# Changelog
All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
## [Unreleased]
## [0.15.0](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.14.2...optionable_codegen-v0.15.0) - 2026-06-18
### Added
- [**breaking**] split kube feature the internal codegen create into kube3 and kube4
### Fixed
- kube3/kube4 feature split fixes
- add special case handling for k8s rust field names
- dependency updates
### Other
- semver version adjustments
- release
## [0.14.3](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.14.2...optionable_codegen-v0.14.3) - 2026-06-17
### Fixed
- add special case handling for k8s rust field names
- dependency updates
## [0.14.2](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.14.1...optionable_codegen-v0.14.2) - 2026-05-04
### Fixed
- skip required fields during serializing if they are `Option::None`
## [0.14.1](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.14.0...optionable_codegen-v0.14.1) - 2026-05-03
### Added
- granular deepmerge handling
- merge behaviour `ignore`
- working deepmerge and mapkeyseq derives
- codegen for `MapKeysEq`
- add deepmerge to optionable_derive
- deepmerge implementation derive
### Fixed
- adjust OptionableConvert::merge implementation for k8s-openapi::List
- dependency updates
- k8s-openapi list deepmerge
- handle PersistenVolumeSpec.claim_ref special case for deepmerge codegen
- codegen enum handlung for k8s-openapi deepmerge
- regenerate k8s-openapi (fixed merge beaviors)
- handle references for kubernetes openapi spec
- kubernetes openapi parsing always evaluate schema extensions (for ref and embedded schemas)
- k8s openapi reference resolution
- handle option wrapped types for deepmerge derive
- add `ignore` merge behaviour for k8s-openapi api envelope phantomdata helper
- tests + deepmerge derive bugfixes
- working tests for plain deepmerge + bugfixes
### Other
- generalize k8s_openapi package name in codegen
- more deepmerge special cases
- no deepmerge impl for Patch
- also derive deepmerge for k8s-openapi enums
- merge behavior special case handling
- hyphen handling for k8s openapi matching to k8s_openapi (rust) paths
- codegen fixes
- k8s openapi parsing fixes (reference handling)
- rm openapi-utils (have to implement lookup ourselves)
- use openapi-utils to follow dereferenced references in k8s-openapi codegen
- openapi-utils for k8s-openapi codegen
- adjust k8s openapi parsing
- codegen
- codegen
- codegen
- adjust k8s-openapi codegen to derive DeepMerge and MapsKeysEq for optiones types
- docs
- add visitor to support calling other derives like DeepMerge or MapKeysEq in codegen binaries
- test
- clippy
- split up visitors
- enum deepmerge todo fixes
- adjusted todo
- deepmerge enum support
- deepnum merge enum impl
- first test for deepmerge and very very basic first working output
- simplify deepmerge visitor result type
- start implementing DeepMerge codegen using syn visitor
- deepmerge derive macro
## [0.14.0](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.13.2...optionable_codegen-v0.14.0) - 2026-04-14
### Added
- generate atomic merge attribute for k8s map types where specified by upstream openapi spec
- derive macro for `OptionableMapKeysEq` (and rename of that trait)
- add codegen support for other merge types (todo: tests, derive impl, docs)
- [**breaking**] k8s codegen keeps fields required that are key fields for lists with map type merge behavior
- preserve doc comments for generated optioned types
- [**breaking**] use self-resolving container types for derive macro output
- [**breaking**] self-resolve fulls self-resolving container-types for derive macro
### Fixed
- missing self_resolving condition for simplified merge
- deref modifier for merge of already optioned types
- codegen for OptionableConvert::merge for already Option wrapped types
- correct option handling for adjusted merge logic
- malformed output for multiple merge_map_key
- move `map_key` derive logic into `Optionable` derive macro
- tests for custom merge behaviour + bugfixes
- error handling for unsupported merge type setting combinations
### Other
- clippy
- determine map type when parsing upstream k8s openapi spec
- rename merge options
- typo
- test adjustments
- update codegen tests
- restore codegen optimization for plain self-resolving types
- simplify merge codegen implementation
- todo
- error msg for unsupported merge behaviors
- refactor merge behaviour unsupported case handling
- set merge type for k8s openapi
- adjust k8s openapi codegen to add merge type where specified by upstream openapi spec
- adjust k8s-openapi codegen to mark merge map keys as such
- rename merge field attribute
- adjust test
- adjust codegen to support various merge_type behaviors (logic still missing)
- handle rust field mapping for parsed k8s openapi schema identifiers
- pass output path to codegen visitors, simplify k8s openapi spec parsing
- add kubernetes openapi parsing to k8s-openapi codegen (not utilized yet)
## [0.13.2](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.13.1...optionable_codegen-v0.13.2) - 2026-03-19
### Other
- cargo fmt
- clippy
- fmt
- split codegen derive function up a bit
- split codegen tests into individual functions for better failure reporting
## [0.13.1](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.13.0...optionable_codegen-v0.13.1) - 2026-03-08
### Fixed
- dependency updates
## [0.13.0](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.12.1...optionable_codegen-v0.13.0) - 2026-01-14
### Added
- [**breaking**] drop k8s-openapi v0.26 support
- use kube3 as feature and package path identifier for the kube v3 support
- [**breaking**] rework kube derive tooling
### Fixed
- dependency updates
- [**breaking**] remove k8s-openapi version from package path
## [0.12.1](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.12.0...optionable_codegen-v0.12.1) - 2026-01-13
### Other
- simplify codegen
- simplify codegen
## [0.12.0](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.11.1...optionable_codegen-v0.12.0) - 2025-12-24
### Fixed
- [**breaking**] use same attribute style for option_wrap as for other configs
## [0.11.1](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.11.0...optionable_codegen-v0.11.1) - 2025-12-23
### Added
- add type-level `option-wrap` derive argument
## [0.10.2](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.10.1...optionable_codegen-v0.10.2) - 2025-12-17
### Fixed
- avoid a where-clause clone during codegen
### Other
- simplify where-clause codegen
## [0.10.1](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.10.0...optionable_codegen-v0.10.1) - 2025-12-15
### Fixed
- move `api_version` and `kind` fields for kubernetes resource types to the front
## [0.10.0](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.9.4...optionable_codegen-v0.10.0) - 2025-12-14
### Added
- [**breaking**] rework k8s api envelope serialization/deserialization
### Other
- document crd roundtrip issue
## [0.9.4](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.9.3...optionable_codegen-v0.9.4) - 2025-12-10
### Added
- support deserialization for QuantityAc from int following upstream
### Fixed
- dependency updates
### Other
- comment regarding crd stackoverflow
## [0.9.3](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.9.2...optionable_codegen-v0.9.3) - 2025-12-09
### Fixed
- k8s-openapi various serialization/deserialization special case handling fixes
## [0.9.2](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.9.1...optionable_codegen-v0.9.2) - 2025-12-08
### Fixed
- special case serde fix for $ref fields
## [0.9.1](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.9.0...optionable_codegen-v0.9.1) - 2025-12-04
### Other
- refactor codegen
- simplify codegen code
## [0.9.0](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.8.1...optionable_codegen-v0.9.0) - 2025-12-02
### Added
- [**breaking**] unseal `OptionedConvert`, drop blanket implementation, add `optioned_type` derive field attribute
### Fixed
- OptionableConvert for k8s-openapi watch event broke compilation
- regenerate k8s-openapi generated code
## [0.8.1](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.8.0...optionable_codegen-v0.8.1) - 2025-12-01
### Other
- set Cargo edition, rust version, license and repo in workspace settings
## [0.8.0](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.7.7...optionable_codegen-v0.8.0) - 2025-11-30
### Added
- [**breaking**] derived optionable implementation for plain enums to itself
### Fixed
- document (and verify in release gha) minimal rust version
## [0.7.7](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.7.6...optionable_codegen-v0.7.7) - 2025-11-30
### Fixed
- reworked where clause broken for adding multiple bounds to existing constraint
## [0.7.6](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.7.5...optionable_codegen-v0.7.6) - 2025-11-30
### Added
- full support unsized generic types for convert
## [0.7.5](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.7.4...optionable_codegen-v0.7.5) - 2025-11-22
### Fixed
- avoid some unecessary clones during derive/codegen
- simplify generated/derived code by using `PhantomData<Self>` for the api envelope
## [0.7.4](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.7.3...optionable_codegen-v0.7.4) - 2025-11-12
### Fixed
- for kube/k8s-openapi use #[serde(rename_all_fields="...")] instead of rename_all for enums
## [0.7.3](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.7.2...optionable_codegen-v0.7.3) - 2025-11-11
### Added
- optionable::kube::deserialize_envelope function to verify api envelope
## [0.7.2](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.7.1...optionable_codegen-v0.7.2) - 2025-11-10
### Fixed
- merge derives from the derive, kube and k8s_openapi helper attributes
- forward serde(rename_all) for kube helper instead of defaulting to camelCase
## [0.7.1](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.7.0...optionable_codegen-v0.7.1) - 2025-11-10
### Added
- filter out `Optionable` out of forward derive attributes
### Other
- docs, update example
## [0.7.0](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.6.0...optionable_codegen-v0.7.0) - 2025-11-09
### Added
- granular option to copy over specified helper attributes to the optioned type
### Fixed
- [**breaking**] optionable kube/k8s_openapi no longer automatically add serde untagged
### Other
- more involved custom resource example utilizing enums and serde rename
## [0.6.0](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.4.3...optionable_codegen-v0.5.0) - 2025-11-08
### Added
- Kubernetes server side apply support (see next two items).
- Generated optioned types for all types from [`k8s-openapi`[(https://crates.io/crates/k8s-openapi)
- Support for deriving optioned types for [`kube`](https://docs.rs/kube/latest/kube/) CustomResources.
### Fixed
- [**breaking**] moved the error type from `optionable::optionable::Error` to `optionable::Error`
- use DeserializeOwned as generic type bound for optioned Deserialize-derives
- simplify generated code (use less explicit associated types)
## [0.5.0](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.4.3...optionable_codegen-v0.5.0) - 2025-10-27
### Fixed
- mv cli code to separate unpublished crate
- clippy
## [0.4.3](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.4.2...optionable_codegen-v0.4.3) - 2025-10-25
### Fixed
- `replacement-crate` codegen options also adjusts where clauses
## [0.4.2](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.4.1...optionable_codegen-v0.4.2) - 2025-10-23
### Added
- codegen/derive: add type bounds for requested `derive` of the optioned type
### Fixed
- simplify codegen
- remove some `clone`-calls from codegen
- error on misused `optionable_attr` helper attribute
- skip where_clause checks if no generic parameters are present
- simplify where clause codegen implementation
### Other
- restructure codegen code
## [0.4.1](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.4.0...optionable_codegen-v0.4.1) - 2025-10-21
### Added
- relax type restrictions for derived types with generic parameter
## [0.4.0](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.3.0...optionable_codegen-v0.4.0) - 2025-10-18
### Added
- also check for full core import path for `is_option` check
- [**breaking**] std and alloc features to support opting-out of linking to the stdlib
- update self-resolving types
### Fixed
- clippy
### Other
- fmt
## [0.3.0](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.2.0...optionable_codegen-v0.3.0) - 2025-10-15
### Added
- implement `Optionable` for ()
### Fixed
- document feature-gated derive macro and impls
- [**breaking**] refactor derive_optionable to avoid Cow in the fn signature
## [0.2.0](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.1.3...optionable_codegen-v0.2.0) - 2025-10-10
### Added
- generalize `Optionable` trait to unsized
- codegen option to prefix type path for generated `Optionable` impl
- codegen settings/flags for targetting optionable
- codegen option to adjust the crate name used for the `Optionable` traits
- rework codegen to start from all files and follow internal module included recursively
### Fixed
- pass codegen flags through for subfolders
- codegen internal fn naming
- simplify derive code
- no automatically_derived on struct/enum definitions, refactor derive code
### Other
- docs
- readme
- codegen internal docs
## [0.1.3](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.1.2...optionable_codegen-v0.1.3) - 2025-10-01
### Fixed
- handle multiple `optionable_attr` attributes
## [0.1.2](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.1.1...optionable_codegen-v0.1.2) - 2025-10-01
### Fixed
- support attribute forwarding also for enum variants
## [0.1.1](https://github.com/ngergs/optionable/compare/optionable_codegen-v0.1.0...optionable_codegen-v0.1.1) - 2025-10-01
### Added
- support forwarding of helper attributes to derived optioned types
### Other
- docs
## [0.1.0](https://github.com/ngergs/optionable/releases/tag/optionable_codegen-v0.1.0) - 2025-09-30
### Added
- default-enabled feature for derive re-export
- codegen option to add derives for generated types
- codegen add public function for attributes
- codegen option for --no-convert
- rename codegen crate, use DeriveInput as input arg
### Fixed
- simplify codegen feature config logic
- codegen for nested directories
- use clap for codegen arg parsing
- osString handling for codegen output
### Other
- docs
- codegen tests
- adjust codegen version
- readme