chore(metadata): cleanup changelog

zarrs_metadata/CHANGELOG.md

@@ -8,29 +8,27 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased]
 
 ### Added
-- Add `CodecMap` and `CodecName` for codec aliasing and name overriding
+- Add `CodecMap` and `CodecName` for codec `nam` overriding and aliasing
 - Implement `From<T> for MetadataConfiguration` for all codec configuration enums
 - Implement `Copy` for `ZstdCompressionLevel`
-- Add `zfpy` codec metadata (unmerging `zfpy`/`zfp`)
-- Add `MetadataConfigurationSerialize`
+- Add `zfpy` codec metadata (unmerged from `zfp`)
+- Add `MetadataConfigurationSerialize` trait
 
 ### Changed
-- Bump `half` to 2.3.1
-- **Breaking**: Move all codecs into a new `codec` module
-  - `zarrs_metadata` no longer distinguishes Zarr V2/V3 codecs within the `v2`/`v3` modules
-  - Zarr V2/V3 codec aliasing is handled in `zarrs`
-- `{array,codec}_metadata_v2_to_v3` now take a `CodecMap`
-  - `zarrs` has a default codec map initialised in `zarrs::config::global_config().codec_map()`
-- **Breaking**: Remove `write_header` from `zfp` codec configuration (since `zfpy` is now separate)
-- Refactor `FillValueMetadataV3` to support arbitrary fill value metadata for ZEP0009
-  - **Breaking**: `FillValueMetadataV3` has been completely restructured
-  - **Breaking**: All functions in `v3::array::fill_value` have been removed
-  - **Breaking**: `try_as_*()` methods in `FillValueMetadataV3` have been replaced with more extensive `as_*()` methods
-  - **Breaking**: Remove `fill_value::{HexString,FillValueFloat,FillValueFloatStringNonFinite}`
+- **Breaking**: Move all codecs into a new `codec` module rather than the `v2`/`v3` modules
+- **Breaking**: Refactor `FillValueMetadataV3` to support arbitrary fill value metadata (for ZEP0009)
 - **Breaking**: Rename `DataTypeMetadataV3::Unknown` variant to `Extension`
+- **Breaking**: Mark versioned codec metadata as non-exhaustive
+- **Breaking**: `{array,codec}_metadata_v2_to_v3` have an additional `CodecMap` parameter
+  - `zarrs` has a default codec map accessible via `zarrs::config::global_config().codec_map()`
+- **Breaking**: Remove `write_header` from `zfp` codec configuration
+- Bump `half` to 2.3.1
 
 ### Removed
 - **Breaking**: Remove `DataTypeMetadataV3::size[_fixed]()`
+- **Breaking**: Remove `fill_value::{HexString,FillValueFloat,FillValueFloatStringNonFinite}`
+- **Breaking**: Remove all functions in `v3::array::fill_value`
+- **Breaking**: Remove all `FillValueMetadataV3::try_as_*()` methods
 
 ## [0.3.6] - 2025-03-02