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roji merged 1 commit into from
May 1, 2026
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Document complex type property configuration via lambda chaining #5349

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23 changes: 23 additions & 0 deletions entity-framework/core/what-is-new/ef-core-11.0/whatsnew.md
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Expand Up @@ -83,6 +83,29 @@ For more information on inheritance mapping strategies, see [Inheritance](xref:c

Complex types are now fully supported in the Azure Cosmos DB provider, embedded as nested JSON objects or arrays. For more information, [see the Cosmos DB section below](#cosmos-complex-types).

<a name="complex-types-property-chaining"></a>

### Configuring complex type properties via lambda chaining

Previously, configuring a property on a complex type required first calling `ComplexProperty` to get the complex type builder, and then calling `Property` on it:

```csharp
modelBuilder.Entity<MyEntity>()
.ComplexProperty(e => e.Details)
.Property(d => d.Description)
.HasMaxLength(500);
```

EF Core 11 now allows configuring complex type properties directly by chaining member access in the lambda expression passed to `Property`:

```csharp
modelBuilder.Entity<MyEntity>()
.Property(e => e.Details.Description)
.HasMaxLength(500);
```
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AndriySvyryd marked this conversation as resolved.

This simplifies model configuration by removing the need to explicitly navigate through intermediate complex type builders to reach the property you want to configure.
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AndriySvyryd marked this conversation as resolved.

<a name="complex-types-stabilization"></a>

### Stabilization and bug fixes
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