Search results

Unify Relational and Cosmos JSON serialization implementation

area-json

Status: Open.

Task

#38664 In dotnet/efcore;

· AndriySvyryd opened on Jul 17, 2026

·  

Backlog

Correlated FirstOrDefault subquery over a Concat/Union (keyless) source inside a collection projection: silently missing collection elements (single query) or ArgumentOutOfRangeException (split query)

Status: Open.

#38660 In dotnet/efcore;

· ulissesqueiroz opened on Jul 16, 2026

Required owned entity on a TPH derived type is materialized for an unrelated row

customer-reported

Status: Open.

#38659 In dotnet/efcore;

· galaxy-atlas opened on Jul 16, 2026

ComplexCollection + ToJson(): DetectChanges throws "must be initialized to a non-null value" when a nullable nested complex property containing a collection is set to null

Status: Open.

#38632 In dotnet/efcore;

· jmejiaapollok12 opened on Jul 15, 2026

Cosmos: preserve unmapped properties

area-cosmos

area-save-changes

Status: Open.

Feature

#38631 In dotnet/efcore;

· AndriySvyryd opened on Jul 15, 2026

·  

Backlog

Possible issue in JsonReaderData commented by copilot on off-topic pr

area-cosmos

Status: Open.

Task

#38630 In dotnet/efcore;

· JoasE opened on Jul 15, 2026

·  

11.0.0

Allow safe numerical comparisons across types

area-query

Status: Open.

Feature

#38629 In dotnet/efcore;

· ajcvickers opened on Jul 15, 2026

·  

Backlog

JSON-absent required complex collection materializes as null under ComplexProperty().ToJson(), then throws InvalidOperationException in PrepareToSave on save

Status: Open.

#38625 In dotnet/efcore;

· philcarbone opened on Jul 15, 2026

Allow providers to overwrite structural type scalar property order

area-model-building

consider-for-next-release

customer-reported

Status: Open.

Feature

#38619 In dotnet/efcore;

· JoasE opened on Jul 14, 2026

·  

Backlog

JSON mapping via complex types is significantly slower than via owned entities for nested hierachies

area-complex-types

area-perf

consider-for-next-release

customer-reported

Status: Open.

Bug

#38616 In dotnet/efcore;

· Kaskadee opened on Jul 13, 2026

·  

Backlog

Exeption when querying json, that happens only on Azure SQL with compatibility level 170

area-json

area-query

area-sqlserver

customer-reported

Status: Open.

#38615 In dotnet/efcore;

· KarolStosik opened on Jul 13, 2026

·  

10.0.12

Query: whole non-entity object from a plain (non-aggregated) LeftJoin/DefaultIfEmpty inner is not nulled on no-match

area-query

Status: Open.

Bug

#38608 In dotnet/efcore;

· ajcvickers opened on Jul 10, 2026

·  

Backlog