BREAKING Removed PredicateIsUStruct. Use struct handlers instead.
- See: Breaking - 1.6.0
NEW JSON Blueprint Library Nodes
- See: Extra - Blueprint Nodes
- Moved most editor extra samples to engine so it can be used at runtime.
NEW Struct handlers added to serializer/deserializers.
- See: Serializer Deserializer Setup
NEW JSON Writer improvements.
- Allows override config for inline object/arrays.
  See: JSON - Override Config
- Add float/int format strings to config.
NEW UE core types serializers and deserializers.
- See: UE Core Types
NEW Property reader/writer heuristic stack overflow detection.
- This avoids a hard crash when serializing running into infinite loop.
FIX EditorConfig fixes.
- Now properly indented with tab just like UE code base.

1.5.0 - 2024-2-20

BREAKING EDcDataEntry::Nil renamed to EDcDataType::None.
- This is necessary to fix Mac builds.
UE 5.4 support.
- See UE version upgrade 5.4
NEW Optional support.
- See Optional

1.4.3 - 2023-8-27

NEW Extra samples.
CHANGE small QoL changes:
- Fix FDcDiagnostic enum argument captures.
- Better FDcJsonReader::FinishRead() behavior.
- Diagnostic message fixes.
- Relax JSONReader a bit to allow root object/array.
- Add PredicateIsRootProperty util to select root property.

1.4.2 - 2023-8-1

UE 5.3 support.
- See: UE version upgrade 5.3

1.4.1 - 2023-2-15

Fix compilation on !WITH_EDITORONLY_DATA.
- See No MetaData.
UE 5.2 support.
- See: UE version upgrade 5.2

1.4.0 - 2022-11-17

Checkout blog post "DataConfig 1.4 Released with UE 5.1 Support".

NEW Support for UE 5.1.
- See UE version upgrade.
NEW Extra samples and docs.
CHANGE Use separated uplugin for UE4 and UE5.
- See Integration
FIX Core changes and fixes:
- Fail when FPropertyWriter::WriteObjectReference() takes nullptr. See test: DataConfig.Core.Property.DiagNullObject
- Additional check for class mismatch for default object deserialize handlers. See test: DataConfig.Core.Deserialize.DiagObjectClassMismatch

1.3.0 - 2022-6-20

Checkout blog post "DataConfig Core and JSON Asset 1.3 Release".

CHANGE Property reader/writer improvement and fixes
- Allow reading Array/Set/Map and native array like int arr[5] as root.
  See: Non Class/Struct Root
- Expand property with ArrayDim > 1 as array.
  See: Property
- Performance improvement by caching FScript/Array/SetHelper
NEW Extra samples:
FIX Core changes and fixes:
- Fix stale enum property fields serialization crash.
- Fix TSet/TMap serialization crashes.
- Fix soft object/class reference serialize to nil when it's not loaded.
- Fix pipe property class/object handlers.
- Fix TObjectPtr<> serialization and deserialization.
- Fix PeekReadDataPtr on class property.
- Removed FScopedStackedReader/FScopedStackedWriter usage.
- Fix HeuristicVerifyPointer diagnostic.
- Fix DC_TRY shadowing variable Ret.
- JSON now support non string keyed TMap<> as [{ "$key": <foo>, "$value": <bar> }].
  See: JSON - Map
- Fix DcPropertyUtils::DcIsSubObjectProperty()
  Now it only checks for CPF_InstancedReference.
- Update screenshots to UE5.
  Note that DataConfig still supports from 4.25 and onwards.
- Update Property docs.

1.2.2 - 2022-4-5

Support for UE 5.0.0
Add DebugGetRealPropertyValue for double BP fields.

1.2.1 - 2022-2-23

Support for UE5 Preview 1.
FIX Compile fixes for examples on UE 4.25.
FIX UE 4.25/4.26 editor extra BP serde automation test fixes.
FIX FDcAnsiJsonWriter writes non ascii char to ? when string contains escaping characters.
- FDcJsonWriter was unaffected. This only happens to the ansi char writer and only when input has escapes like \t.

1.2.0 - 2022-1-26

Checkout blog post "Introducing DataConfig 1.2".

NEW Serializer. Previously we only have deserializers.
- Serializer API mirrors deserializers.
- Builtin serialization and deserialization handlers are all roundtrip-able.
- DcDiagnosticDeserialize -> DcDiagnosticSerDe for sharing diagnostics.
- DcDeserializeUtils -> DcSerDeUtils for sharing code.
NEW MsgPack reader and writer.
- Full spec implemented, minus the "Timestamp extension type".
- Integrate and passes kawanet/msgpack-test-suite.
NEW JSON writer.
- With WIDECHAR/ANSICHAR specialization as JSON Reader.
- Accept config to output pretty or condensed output.
NEW Builtin metas.
- DcSkip - skip marked fields
- DcMsgPackBlob - marked TArray<>/Struct would be read as blob by MsgPack SerDe
CHANGE Core type changes.
- FDcReader/FDcWriter changes.
  - FDcStruct/ClassStat renamed to FDcStruct/ClassAccess.
  - ReadStruct/ClassRoot() renamed to ReadStruct/ClassRootAccess.
  - AddReadStruct/ClassRoot() that takes no argument for common use cases.
  - FDcReader::Coercion() now returns a FDcResult
  - [Read/Write]Soft[Object/Class]Reference takes FSoftObjectPtr.
  - RTTI with GetId() and CastById()
- FDcSerializer/FDcDeserializer changes.
  - DcDiagnosticDeserialize -> DcDiagnosticSerDe for sharing diagnostics.
  - DcDeserializeUtils -> DcSerDeUtils for sharing code.
  - Add handlers to read/write Soft/Lazy references as is, without loading the object.
  - Implicit call Properties.Push() before context Prepare().
  - Removed FDcScopedProperty in favor of DcDeserializeUtils::RecursiveDeserialize() it's more concise.
- FDcPropertyReader/FDcPropertyWriter changes.
  - When reading class object keys any one with $ will be ignored.
    - previously only allow $type, $path.
    - note that struct by default don't check for these. It's trivia to add the logic if you want to.
  - Add FDcPropertyReader::PeekReadDataPtr matches with PeekProperty
- FDcJsonReader changes.
  - Remove object key length limit, which was 2048 and it's incorrect.
    - Though FName is capped at 1024, which is a Unreal Engine limit.
  - Fix ReadName() which previously would fail.
  - Fix quoted string parsing/escaping in ParseQuotedString
- Add EDcDataEntry::Extension.
- Add FDcPropertyDatum template constructor to directly construct one from a FStruct*.
- FPrettyPrintWriter now print blobs with hash, previously it's pointer value.
- DcAutomationUtils::SerializeIntoJson/DeserializeIntoJson -> SerializeInto/DeserializeFrom as we're supporting other formats.
- Add HeuristicVerifyPointer to check common magic invalid pointers.
Misc fixes and QOL improvements.
- Fixed linux build. Now the headless program target cross compiles and runs under wsl.
- Serializer/Deserializer now also report diagnostics.
- Better Json reader diagnostic formatting. Now it clamps long lines properly.
- Add DataConfigEditorExtra.DcCoreTestsCommandlet as tests runner.
- Add performance benchmark.
- Restructured DataConfig book for topics on serializer and MsgPack.

1.1.1 - 2021-10-6

Support for UE 4.27.
Support for UE 5.

1.1.0 - 2021-4-24

Integrate nst/JSONTestSuite. Now DcJSONParser pass most of them. Skipped tests are also documented.
FDcAnsiJsonReader now detect and convert non ASCII UTF8 characters. Previously these characters are dropped.
Headless test runner pass along parameters to tests, for example DataConfigHeadless-Win64-Debug.exe Parsing -- n_array_just_minus

DataConfig Book