Issues

• Complete FirstWithoutOrderByAndFilterWarning coverage for subqueries

  area-query
  Task

  dotnet/efcore#39310 · Filter by author AndriySvyryd opened on Oct 17, 2026 · Backlog

• Precompiled queries reconstruct nullable-long coalesce with nullable result in anonymous projection

  area-precompiled-queriesarea-query
  Bug

  dotnet/efcore#39309 · Filter by author nickna opened on Oct 17, 2026 · 12.0-preview1
  1

  

• Precompiled queries evaluate guarded Nullable<T>.Value during design-time parameter extraction

  area-precompiled-queriesarea-query
  Bug

  dotnet/efcore#39308 · Filter by author nickna opened on Oct 17, 2026 · 12.0-preview1
  1

• Query precompiler fails to lift a double branch in a target-typed nullable conditional

  area-precompiled-queries
  Bug

  dotnet/efcore#39304 · Filter by author nickna opened on Oct 16, 2026 · 12.0-preview1
  1

  

• Query precompiler rejects an integer zero implicitly converted to decimal in a projection

  area-precompiled-queries
  Bug

  dotnet/efcore#39303 · Filter by author nickna opened on Oct 16, 2026 · 12.0-preview1
  1

  

• Query precompiler rejects required-member DTO initializer because its constructor translates to an invocation

  area-precompiled-queries
  Bug

  dotnet/efcore#39302 · Filter by author nickna opened on Oct 16, 2026 · 12.0-preview1
  1

  

• Compiled model writes NullableValueComparer<TComparer> (CS0453) for a struct's ValueComparer applied to a nullable property

  area-aotarea-model-buildingcustomer-reported
  Bug

  dotnet/efcore#39291 · Filter by author AdCodicem opened on Oct 16, 2026 · 12.0.0
  

• Azure SQL: JSON_VALUE RETURNING fails when OPENJSON projects nested JSON as nvarchar(max)

  area-jsonarea-queryarea-sqlservercustomer-reportedregression
  Bug

  dotnet/efcore#39277 · Filter by author RanKarat opened on Oct 16, 2026 · 10.0.16
  3

  

• MinBy/MaxBy lowering does not skip null keys as LINQ-to-Objects does

  area-query
  Bug

  dotnet/efcore#39276 · Filter by author roji opened on Oct 16, 2026 · Backlog
  1

• EF Tasks package docs and startup validation still recommend removed EFStartupProject property

  area-tools
  Task

  dotnet/efcore#39275 · Filter by author nickna opened on Oct 16, 2026 · 12.0-preview1
  

• Query precompiler throws Non-IQueryable first parameter for ThenInclude

  area-precompiled-queriesarea-query
  Bug

  dotnet/efcore#39274 · Filter by author nickna opened on Oct 16, 2026 · 12.0-preview1
  1

  

• Query precompiler rejects class constant as unknown identifier in predicate

  area-precompiled-queries
  Bug

  dotnet/efcore#39273 · Filter by author nickna opened on Oct 16, 2026 · 12.0-preview1
  1

  

• Query precompiler throws parameter-evaluation NRE for captured object properties

  area-precompiled-queriesarea-query
  Bug

  dotnet/efcore#39272 · Filter by author nickna opened on Oct 16, 2026 · 12.0-preview1
  1

  

• Query precompilation throws EvaluateOperand NullReferenceException for scalar ExecuteUpdate value setter

  area-bulkupdatearea-precompiled-queriesarea-query
  Bug

  dotnet/efcore#39271 · Filter by author nickna opened on Oct 16, 2026 · 12.0-preview1
  1

  

• JsonColumn with primitive collection in Select throws NullReference exception

  area-primitive-collectionsarea-querycustomer-reported
  Bug

  dotnet/efcore#39255 · Filter by author Xriuk opened on Oct 14, 2026 · 12.0-preview1
  

• A cancelled connection open does not reach interceptors: the async path calls the sync ConnectionCanceled, and the composite interceptor forwards neither

  area-interception
  Bug

  dotnet/efcore#39254 · Filter by author PatrizioRicciardelloAtSqlService opened on Oct 14, 2026 · 12.0-preview1
  

• EF Core 11 regression: FromSql on an entity with a JSON complex property throws NullReferenceException in GenerateComplexJsonShaper

  area-jsonarea-queryregression
  Bug

  dotnet/efcore#39251 · Filter by author bblankenship78 opened on Oct 14, 2026 · 11.0.0
  2

  

• NullReferenceException when an element value converter of a primitive collection returns null for a non-null element (read on 10.0 and 11.0, write on 10.0)

  area-jsonarea-primitive-collectionsarea-queryarea-type-mappingcustomer-reported
  Bug

  dotnet/efcore#39245 · Filter by author AdCodicem opened on Oct 13, 2026 · 11.0.0
  1

  

• TPC: columns of a complex property inherited by a leaf table lose the complex property prefix, and adding a second one of the same type swaps the data

  area-complex-typescustomer-reported
  Bug

  dotnet/efcore#39244 · Filter by author AdCodicem opened on Oct 13, 2026 · 11.0.0
  

• Invalid translation for constant negative TimeSpan for SQL Server

  area-queryarea-sqlservercustomer-reported
  Bug

  dotnet/efcore#39222 · Filter by author Aziz-Dhiab opened on Oct 11, 2026 · Backlog
  1

• Split query + projection with Skip/Take: paging subquery still has no key ordering in EF 10, child collections come back empty

  area-querycustomer-reported
  Bug

  dotnet/efcore#39206 · Filter by author wpsmaxi opened on Oct 9, 2026 · Backlog
  1

• Microsoft.Data.Sqlite 10.0.11+ fails to load on RHEL 8 (GLIBC_2.33 not found)

  area-adonet-sqlitearea-externalcustomer-reportedregression
  Bug

  dotnet/efcore#39148 · Filter by author timothycoleman opened on Oct 2, 2026 · 12.0.0
  6

• EF Core 12 release checklist

  Task

  dotnet/efcore#39121 · Filter by author AndriySvyryd opened on Sep 28, 2026 · 12.0.0
  

• Cosmos DB: DateTime serialization format causing errors in ordering and filtering

  area-jsonbreaking-changecustomer-reported
  Bug

  dotnet/efcore#39113 · Filter by author Henri-Wiechers opened on Sep 28, 2026 · Backlog
  4

• Owned JSON collection navigation absent from the stored document materializes as null (owned counterpart of #38625)

  area-jsonarea-owned-entitiesarea-query
  Bug

  dotnet/efcore#39060 · Filter by author philcarbone opened on Sep 22, 2026 · Backlog
  1