12.0.0

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Cosmos: make complex types the default (instead of owned)

area-cosmos

area-model-building

Status: Open.

Task

#37954 In dotnet/efcore;

· roji opened on Mar 19, 2026

Support C# union mapping to JSON

area-json

area-o/c-mapping

Status: Open.

Feature

#38059 In dotnet/efcore;

· AndriySvyryd opened on Apr 7, 2026

Switch to non-generated materialization

area-aot

area-query

consider-for-next-release

Status: Open.

Feature

#38310 In dotnet/efcore;

· roji opened on May 22, 2026

Rearchitect navigation expansion to happen in translation, not preprocessing

area-query

Status: Open.

Task

#37859 In dotnet/efcore;

· roji opened on Mar 5, 2026

Precompiled Queries fail for captured parameters

area-aot

area-precompiled-queries

customer-reported

Status: Open.

Bug

#35887 In dotnet/efcore;

· vancodocton opened on Mar 31, 2025

EF8 - Regression on Contains query when column collation is not default DB collation

area-primitive-collections

area-query

consider-for-next-release

customer-reported

regression

Status: Open.

Bug

#32147 In dotnet/efcore;

· clement911 opened on Oct 24, 2023

Can no longer client-evaluate query with projection involving non-primitive list

area-query

regression

Status: Open.

Bug

#32634 In dotnet/efcore;

· roji opened on Dec 18, 2023

Sql Server - LINQ Contains returns false positive results for string values larger than column size

area-primitive-collections

area-query

customer-reported

regression

Status: Open.

Bug

#32735 In dotnet/efcore;

· sergeitemkin opened on Jan 5, 2024

EF8 core: filtering by enum doesn't work with TPH and OfType

area-query

customer-reported

regression

Status: Open.

Bug

#32865 In dotnet/efcore;

· karczk-dnv opened on Jan 19, 2024

Concat on string property Error

area-primitive-collections

area-query

customer-reported

regression

Status: Open.

Bug

#33061 In dotnet/efcore;

· GLuca74 opened on Feb 11, 2024

Query optimization compares case sensitively while SqlServer is case insensitive?

area-query

consider-for-next-release

customer-reported

regression

Status: Open.

Bug

#34862 In dotnet/efcore;

· kopfsick opened on Oct 9, 2024

Cosmos SQL query enum array (Contains) to string conversion not working properly

area-cosmos

area-query

customer-reported

regression

Status: Open.

Bug

#35092 In dotnet/efcore;

· Kevenvz opened on Nov 13, 2024

NAOT; error when trying to run precompile queries step - "The build host could not be found"

area-precompiled-queries

area-tools

regression

Status: Open.

Bug

#36055 In dotnet/efcore;

· maumar opened on May 8, 2025

[10 Regression] ExecuteUpdate no longer works within compiled queries

area-bulkupdate

area-query

customer-reported

regression

Status: Open.

Bug

#36741 In dotnet/efcore;

· Atulin opened on Sep 10, 2025

The SQL logged by EF doesn't reflect changes made by interceptors

area-interception

area-logging

area-query

customer-reported

needs-design

regression

Status: Open.

Bug

#37236 In dotnet/efcore;

· ken-swyfft opened on Nov 25, 2025

Read-only property requires explicit ignore when type is derived from NetTopologySuite.Geometries.GeometryCollection

area-model-building

customer-reported

regression

Status: Open.

Bug

#37263 In dotnet/efcore;

· palhal opened on Nov 30, 2025

EFCore.Tasks: Don't use --nativeaot when the build isn't using PublishAOT=true

area-aot

area-tools

customer-reported

Status: Open.

Feature

#34473 In dotnet/efcore;

· AndriySvyryd opened on Aug 19, 2024

PMC: Set PublishAot=false when building the project

area-aot

area-tools

customer-reported

help wantedThis issue involves technologies where we are not experts. Expert help would be appreciated.This issue involves technologies where we are not experts. Expert help would be appreciated.

Status: Open.

Feature

#35526 In dotnet/efcore;

· AndriySvyryd opened on Jan 25, 2025

AOT: Add support for private types

area-aot

area-model-building

Status: Open.

Feature

#35985 In dotnet/efcore;

· AndriySvyryd opened on Apr 23, 2025

Remove MakeGenericMethod from the query hot path

area-aot

area-perf

area-query

Status: Open.

Feature

#27437 In dotnet/efcore;

· roji opened on Feb 14, 2022

Query translation fails when Where references a projection guarded by child != null && grandChild != null

area-query

customer-reported

Status: Open.

Bug

#38565 In dotnet/efcore;

· aheubusch opened on Jul 7, 2026

SqlServer: KeyNotFoundException in RewriteOperations when a temporal table is renamed into the model's default schema

area-migrations

area-sqlserver

area-temporal-tables

regression

Status: Open.

Bug

#38601 In dotnet/efcore;

· sliekens opened on Jul 9, 2026

Cosmos: equality on a hierarchical partition-key prefix is lifted out of WHERE into the partition hint, forgoing the index and scanning the physical partition

area-cosmos

area-query

customer-reported

Status: Open.

Bug

#38598 In dotnet/efcore;

· vitorlinares opened on Jul 9, 2026

SQL Server: allow using float[], ReadOnlyMemory<float> and similar instead of SqlVector<float> to represent embeddings

area-query

area-sqlserver

area-vector-search

Status: Open.

Feature

#37025 In dotnet/efcore;

· roji opened on Oct 24, 2025

Cosmos: Allow partial updates

area-cosmos

area-save-changes

Status: Open.

Feature

#13559 In dotnet/efcore;

· AndriySvyryd opened on Oct 9, 2018