version
assemblies
classes
structs
enums
interfaces
delegates
.NET 4.5.1
129
11,028
357
1,933
1,017
658
.NET 4.5.2
129
11,028
357
1,933
1,017
658
-
-
-
-
-
-

129 updated
4.5.1 4.5.2
Accessibility
CustomMarshalers
ISymWrapper
Microsoft.Activities.Build
Microsoft.Build
Microsoft.Build.Conversion.v4.0
Microsoft.Build.Engine
Microsoft.Build.Framework
Microsoft.Build.Tasks.v4.0
Microsoft.Build.Utilities.v4.0
Microsoft.CSharp
Microsoft.JScript
Microsoft.VisualBasic
Microsoft.VisualBasic.Compatibility
Microsoft.VisualBasic.Compatibility.Data
Microsoft.VisualC
Microsoft.VisualC.STLCLR
mscorlib
PresentationBuildTasks
PresentationCore
PresentationFramework
PresentationFramework.Aero
PresentationFramework.Aero2
PresentationFramework.AeroLite
PresentationFramework.Classic
PresentationFramework.Luna
PresentationFramework.Royale
ReachFramework
sysglobl
System
System.Activities
System.Activities.Core.Presentation
System.Activities.DurableInstancing
System.Activities.Presentation
System.AddIn
System.AddIn.Contract
System.ComponentModel.Composition
System.ComponentModel.Composition.Registration
System.ComponentModel.DataAnnotations
System.Configuration
System.Configuration.Install
System.Core
System.Data
System.Data.DataSetExtensions
System.Data.Entity
System.Data.Entity.Design
System.Data.Linq
System.Data.OracleClient
System.Data.Services
System.Data.Services.Client
System.Data.Services.Design
System.Data.SqlXml
System.Deployment
System.Design
System.Device
System.DirectoryServices
System.DirectoryServices.AccountManagement
System.DirectoryServices.Protocols
System.Drawing
System.Drawing.Design
System.EnterpriseServices
System.IdentityModel
System.IdentityModel.Selectors
System.IdentityModel.Services
System.IO.Compression
System.IO.Compression.FileSystem
System.IO.Log
System.Management
System.Management.Instrumentation
System.Messaging
System.Net
System.Net.Http
System.Net.Http.WebRequest
System.Numerics
System.Printing
System.Reflection.Context
System.Runtime.Caching
System.Runtime.DurableInstancing
System.Runtime.Remoting
System.Runtime.Serialization
System.Runtime.Serialization.Formatters.Soap
System.Security
System.ServiceModel
System.ServiceModel.Activation
System.ServiceModel.Activities
System.ServiceModel.Channels
System.ServiceModel.Discovery
System.ServiceModel.Routing
System.ServiceModel.Web
System.ServiceProcess
System.Speech
System.Transactions
System.Web
System.Web.Abstractions
System.Web.ApplicationServices
System.Web.DataVisualization
System.Web.DataVisualization.Design
System.Web.DynamicData
System.Web.DynamicData.Design
System.Web.Entity
System.Web.Entity.Design
System.Web.Extensions
System.Web.Extensions.Design
System.Web.Mobile
System.Web.RegularExpressions
System.Web.Routing
System.Web.Services
System.Windows
System.Windows.Controls.Ribbon
System.Windows.Forms
System.Windows.Forms.DataVisualization
System.Windows.Forms.DataVisualization.Design
System.Windows.Input.Manipulations
System.Windows.Presentation
System.Workflow.Activities
System.Workflow.ComponentModel
System.Workflow.Runtime
System.WorkflowServices
System.Xaml
System.Xml
System.Xml.Linq
System.Xml.Serialization
UIAutomationClient
UIAutomationClientsideProviders
UIAutomationProvider
UIAutomationTypes
WindowsBase
WindowsFormsIntegration
XamlBuildTask

6 updated
4.5.1 4.5.2
new
updated
deleted
deprecated
System.IO
-
1
-
-
System.Runtime.Serialization
-
1
-
-
System.Transactions
-
1
-
-
System.Web
-
3
-
-
System.Web.Hosting
-
1
-
-
System.Windows.Forms
-
1
-
-
0
8
0
0

1 updated type
System.IO.UnmanagedMemoryStream class
Found 3 new members
method FlushAsync(CancellationToken)
method ReadAsync(Byte[],Int32,Int32,CancellationToken)
method WriteAsync(Byte[],Int32,Int32,CancellationToken)
System.Runtime.Serialization.FormatterServices class
Is now static

1 updated type
System.Transactions.Transaction class
Found 1 new member
method PromoteAndEnlistDurable(Guid,IPromotableSinglePhaseNotification,ISinglePhaseNotification,EnlistmentOptions)

3 updated types
System.Web.HttpResponse class
Found 3 new members
property HeadersWritten
property SuppressDefaultCacheControlHeader
method AddOnSendingHeaders(Action<HttpContext>)
System.Web.HttpResponseBase class
Found 3 new members
property HeadersWritten
property SuppressDefaultCacheControlHeader
method AddOnSendingHeaders(Action<HttpContextBase>)
System.Web.HttpResponseWrapper class
Found 3 new members
property HeadersWritten
property SuppressDefaultCacheControlHeader
method AddOnSendingHeaders(Action<HttpContextBase>)

1 updated type
System.Web.Hosting.HostingEnvironment class
Found 2 new members
method QueueBackgroundWorkItem(Action<CancellationToken>)
method QueueBackgroundWorkItem(Func<CancellationToken, Task>)

1 updated type
System.Windows.Forms.ToolStripRenderer class
Found 3 new members
field Offset2X
field Offset2Y
method ScaleArrowOffsetsIfNeeded()

Excluded the following 18 custom attributes from the comparison.

System.Runtime.InteropServices.BestFitMappingAttribute
System.Runtime.InteropServices.ClassInterfaceAttribute
System.Runtime.InteropServices.CoClassAttribute
System.Runtime.InteropServices.ComAliasNameAttribute
System.Runtime.InteropServices.ComCompatibleVersionAttribute
System.Runtime.InteropServices.ComConversionLossAttribute
System.Runtime.InteropServices.ComDefaultInterfaceAttribute
System.Runtime.InteropServices.ComVisibleAttribute
System.Runtime.InteropServices.DefaultDllImportSearchPathsAttribute
System.Runtime.InteropServices.DispIdAttribute
System.Runtime.InteropServices.ImportedFromTypeLibAttribute
System.Runtime.InteropServices.InterfaceTypeAttribute
System.Runtime.InteropServices.LCIDConversionAttribute
System.Runtime.InteropServices.ProgIdAttribute
System.Runtime.InteropServices.TypeLibFuncAttribute
System.Runtime.InteropServices.TypeLibImportClassAttribute
System.Runtime.InteropServices.TypeLibTypeAttribute
System.Runtime.InteropServices.TypeLibVersionAttribute