Issues

• Microsoft.Data.Sqlite: GetValues rejects an array shorter than the row, unlike the IDataRecord contract

  area-adonet-sqlite
  Bug

  dotnet/efcore#39352 · Filter by author alaricd opened on Oct 21, 2026 · 12.0-preview1

• Query: The LINQ expression 'p' could not be translated when Any predicate compares parameter with expression referencing parameter (e.g. p => p == p.ToUpper())

  area-primitive-collectionsarea-querycustomer-reported
  Bug

  dotnet/efcore#39351 · Filter by author bkoelman opened on Oct 21, 2026 · 12.0.0
  3

• Translate Enumerable.Concat over byte arrays

  Feature

  dotnet/efcore#39345 · Filter by author roji opened on Oct 20, 2026 · Backlog

• Migrator retains every pending migration's target model for the whole Migrate call

  area-migrationsarea-perf
  Bug

  dotnet/efcore#39339 · Filter by author melfahn opened on Oct 19, 2026 · Backlog

• Microsoft.Data.Sqlite: disposing a SqliteCommand closes its open SqliteDataReader

  area-adonet-sqlite
  Bug

  dotnet/efcore#39336 · Filter by author alaricd opened on Oct 19, 2026 · 12.0-preview1
  1

• SQL Server: quadratic parameter-name generation across split queries with MultipleParameters (10.0.13)

  area-perfarea-query
  dotnet/efcore#39333 · Filter by author CalculationCycle opened on Oct 19, 2026 · 12.0.0
  

• Collection Contains normalization rewrites any Contains overload and guesses the element type from the first type argument

  area-query
  Bug

  dotnet/efcore#39329 · Filter by author CaffeinatedCoder opened on Oct 19, 2026 · 12.0.0

• SQLite: JSON property names that need quoting translate to a ->> path that never matches

  area-jsonarea-queryarea-sqlite
  Bug

  dotnet/efcore#39328 · Filter by author garcipat opened on Oct 19, 2026
  1

• Connection open count survives the reset of a pooled DbContext, so later leases keep the connection open

  area-dbcontextcustomer-reported
  Bug

  dotnet/efcore#39327 · Filter by author dennev opened on Oct 19, 2026 · Backlog

• Projecting a JSON-mapped complex property with AsNoTrackingWithIdentityResolution throws InvalidCastException

  area-complex-typesarea-jsonarea-querycustomer-reported
  Bug

  dotnet/efcore#39322 · Filter by author bkoelman opened on Oct 17, 2026 · 12.0.0
  1

  

• 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
  4

  

• 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