Remove quirks from main

src/EFCore.Design/Migrations/Design/CSharpSnapshotGenerator.cs

@@ -65,19 +65,15 @@ public virtual void Generate(string builderName, IModel model, IndentedStringBui
 
                 using (stringBuilder.Indent())
                 {
-                    var useOldBehavior = AppContext.TryGetSwitch("Microsoft.EntityFrameworkCore.Issue23456", out var enabled) && enabled;
-
                     // Temporary patch: specifically exclude some annotations which are known to produce identical Fluent API calls across different
                     // providers, generating them as raw annotations instead.
-                    var ambiguousAnnotations = useOldBehavior
-                        ? Array.Empty<IAnnotation>()
-                        : RemoveAmbiguousFluentApiAnnotations(
-                            annotations,
-                            name => name.EndsWith(":ValueGenerationStrategy", StringComparison.Ordinal)
-                                || name.EndsWith(":IdentityIncrement", StringComparison.Ordinal)
-                                || name.EndsWith(":IdentitySeed", StringComparison.Ordinal)
-                                || name.EndsWith(":HiLoSequenceName", StringComparison.Ordinal)
-                                || name.EndsWith(":HiLoSequenceSchema", StringComparison.Ordinal));
+                    var ambiguousAnnotations = RemoveAmbiguousFluentApiAnnotations(
+                        annotations,
+                        name => name.EndsWith(":ValueGenerationStrategy", StringComparison.Ordinal)
+                            || name.EndsWith(":IdentityIncrement", StringComparison.Ordinal)
+                            || name.EndsWith(":IdentitySeed", StringComparison.Ordinal)
+                            || name.EndsWith(":HiLoSequenceName", StringComparison.Ordinal)
+                            || name.EndsWith(":HiLoSequenceSchema", StringComparison.Ordinal));
 
                     foreach (var methodCallCodeFragment in
                         Dependencies.AnnotationCodeGenerator.GenerateFluentApiCalls(model, annotations))
@@ -589,13 +585,9 @@ protected virtual void GeneratePropertyAnnotations([NotNull] IProperty property,
             GenerateFluentApiForDefaultValue(property, stringBuilder);
             annotations.Remove(RelationalAnnotationNames.DefaultValue);
 
-            var useOldBehavior = AppContext.TryGetSwitch("Microsoft.EntityFrameworkCore.Issue23456", out var enabled) && enabled;
-
             // Temporary patch: specifically exclude some annotations which are known to produce identical Fluent API calls across different
             // providers, generating them as raw annotations instead.
-            var ambiguousAnnotations = useOldBehavior
-                ? Array.Empty<IAnnotation>()
-                : RemoveAmbiguousFluentApiAnnotations(
+            var ambiguousAnnotations = RemoveAmbiguousFluentApiAnnotations(
                 annotations,
                 name => name.EndsWith(":ValueGenerationStrategy", StringComparison.Ordinal)
                     || name.EndsWith(":IdentityIncrement", StringComparison.Ordinal)
@@ -794,13 +786,9 @@ protected virtual void GenerateIndexAnnotations(
                 .FilterIgnoredAnnotations(index.GetAnnotations())
                 .ToDictionary(a => a.Name, a => a);
 
-            var useOldBehavior = AppContext.TryGetSwitch("Microsoft.EntityFrameworkCore.Issue23456", out var enabled) && enabled;
-
             // Temporary patch: specifically exclude some annotations which are known to produce identical Fluent API calls across different
             // providers, generating them as raw annotations instead.
-            var ambiguousAnnotations = useOldBehavior
-                ? Array.Empty<IAnnotation>()
-                : RemoveAmbiguousFluentApiAnnotations(
+            var ambiguousAnnotations = RemoveAmbiguousFluentApiAnnotations(
                 annotations,
                 name => name.EndsWith(":Include", StringComparison.Ordinal));
 

src/EFCore.InMemory/Query/Internal/InMemoryQueryableMethodTranslatingExpressionVisitor.cs

@@ -668,9 +668,7 @@ private static bool ProcessJoinCondition(
                 }
             }
 
-            if (!(AppContext.TryGetSwitch("Microsoft.EntityFrameworkCore.Issue23593", out var enabled)
-                && enabled)
-                && joinCondition is MethodCallExpression methodCallExpression
+            if (joinCondition is MethodCallExpression methodCallExpression
                 && methodCallExpression.Method.IsStatic
                 && methodCallExpression.Method.DeclaringType == typeof(object)
                 && methodCallExpression.Method.Name == nameof(object.Equals)
@@ -1506,8 +1504,7 @@ outerKey is NewArrayExpression newArrayExpression
                             : foreignKey.Properties,
                         makeNullable);
 
-                    if (foreignKey.Properties.Count > 1
-                        && !(AppContext.TryGetSwitch("Microsoft.EntityFrameworkCore23687", out var enabled) && enabled))
+                    if (foreignKey.Properties.Count > 1)
                     {
                         outerKey = Expression.New(AnonymousObject.AnonymousObjectCtor, outerKey);
                         innerKey = Expression.New(AnonymousObject.AnonymousObjectCtor, innerKey);

src/EFCore.Relational/Extensions/RelationalIndexExtensions.cs

@@ -90,7 +90,6 @@ public static string GetDefaultDatabaseName([NotNull] this IIndex index, in Stor
                 return null;
             }
 
-            var useOldBehavior = AppContext.TryGetSwitch("Microsoft.EntityFrameworkCore.Issue23672", out var enabled) && enabled;
             var rootIndex = index;
 
             // Limit traversal to avoid getting stuck in a cycle (validation will throw for these later)
@@ -103,7 +102,7 @@ public static string GetDefaultDatabaseName([NotNull] this IIndex index, in Stor
                     .SelectMany(fk => fk.PrincipalEntityType.GetIndexes()))
                 {
                     var otherColumnNames = otherIndex.Properties.GetColumnNames(storeObject);
-                    if ((otherColumnNames != null || useOldBehavior)
+                    if ((otherColumnNames != null)
                         && otherColumnNames.SequenceEqual(columnNames))
                     {
                         linkedIndex = otherIndex;

src/EFCore.Relational/Extensions/RelationalKeyExtensions.cs

@@ -1,7 +1,6 @@
 // Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
-using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -104,7 +103,6 @@ public static string GetDefaultName([NotNull] this IKey key, in StoreObjectIdent
                     return null;
                 }
 
-                var useOldBehavior = AppContext.TryGetSwitch("Microsoft.EntityFrameworkCore.Issue23672", out var enabled) && enabled;
                 var rootKey = key;
 
                 // Limit traversal to avoid getting stuck in a cycle (validation will throw for these later)
@@ -117,7 +115,7 @@ public static string GetDefaultName([NotNull] this IKey key, in StoreObjectIdent
                         .SelectMany(fk => fk.PrincipalEntityType.GetKeys()))
                     {
                         var otherColumnNames = otherKey.Properties.GetColumnNames(storeObject);
-                        if ((otherColumnNames != null || useOldBehavior)
+                        if ((otherColumnNames != null)
                             && otherColumnNames.SequenceEqual(columnNames))
                         {
                             linkedKey = otherKey;

src/EFCore.Relational/Migrations/MigrationBuilder.cs

@@ -1335,13 +1335,12 @@ private OperationBuilder<InsertDataOperation> InsertDataInternal(
             Check.NotNull(columns, nameof(columns));
             Check.NotNull(values, nameof(values));
 
-            var useOldBehavior = AppContext.TryGetSwitch("Microsoft.EntityFrameworkCore.Issue23503", out var enabled) && enabled;
             var operation = new InsertDataOperation
             {
                 Table = table,
                 Schema = schema,
                 Columns = columns,
-                ColumnTypes = useOldBehavior ? null : columnTypes,
+                ColumnTypes = columnTypes,
                 Values = values
             };
             Operations.Add(operation);

src/EFCore.Relational/Query/SqlNullabilityProcessor.cs

@@ -558,13 +558,6 @@ protected virtual SqlExpression VisitExists(
             var subquery = Visit(existsExpression.Subquery);
             nullable = false;
 
-            if (AppContext.TryGetSwitch("Microsoft.EntityFrameworkCore23617", out var enabled) && enabled)
-            {
-                return TryGetBoolConstantValue(subquery.Predicate) == false
-                    ? subquery.Predicate!
-                    : existsExpression.Update(subquery);
-            }
-
             // if subquery has predicate which evaluates to false, we can simply return false
             // if the exisits is negated we need to return true instead
             return TryGetBoolConstantValue(subquery.Predicate) == false

src/EFCore.Relational/Update/Internal/CommandBatchPreparer.cs

@@ -37,8 +37,6 @@ public class CommandBatchPreparer : ICommandBatchPreparer
         private readonly IKeyValueIndexFactorySource _keyValueIndexFactorySource;
         private readonly int _minBatchSize;
         private readonly bool _sensitiveLoggingEnabled;
-        private static readonly bool _useOldStateBehavior =
-            AppContext.TryGetSwitch("Microsoft.EntityFrameworkCore.Issue23668", out var enabled) && enabled;
 
         /// <summary>
         ///     This is an internal API that supports the Entity Framework Core infrastructure and not subject to
@@ -494,7 +492,7 @@ private Dictionary<IKeyValueIndex, List<ModificationCommand>> CreateKeyValuePred
                                 .Where(c => c.PrincipalTable.Name == command.TableName && c.PrincipalTable.Schema == command.Schema);
 
                             if (!constraints.Any()
-                                || ((_useOldStateBehavior ? command.EntityState : entry.EntityState) == EntityState.Modified
+                                || (entry.EntityState == EntityState.Modified
                                     && !foreignKey.PrincipalKey.Properties.Any(p => entry.IsModified(p))))
                             {
                                 continue;
@@ -529,7 +527,7 @@ private Dictionary<IKeyValueIndex, List<ModificationCommand>> CreateKeyValuePred
                                 .Where(c => c.Table.Name == command.TableName && c.Table.Schema == command.Schema);
 
                             if (!constraints.Any()
-                                || ((_useOldStateBehavior ? command.EntityState : entry.EntityState) == EntityState.Modified
+                                || (entry.EntityState == EntityState.Modified
                                     && !foreignKey.Properties.Any(p => entry.IsModified(p))))
                             {
                                 continue;
@@ -575,7 +573,7 @@ private void AddForeignKeyEdges(
                             {
                                 if (!foreignKey.GetMappedConstraints()
                                         .Any(c => c.Table.Name == command.TableName && c.Table.Schema == command.Schema)
-                                    || ((_useOldStateBehavior ? command.EntityState : entry.EntityState) == EntityState.Modified
+                                    || (entry.EntityState == EntityState.Modified
                                         && !foreignKey.Properties.Any(p => entry.IsModified(p))))
                                 {
                                     continue;
@@ -661,7 +659,7 @@ private void AddUniqueValueEdges(Multigraph<ModificationCommand, IAnnotatable> c
                     var entry = command.Entries[entryIndex];
                     foreach (var index in entry.EntityType.GetIndexes().Where(i => i.IsUnique && i.GetMappedTableIndexes().Any()))
                     {
-                        if ((_useOldStateBehavior ? command.EntityState : entry.EntityState) == EntityState.Modified
+                        if (entry.EntityState == EntityState.Modified
                             && !index.Properties.Any(p => entry.IsModified(p)))
                         {
                             continue;
@@ -722,7 +720,7 @@ private void AddUniqueValueEdges(Multigraph<ModificationCommand, IAnnotatable> c
                     {
                         foreach (var index in entry.EntityType.GetIndexes().Where(i => i.IsUnique && i.GetMappedTableIndexes().Any()))
                         {
-                            if ((_useOldStateBehavior ? command.EntityState : entry.EntityState) == EntityState.Modified
+                            if (entry.EntityState == EntityState.Modified
                                 && !index.Properties.Any(p => entry.IsModified(p)))
                             {
                                 continue;

src/EFCore/ChangeTracking/Internal/NavigationFixer.cs

@@ -1,7 +1,6 @@
 // Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
-using System;
 using System.Collections;
 using System.Collections.Generic;
 using System.Linq;
@@ -30,12 +29,6 @@ namespace Microsoft.EntityFrameworkCore.ChangeTracking.Internal
     /// </summary>
     public class NavigationFixer : INavigationFixer
     {
-        private readonly bool _useOldBehaviorFor23659
-            = AppContext.TryGetSwitch("Microsoft.EntityFrameworkCore.Issue23659", out var enabled) && enabled;
-
-        private readonly bool _useOldBehaviorFor23787
-            = AppContext.TryGetSwitch("Microsoft.EntityFrameworkCore.Issue23787", out var enabled) && enabled;
-
         private readonly IChangeDetector _changeDetector;
         private readonly IEntityGraphAttacher _attacher;
         private bool _inFixup;
@@ -834,10 +827,7 @@ private void InitialFixup(
                                 AddToCollection(otherEntry, skipNavigation.Inverse, entry, fromQuery);
                             }
 
-                            if (!_useOldBehaviorFor23787)
-                            {
-                                entry.AddToCollectionSnapshot(skipNavigation, otherEntity);
-                            }
+                            entry.AddToCollectionSnapshot(skipNavigation, otherEntity);
                         }
                     }
                 }
@@ -894,10 +884,7 @@ private void DelayedFixup(
                     {
                         FixupToPrincipal(entry, referencedEntry, navigation.ForeignKey, setModified, fromQuery);
 
-                        if (!_useOldBehaviorFor23659)
-                        {
-                            FixupSkipNavigations(entry, navigation.ForeignKey, fromQuery);
-                        }
+                        FixupSkipNavigations(entry, navigation.ForeignKey, fromQuery);
                     }
                 }
             }