Microsoft Net Framework 4.5 2 For Mac

Posted on 04.04.2020by admin

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Microsoft Net Framework 4.5 2 For Mac 1
Microsoft Dot Net 4.5.2 Framework
Microsoft .net 4 5 2
Microsoft Net Framework 4.5 2 For Mac Os

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ConcurrentDictionary is a type that is known to not to deserialize correctly if serialized with the.NET Framework 4.5 or earlier and deserialized with the.NET Framework 4.5.1 or later. Suggestion: There are a number of possible work-arounds for this issue: Upgrade the serializing computer to use the.NET Framework 4.5.1, as well. However the current Mono version does not support.NET 4.0. You will have to wait for Mono 2.12 which is planned ^ for the fall of 2011. So the question is are you able to target.NET 3.5, in which case you can make use of Mono right now. May 07, 2014 Currently the.NET Framework 4.5.2 is an optional download on Microsoft Download Center. However, these changes will eventually be pushed out over Windows Update / Microsoft Update. Servers which have opted in to WU / MU servicing will automatically get this new behavior at that time. A few months ago we announced the availability of the.NET Framework 4.5.2, a highly compatible, in-place update to the.NET 4.x family (.NET 4, 4.5, and 4.5.1). The.NET Framework 4.5.2 was released only a few short months after the release of.NET 4.5.1 and gives you the benefits of the greater stability. The Mono team is integrating Microsoft's reference source and Mono is being currently built using one profile, net4x, with contract assemblies for the other profiles. Mono 4.2.0 Alpha: While Microsoft is working towards.NET Core: a redistributable and re-imagined version of.NET, the project remains a work in progress. Jul 10, 2017 The.NET Framework, Explained. The name “.NET Framework” itself is a bit of a misnomer. A framework (in programming terms) is really a collection of Application Programming Interfaces (APIs) and a shared library of code that developers can call when developing applications, so that they don’t have to write the code from scratch.

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If you are migrating from the .NET Framework 4.5 to 4.5.2, review the following topics for application compatibility issues that may affect your app:

ADO.NET

ADO.NET now attempts to automatically reconnect broken SQL connections

Details	Beginning in the .NET Framework 4.5.1, the .NET Framework will attempt to automatically reconnect broken SQL connections. Although this will typically make apps more reliable, there are edge cases in which an app needs to know that the connection was lost so that it can take some action upon reconnection.
Suggestion	If this feature is undesirable due to compatibility concerns, it can be disabled by setting the ConnectRetryCount property of a connection string (or SqlConnectionStringBuilder) to 0.
Scope	Edge
Version	4.5.1
Type	Runtime
Affected APIs

ASP.NET

ASP.NET MVC now escapes spaces in strings passed in via route parameters

Details	In order to conform to RFC 2396, spaces in route paths are now escaped when populating action parameters from a route. So, whereas `/controller/action/some data` would previously match the route `/controller/action/{data}` and provide `some data` as the data parameter, it will now provide `some%20data` instead.
Suggestion	Code should be updated to unescape string parameters from a route. If the original URI is needed, it can be accessed with the RequestUri.OriginalString API.
Scope	Minor
Version	4.5.2
Type	Runtime
Affected APIs

No longer able to set EnableViewStateMac to false

Details	ASP.NET no longer allows developers to specify `<pages enableViewStateMac='false'/>` or `<@Page EnableViewStateMac='false' %>`. The view state message authentication code (MAC) is now enforced for all requests with embedded view state. Only apps that explicitly set the EnableViewStateMac property to `false` are affected.
Suggestion	EnableViewStateMac must be assumed to be true, and any resulting MAC errors must be resolved (as explained in this guidance, which contains multiple resolutions depending on the specifics of what is causing MAC errors).
Scope	Major
Version	4.5.2
Type	Runtime

Profiling ASP.Net MVC4 apps can lead to Fatal Execution Engine Error

Details	Profilers using NGEN /Profile assemblies may crash profiled ASP.NET MVC4 applications on startup with a 'Fatal Execution Engine Exception'
Suggestion	This issue is fixed in the .NET Framework 4.5.2. Alternatively, the profiler may avoid this issue by specifying `COR_PRF_DISABLE_ALL_NGEN_IMAGES` in its event mask.
Scope	Edge
Version	4.5
Type	Runtime

Core

A ConcurrentDictionary serialized in .NET Framework 4.5 with NetDataContractSerializer cannot be deserialized by .NET Framework 4.5.1 or 4.5.2

Details	Due to internal changes to the type, ConcurrentDictionary<TKey,TValue> objects that are serialized with the .NET Framework 4.5 using the NetDataContractSerializer cannot be deserialized in the .NET Framework 4.5.1 or in the .NET Framework 4.5.2.Note that moving in the other direction (serializing with the .NET Framework 4.5.x and deserializing with the .NET Framework 4.5) works. Similarly, all 4.x cross-version serialization works with the .NET Framework 4.6.Serializing and deserializing with a single version of the .NET Framework is not affected.
Suggestion	If it is necessary to serialize and deserialize a ConcurrentDictionary<TKey,TValue> between the .NET Framework 4.5 and .NET Framework 4.5.1/4.5.2, an alternate serializer like the DataContractSerializer or BinaryFormatter serializer should be used instead of the NetDataContractSerializer.Alternatively, because this issue is addressed in the .NET Framework 4.6, it may be solved by upgrading to that version of the .NET Framework.
Scope	Minor
Version	4.5.1
Type	Runtime

ConcurrentQueue<T>.TryPeek can return an erroneous null via its out parameter

Details	In some multi-threaded scenarios, TryPeek(T) can return true, but populate the out parameter with a null value (instead of the correct, peeked value).
Suggestion	This issue is fixed in the .NET Framework 4.5.1. Upgrading to that Framework will solve the issue.
Scope	Major
Version	4.5
Type	Runtime
Affected APIs

COR_PRF_GC_ROOT_HANDLEs are not being enumerated by profilers

Microsoft Net Framework 4.5 2 For Mac 1

Details	In the .NET Framework v4.5.1, the profiling API `RootReferences2()` is incorrectly never returning `COR_PRF_GC_ROOT_HANDLE` (they are returned as `COR_PRF_GC_ROOT_OTHER` instead). This issue is fixed beginning in the .NET Framework 4.6.
Suggestion	This issue has been fixed in the .NET Framework 4.6 and may be addressed by upgrading to that version of the .NET Framework.
Scope	Minor
Version	4.5.1
Type	Runtime

Deserialization of objects across appdomains can fail

Details	In some cases, when an app uses two or more app domains with different application bases, trying to deserialize objects in the logical call context across app domains throws an exception.
Suggestion	See Mitigation: Deserialization of Objects Across App Domains
Scope	Edge
Version	4.5.1
Type	Runtime

EventListener truncates strings with embedded nulls

Details	EventListener truncates strings with embedded nulls. Null characters are not supported by the EventSource class. The change only affects apps that use EventListener to read EventSource data in process and that use null characters as delimiters.
Suggestion	EventSource data should be updated, if possible, to not use embedded null characters.
Scope	Edge
Version	4.5.1
Type	Runtime
Affected APIs

EventSource.WriteEvent impls must pass WriteEvent the same parameters that it received (plus ID)

Details	The runtime now enforces the contract that specifies the following: A class derived from EventSource that defines an ETW event method must call the base class `EventSource.WriteEvent` method with the event ID followed by the same arguments that the ETW event method was passed.
Suggestion	An IndexOutOfRangeException exception is thrown if an EventListener reads EventSource data in process for an event source that violates this contract.
Scope	Minor
Version	4.5.1
Type	Runtime

Marshal.SizeOf and Marshal.PtrToStructure overloads break dynamic code

Microsoft Dot Net 4.5.2 Framework

Details	Beginning in the .NET Framework 4.5.1, dynamically binding to the methods SizeOf<T>(), SizeOf<T>(T), PtrToStructure(IntPtr, Object), PtrToStructure(IntPtr, Type), PtrToStructure<T>(IntPtr), or PtrToStructure<T>(IntPtr, T), (via Windows PowerShell, IronPython, or the C# dynamic keyword, for example) can result in `MethodInvocationExceptions` because new overloads of these methods have been added that may be ambiguous to the scripting engines.
Suggestion	Update scripts to clearly indicate which overload should be used. This can typically done by explicitly casting the methods' type parameters as Type. See this link for more detail and examples of how to workaround the issue.
Scope	Minor
Version	4.5.1
Type	Runtime

Some .NET APIs cause first chance (handled) EntryPointNotFoundExceptions

Details	In the .NET Framework 4.5, a small number of .NET methods began throwing first chance EntryPointNotFoundExceptions. These exceptions were handled within the .NET Framework, but could break test automation that did not expect the first chance exceptions. These same APIs break some ApiVerifier scenarios when HighVersionLie is enabled.
Suggestion	This bug can be avoided by upgrading to .NET Framework 4.5.1. Alternatively, test automation can be updated to not break on first-chance EntryPointNotFoundExceptions.
Scope	Edge
Version	4.5
Type	Runtime
Affected APIs

Microsoft .net 4 5 2

WinRT stream adapters no long call FlushAsync automatically on close

Details	In Windows Store apps, Windows Runtime stream adapters no longer call the FlushAsync method from the Dispose method.
Suggestion	This change should be transparent. Developers can restore the previous behavior by writing code like this:
Scope	Transparent
Version	4.5.1
Type	Runtime

Data

ADO.NET now attempts to automatically reconnect broken SQL connections

Details	Beginning in the .NET Framework 4.5.1, the .NET Framework will attempt to automatically reconnect broken SQL connections. Although this will typically make apps more reliable, there are edge cases in which an app needs to know that the connection was lost so that it can take some action upon reconnection.
Suggestion	If this feature is undesirable due to compatibility concerns, it can be disabled by setting the ConnectRetryCount property of a connection string (or SqlConnectionStringBuilder) to 0.
Scope	Edge
Version	4.5.1
Type	Runtime
Affected APIs

SqlConnection.Open fails on Windows 7 with non-IFS Winsock BSP or LSP present

Details	Open() and OpenAsync(CancellationToken) fail in the .NET Framework 4.5 if running on a Windows 7 machine with a non-IFS Winsock BSP or LSP are present on the computer.To determine whether a non-IFS BSP or LSP is installed, use the `netsh WinSock Show Catalog` command, and examine every `Winsock Catalog Provider Entry` item that is returned. If the Service Flags value has the `0x20000` bit set, the provider uses IFS handles and will work correctly. If the `0x20000` bit is clear (not set), it is a non-IFS BSP or LSP.
Suggestion	This bug has been fixed in the .NET Framework 4.5.2, so it can be avoided by upgrading the .NET Framework. Alternatively, it can be avoided by removing any installed non-IFS Winsock LSPs.
Scope	Minor
Version	4.5
Type	Runtime
Affected APIs

Microsoft Net Framework 4.5 2 For Mac Os

Entity Framework

EF no longer throws for QueryViews with specific characteristics

Details	Entity Framework no longer throws a StackOverflowException exception when an app executes a query that involves a QueryView with a 0.1 navigation property that attempts to include the related entities as part of the query. For example, by calling `.Include(e => e.RelatedNavProp)`.
Suggestion	This change only affects code that uses QueryViews with 1-0.1 relationships when running queries that call .Include. It improves reliability and should be transparent to almost all apps. However, if it causes unexpected behavior, you can disable it by adding the following entry to the `<appSettings>` section of the app's configuration file:
Scope	Edge
Version	4.5.2
Type	Runtime

Opt-in break to revert from different 4.5 SQL generation to simpler 4.0 SQL generation

Details	Queries that produce JOIN statements and contain a call to a limiting operation without first using OrderBy now produce simpler SQL. After upgrading to .NET Framework 4.5, these queries produced more complicated SQL than previous versions.
Suggestion	This feature is disabled by default. If Entity Framework generates extra JOIN statements that cause performance degradation, you can enable this feature by adding the following entry to the `<appSettings>` section of the application configuration (app.config) file:
Scope	Transparent
Version	4.5.2
Type	Runtime

Serialization

NetDataContractSerializer fails to deserialize a ConcurrentDictionary serialized with a different .NET version

Details	By design, the NetDataContractSerializer can be used only if both the serializing and deserializing ends share the same CLR types. Therefore, it is not guaranteed that an object serialized with one version of the .NET Framework can be deserialized by a different version.ConcurrentDictionary<TKey,TValue> is a type that is known to not to deserialize correctly if serialized with the .NET Framework 4.5 or earlier and deserialized with the .NET Framework 4.5.1 or later.
Suggestion	There are a number of possible work-arounds for this issue: Upgrade the serializing computer to use the .NET Framework 4.5.1, as well. Use DataContractSerializer instead of NetDataContractSerializer as this does not expect the exact same CLR types at both serializing and deserializing ends. Use Dictionary<TKey,TValue> instead of ConcurrentDictionary<TKey,TValue> since it does not exhibit this particular 4.5->4.5.1 break.
Scope	Minor
Version	4.5.1
Type	Runtime
Affected APIs

Windows Communication Foundation (WCF)

MinFreeMemoryPercentageToActiveService is now respected

Details	This setting establishes the minimum memory that must be available on the server before a WCF service can be activated. It is designed to prevent OutOfMemoryException exceptions. In the .NET Framework 4.5, this setting had no effect. In the .NET Framework 4.5.1, the setting is observed.
Suggestion	An exception occurs if the free memory available on the web server is less than the percentage defined by the configuration setting. Some WCF services that successfully started and ran in a constrained memory environment may now fail.
Scope	Minor
Version	4.5.1
Type	Runtime

Windows Presentation Foundation (WPF)

Calling DataGrid.CommitEdit from a CellEditEnding handler drops focus

Details	Calling CommitEdit() from one of the DataGrid's CellEditEnding event handlers causes the DataGrid to lose focus.
Suggestion	This bug has been fixed in the .NET Framework 4.5.2, so it can be avoided by upgrading the .NET Framework. Alternatively, it can be avoided by explicitly re-selecting the DataGrid after calling CommitEdit().
Scope	Edge
Version	4.5
Type	Runtime
Affected APIs

Intermittently unable to scroll to bottom item in ItemsControls (like ListBox and DataGrid) when using custom DataTemplates

Details	In some instances, a bug in the .NET Framework 4.5 is causing ItemsControls (like ListBox, ComboBox, DataGrid, etc.) to not scroll to their bottom item when using custom DataTemplates. If the scrolling is attempted a second time (after scrolling back up), it will work then.
Suggestion	This issue has been fixed in the .NET Framework 4.5.2 and may be addressed by upgrading to that version (or a later version) of the .NET Framework. Alternatively, users can still drag scroll bars to the final items in these collections, but may need to try twice to do so successfully.
Scope	Minor
Version	4.5
Type	Runtime

Scrolling a WPF TreeView or grouped ListBox in a VirtualizingStackPanel can cause a hang

Details	In the .NET Framework v4.5, scrolling a WPF TreeView in a virtualized stack panel can cause hangs if there are margins in the viewport (between the items in the TreeView, for example, or on an ItemsPresenter element). Additionally, in some cases, different sized items in the view can cause instability even if there are no margins.
Suggestion	This bug can be avoided by upgrading to .NET Framework 4.5.1. Alternatively, margins can be removed from view collections (like TreeViews) within virtualized stack panels if all contained items are the same size.
Scope	Major
Version	4.5
Type	Runtime
Affected APIs

WPF spawns a wisptis.exe process which can freeze the mouse

Details	An issue was introduced in 4.5.2 that causes `wisptis.exe` to be spawned that can freeze mouse input.
Suggestion	A fix for this issue is available in a servicing release of the .NET Framework 4.5.2 (hotfix rollup 3026376), or by upgrading to the .NET Framework 4.6
Scope	Major
Version	4.5.2
Type	Runtime

The PC version of SketchUp Pro requires the Microsoft .NET Framework 4.5.2. During install, SketchUp will detect if the correct version of the .NET Framework is missing and will prompt you to download and install the package. Click the 'Yes' button to install the package. Due to file size, we suggest downloading the .NET Framework using a broadband connection or faster. If you're using a dial-up connection, please be aware that downloading will take some time.

At this time, SketchUp Pro requires version 4.5.2 or higher of the .NET Framework. If your computer has a lower version of the .NET Framework installed, you'll be asked to download version 4.5.2. Multiple versions of the .NET Framework can co-exist on your computer without interfering with SketchUp Pro.

You can download the standalone Microsoft .NET Framework 4.5.2 installer from their site directly here.