MonthInfo, and split standard from formatting month codes (unicode-org#5536)
- Remove unix epoch APIs (unicode-org#5748)
- Shorten integer type of day_of_month, week_of_month, week_of_year (unicode-org#5702)
- `icu_collator`
- Introduce a borrowed version of the collator (unicode-org#5513)
- Adapt the collator to Unicode 16 normalization changes (unicode-org#4878)
- Use script fallback in collator (unicode-org#5743)
- `icu_collections`
- `icu_normalizer`
- Introduce borrowed variants of normalizer structs (unicode-org#5413)
- Make the normalizer work with new Unicode 16 normalization behaviors (unicode-org#4860)
- `icu_datetime`
- All-new semantic skeletons. (unicode-org#1317, unicode-org#4945)
- This is a re-write of `DateTimeFormatter` and most of the `icu_datetime` crate. It adds the ability to format specific subsets of fields, conforming with LDML version 46. All call sites of ICU4X 1.x `DateTimeFormatter` will need to be updated. It is recommended to start fresh with the new crate documentation.
- Optimize YearNames storage (unicode-org#5721)
- Drop support for week-of-year, to likely be re-added in a future version or upon request (unicode-org#5569)
- Remove VVV time zone format, to possibly be added back later (unicode-org#5659)
- Fix generic location format for single-tz countries (unicode-org#5657)
- Support localized offsets with seconds (unicode-org#5674)
- Audit datetime format function (unicode-org#5789)
- `icu_decimal`
- Reduce stack size of DecimalSymbolsV1 (unicode-org#5804)
- Split numbering systems out of decimal data (unicode-org#5822, unicode-org#5830)
- `icu_experimental`
- New experimental DurationFormatter component (unicode-org#801)
- Implement `UnitsFormatter` (unicode-org#5000)
- Implement Short Compact Currency Formatter Provider and Populate Associated Data (unicode-org#5361)
- Implement `LongCurrencyFormatter` for Long Currency Formatting (unicode-org#5351)
- Improvements to transliteration (unicode-org#5469, unicode-org#5489, unicode-org#5712)
- Expose `CompactDecimalFormatterOptions` in the compactdecimal module (unicode-org#5770)
- `icu_locale`
- New crate (with parts of `icu_locid` and `icu_locid_transform`)
- Add preferences module (unicode-org#4996, unicode-org#5729)
- Remove `AliasesV1`, `LikelySubtagsV1` (unicode-org#5337)
- Remove `_manual_slice` constructors (unicode-org#5312)
- Use `is_default` instead of `is_empty` or `is_und` for locale-ish types (unicode-org#5359)
- Add script fallback priority; improve language/region fallback priority (unicode-org#5344)
- Allow `LocaleDirectionality` to wrap a `LocaleExpander` with user-controlled storage (unicode-org#5704)
- Allow `LocaleCanonicalizer` to wrap a `LocaleExpander` with user-controlled storage (unicode-org#5718)
- Split `canonicalize()` on `Locale` and `LanguageIdentifier` into `canonicalize()` and `canonicalize_utf8()`, and have it return a `Cow` (unicode-org#5727)
- Remove Ord impl from extensions::unicode::Unicode (unicode-org#5617)
- Locale `canonicalize` -> `normalize` (unicode-org#5766)
- Use `AsRef` in `LocaleDirectionality`'s type parameter (unicode-org#5704)
- Add Expander argument to LocaleCanonicalizer (unicode-org#5718)
- `icu_locale_core`
- New crate, renamed from `icu_locid`
- Removed `Ord` and `PartialOrd` impl from `extensions::unicode::Unicode` (unicode-org#5617)
- Move generic Subtag to subtags; use it in Value (unicode-org#4932, unicode-org#4941)
- Remove AsRef and instead introduce Cow-returning canonicalize methods on locale/langid (unicode-org#5727)
- `icu_plurals`
- Add PluralElements for algorithmic plural selection (unicode-org#5622)
- `icu_properties`
- New properties API (unicode-org#5548)
- Move exemplar chars with new API (unicode-org#5434)
- Split `PropertyNames` (unicode-org#5575)
- Model `BidiAuxiliaryProperties` as an `EnumeratedProperty` (unicode-org#5597)
- Change `Script` property API (unicode-org#5628)
- Rename `UnicodeSetData` to `EmojiSetData` (unicode-org#5627)
- `icu_segmenter`
- Support Unicode 15.1 for line segmenter (unicode-org#5218)
- Use data marker attributes for model selection (unicode-org#4985)
- Fixes to segmentation algorithm (unicode-org#5001)
- Add LocaleData parameter for word/sentence segmenter (unicode-org#5318)
- Add content_locale member to LineBreakOptions (unicode-org#5565)
- `icu_timezone`
- Implement `ixdtf` for `CustomTimeZone` and `CustomZonedDateTime` (unicode-org#5349)
- GMT -> UTC (unicode-org#5512)
- Clean up Windows mapper API (unicode-org#5735)
- Support inference of time zone variants (unicode-org#5540)
- Add `WindowsTimeZoneMapper` and `WindowsZonesToBcp47Map` provider (unicode-org#5524)
- Handle `Z` correctly in IXDTF (unicode-org#5742)
- Make an `IxdtfParser` type (unicode-org#5736)
- Fewer overlapping constructors for `TimeZoneInfo` (unicode-org#5747)
- Private fields for `TimeZoneInfo` (unicode-org#5747)
- Return type for `ZoneOffsetCalculator`
- Remove generic metazone values that match location values (unicode-org#5751)
- Special-case `Z`, `Z[Etc/UTC]` and `Z[Etc/GMT]` in IXDTF parser (unicode-org#5757)
- Deduplicate tz locations against root (unicode-org#5759)
- Make `ZoneVariant` a closed, non-exhaustive enum (unicode-org#5760)
- Replace `CustomTimeZone` with `TimeZoneInfo` (unicode-org#5691)
- Data model and providers
- `icu_datagen`
- `icu_provider`
- `icu_provider_blob`
- `icu_provider_adapters`
- Replace `AnyPayloadProvider` with `FixedProvider<M>`
- `icu_provider_adapters`
- Reworking filter provider (unicode-org#5148)
- Rename AnyPayloadProvider to FixedProvider, make it generic (unicode-org#5502)
- impl ExportableProvider for ForkByErrorProvider and add tutorial (unicode-org#5503)
- `icu_provider_baked`
- New crate, split from `icu_datagen` (unicode-org#5009)
- Reexport baked data dependencies in data crates (unicode-org#5033)
- Changing baked data to use zerotrie (unicode-org#5064)
- `icu_provider_blob`
- Remove Blob schema v1, v2, add v3 (unicode-org#5608)
- `icu_provider`
- Replace `AnyPayloadProvider` with `FixedProvider<M>`
- Added DataMarkerAttributes, new framework for data request specificity (unicode-org#4981)
- Remove BufferProvider trait in favor of DynamicDataProvider (unicode-org#4992)
- Rename data key to data marker [info] (unicode-org#5003)
- Make `DataRequest.payload` non-optional (unicode-org#5037)
- Remove `IterableDataProvider::supports_request` and rename `supported_requests` to `iter_requests` (unicode-org#5089)
- Better modularisation in `icu_provider` (unicode-org#5088)
- Refactor request architecture with DataIdentifier (unicode-org#5103, unicode-org#5293)
- Create `DryDataProvider` for dry-run loading of data (unicode-org#5141)
- Add DataPayload::dynamic_cast with example (unicode-org#5467)
- Add `icu_provider::marker::ErasedMarker` (unicode-org#5590)
- `icu_provider_export`
- New crate, split from `icu_datagen` (unicode-org#5172)
- Removed legacy datagen API (unicode-org#4962, unicode-org#5059)
- Improved datagen APIs (unicode-org#5114, unicode-org#5629)
- Move internal fallback option to baked exporter options (unicode-org#5036)
- Allow using marker names in datagen (unicode-org#5060)
- `icu_provider_fs`
- `icu4x-datagen`
- New crate, split from `icu_datagen` (unicode-org#5011)
- `icu_provider_registry`
- New crate, split from `icu_datagen` (unicode-org#5010, unicode-org#5177)
- `icu_provider_source`
- New crate, split from `icu_datagen` (unicode-org#5016, unicode-org#5173)
- `icu_testdata`
- Deleted obsolete crate (unicode-org#4960)
- FFI:
- All languages
- Complete revamp. "ICU4X" prefixes replaced with namespaces. Add version to ABI.
- Remove `icu_` prefix from `icu_capi` features (unicode-org#5365)
- Replace WASM-demo with Diplomat demo_gen output (unicode-org#5418)
- JS
- C++
- `icu_harfbuzz`
- Utilities
- `calendrical_calculations`:
- `databake`
- `env_preferences`
- Add `env_preferences` crate (unicode-org#5081)
- `fixed_decimal`
- `FloatPrecision::Floating` renamed to `FloatPrecision::RoundTrip` (https://github.com/unicode-org/icu4x/pull/5616)
- `FixedDecimal::concatenated_end()` now returns both `self` and `other` in the error case. (https://github.com/unicode-org/icu4x/pull/5623)
- `FloatPrecision::Floating` renamed to `FloatPrecision::RoundTrip` (unicode-org#5616)
- `FixedDecimal::concatenated_end()` now returns both `self` and `other` in the error case. (unicode-org#5623)
- Simplify FixedDecimal's rounding APIs (unicode-org#5028)
- fix: `pad_end` function does not accept the 0 position (unicode-org#5319)
- Return `Err((self, other))` in FixedDecimal::concatenated_end (unicode-org#5623)
- Rename FloatPrecision::Floating to FloatPrecision::RoundTrip (unicode-org#5616)
- `icu_pattern`
- Changes to bytes constructors (unicode-org#5034, unicode-org#5072)
- Bake, zerovec integration (unicode-org#5030)
- `ixdtf`
- Changed to `&[u8]` parsing (unicode-org#4918)
- `litemap`
- Fix integer overflow for `LiteMap` by using correct `Store` trait method (unicode-org#5113)
- `potential_utf`
- New crate with unvalidated types split from `zerovec` (unicode-org#5364)
- `tinystr`
- Add UTF-16 constructors
- Rename `TinyStrError` to `ParseError` (unicode-org#5405)
- Add TinyAsciiStr::concat (unicode-org#5772)
- `yoke`
- Unsafe review feedback (unicode-org#5046, unicode-org#5104)
- `zerofrom`
- `zerotrie`
- Minor improvement to zerotrie hash function (unicode-org#5106)
- `zerovec`
- This release has multiple changes that affect the bit representation of various types. Do not update to this release if you wish to retain stable data formats.
- Change the `VarZeroVecFormat` values shipped by default to use the same index and length width. This breaks data layout for all `VarZeroVec`s. (https://github.com/unicode-org/icu4x/pull/5594)
- Change the `VarZeroVec` format to not store a superfluous 0 index at the beginning of the index array. This breaks data layout for all `VarZeroVec`s (https://github.com/unicode-org/icu4x/pull/5601)
- Optimize `MultiFieldsULE` to not store a length anymore. This breaks data layout for any `#[make_varule]`-using struct with multiple variable-sized fields. (https://github.com/unicode-org/icu4x/pull/5593)
- Remove `FlexZeroVec` (https://github.com/unicode-org/icu4x/pull/5604)
- This release has multiple changes that affect the bit representation of various types. Do not update to this release if you wish to retain stable data formats.
- Change the `VarZeroVecFormat` values shipped by default to use the same index and length width. This breaks data layout for all `VarZeroVec`s. (unicode-org#5594)
- Change the `VarZeroVec` format to not store a superfluous 0 index at the beginning of the index array. This breaks data layout for all `VarZeroVec`s (unicode-org#5601)
- Optimize `MultiFieldsULE` to not store a length anymore. This breaks data layout for any `#[make_varule]`-using struct with multiple variable-sized fields. (unicode-org#5522, unicode-org#5593)
- Enforce C,packed, not just packed (unicode-org#5049, unicode-org#5143)
- Remove `FlexZeroVec` (unicode-org#5604)
- Add VarTuple and VarTupleULE (unicode-org#5511)
- Add TupleNVarULE (unicode-org#5777)
- Add VarZeroCow (unicode-org#5809)
- Add ZeroVec::as_slice (unicode-org#5621)
- Serde impls for VarULE types (Var tuple types, and make_var) (unicode-org#5802)
- Add VarZeroVecFormat support to VarTuple and make_var (unicode-org#5808)
- Consistently use `bytes` not `byte_slice` (unicode-org#5816)
- Implement `Bake` for VZV types of different formats (unicode-org#5719)
- `writeable`
- Make `Writeable::writeable_cmp_bytes` a free function `writeable::cmp_bytes` (https://github.com/unicode-org/icu4x/pull/5737)
- Add `writeable::to_string_or_borrow` for writing with reference bytes (https://github.com/unicode-org/icu4x/pull/5738)

- Make `Writeable::writeable_cmp_bytes` a free function `writeable::cmp_bytes` (unicode-org#5737)
- Add `writeable::to_string_or_borrow` for writing with reference bytes (unicode-org#5738)
- Add Writeable WithPart helper (unicode-org#5328)
- Make writeable_cmp_bytes a free function (unicode-org#5737)
- Add writeable::write_or_ref (unicode-org#5738)
- Generate to_string concrete fn in impl_display_with_writeable (unicode-org#5827)

## icu4x 1.5.x

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