Microsoft .NET Framework 3.5 SP1-4.7.1 正式版-微软官网发布版本

.NET Framework 是由 Microsoft 开发的一种全面且一致的编程模型，用于生成具有视觉震撼力的用户体验、无缝的安全通信和对一系列业务流程进行建模的能力的应用程序。.NET Framework 4 将与旧的 Framework 版本并行工作。 默认情况下，基于早期版本的 Framework 的应用程序将继续在目标版本上运行。
微软刚刚发布了 .NET Framework 4.7，主要是带来了对 Windows 10“创作者更新”的支持，开发者们可以通过 Visual Studio 2017 进行最新版 .NET Framework 项目的开发。
.NET Framework 4.7 包含了以下几大改进：
（1）加入对 Windows 10 表格应用程序的高 DPI 支持；
（2）加入对 Win10 平台 WPF 应用程序的触控支持；
（3）增强加密支持；
（4）性能与可靠性改进。
为获得最佳体验，微软推荐开发者们先升级至最新版 Windows 10（即“创作者更新”），然后再为 Visual Studio 安装该更新。
Microsoft .NET Framework 4 提供了以下新功能和改进：
1.公共语言运行时 (CLR) 和基类库 (BCL) 的改进
（1）性能改进，包括更好的多核心支持、后台垃圾回收和服务器上的探查器附加。
（2）新的内存映射文件和数字类型。
（3）更轻松的调试，包括转储调试、Watson 小型转储、64 位的混合模式调试和代码协定。
（4）有关 CLR 和 BCL 的增强功能的完整列表，请转到此处。
2.Visual Basic 和 C# 语言中的创新，例如 lambda 语句、隐式行继续符、动态调度和命名/可选参数。
3.数据访问和建模的改进
（1）利用 Entity Framework，开发人员可使用 .NET 对象和语言集成查询 (LINQ) 对关系数据库进行编程。 它具有多项新功能，包括持久性忽略和 POCO 支持、外键关联、延迟加载、测试驱动开发支持、模型中的函数和新的 LINQ 运算符。 其他功能包括：带自跟踪实体的更好的 n 层支持、使用 T4 模板的可自定义的代码生成、模型首次开发、改进的设计器体验、更好的性能以及实体集的复数形式。
（2）WCF 数据服务是 .NET Framework 的一个组件，可以利用此服务创建基于 REST 的服务和应用程序，以便使用开放式数据协议 (OData) 在 Web 上公开和使用数据。 WCF 数据服务具有多项新功能，包括增强的 BLOB 支持、数据绑定、行计数、源自定义、投影和请求管道改进。 当前与 Microsoft Office 2010 的内置集成可将 Microsoft Office SharePoint Server 数据作为一个 OData 源公开，并使用 WCF 数据服务客户端库访问该数据源。
4.ASP.NET 的增强功能
（1）对 HTML、元素 ID 和自定义 CSS 的更多控制，通过这些控制可更轻松地创建符合标准且 SEO 友好的 Web 窗体。
新的动态数据功能，包括新的查询筛选器、实体模板、对 Entity Framework 4 的更丰富的支持以及可轻松应用于现有 Web 窗体的验证和模板化功能。
（1）针对新的 AJAX 库改进的 Web 窗体支持，包括对内容传递网络 (CDN) 的内置支持。有关 ASP.NET 增强功能的完整列表，请转到此处。
5.Windows Presentation Foundation (WPF) 的改进
（1）添加对 Windows 7 多点触控、功能区控件和任务栏扩展性功能的支持。
（2）添加了对 Surface 2.0 SDK 的支持。
（3）新的业务线控件，包括图表控件、智能编辑、数据网格以及其他用于改进生成以数据为中心的应用程序的开发人员体验的控件。
（4）性能和伸缩性的改进。
（5）文本清晰度、布局像素对齐、本地化和互操作性的可视化改进
6.Windows 工作流 (WF) 的改进，利用这些改进，开发人员能够更好地承载工作流并与其进行交互。 这些改进包括：改进的活动编程模型、改进的设计器体验、新的流程图建模样式、展开的活动面板、工作流规则集成和新的消息相关功能。 .NET Framework 4 还显著提高了基于 WF 的工作流的性能。
7.Windows Communication Foundation (WCF) 的改进，例如对 WCF 工作流服务的支持（可启用带消息传递活动的工作流程序）和相关支持。 此外，.NET Framework 4 还提供了新的 WCF 功能，如服务发现、路由服务、REST 支持、诊断和性能。
8.创新的新并行编程功能，例如并行循环支持、任务并行库 (TPL)、并行 LINQ (PLINQ) 和协调数据结构（可让开发人员利用多核处理器）。
支持的操作系统：
Windows Server 2016，Windows 10，Windows 8/8.1，Windows 7, Windows 7 Service Pack 1, Windows Server 2003 Service Pack 2, Windows Server 2008, Windows Server 2008 R2, Windows Server 2008 R2 SP1, Windows Vista Service Pack 1, Windows XP Service Pack 3
特别说明：
注意：Windows 8 和 Windows Server 2012 包括 .NET Framework 4.5。因此，您不必在这些操作系统上安装此软件。
4.7 更新记录：
NET Framework 4.7 contains dozens of bug fixes and improvements. This list details those changes, grouped by feature area. Each change includes our TFS bug numbers at the end of the line. Please include those numbers in your communication if you wish to contact us to obtain more information.
CLR:
Fixed buffer overflows with large manifests in EventSource.
If a COM interface contain setter only indexed property, Tlbimp will generate incorrect setter property metadata.
Implemented IEnumerator in EventPayload (EventSource).
JIT performance improvements
Improved performance of creating large numbers of TaskSchedulers when a debugger isn’t attached.
EventSourceIndex method is now public.
Support for ToEventKeywords() method instead of working with keywords directly.
Fixed NGen Task to respect battery saver setting.
Fixed a bug where null paths would not throw ArgumentNullException.
Added the case of Wrong machine code generated by RyuJIT on AVX2-capable CPU to the list of instructions that have this characteristic.
Implemented flexibility in specifying Server GC resource consumption.
BCL:
Opening a cryptographic key with CspParameters.ParentWindowHandle set to this.Handle will now correctly make any PIN or password prompt be modal to the current window
Added ValueTuple types to support C# 7.0 and VB 15 tuples
Added Name property to Regex.Group.
Fixed InvalidPath exception when using FileIOPermissions with device syntax (?),
ECDsa and ECDiffieHellman can now import and export key parameters (all OSes) as well as represent points over an expanded set of curves (Win10).
Fixed an issue in SerialPort where unplugging the device during execution could cause a memory leak in the SerialStream class.
Improved support of RSA decryption with hardware keys
Networking:
ServicePointManager.SecurityProtocol will default to a new value: SystemDefault which allows applications to use the underlying operating system TLS version selection defaults. New SslStreamAuthenticateAs APIs allow applications to omit the SslProtocols parameter and use the system default. New HashAlgorithmType enum members.
Added support for the TLS Alert Protocol
Updated HttpListener to handle improvements to the token binding protocol.
Fixed pointer offset calculation in HttpListener for token binding struct.
ASP.NET:
Allows for extensibility of the cache providers that could allow them to operate on new services with less overhead from memory usage.
Introduced a new config parameter ‘timeoutUnit’ for ActiveDirectoryMembershipProvider that can be used to indicate the ‘clientSearchTimeout’ and ‘serverSearchTimeout’ values. These should be interpreted as Days/Hours/Minutes/Seconds/Milliseconds. If not specified, the default is Minutes, as was the previous behavior.
Customer will see a warning in the windows event log if they have specified to use unsecured password formats in their web application.
Fixed assignment issue with max-age value for OutputCache.
Fixed an issue with exception handling for custom membership provider scenario.
WPF:
WPF now uses PrintDocumentPackageTarget instead of the deprecated XpsPrint API.
Fixed crash in WPF when typing in text with specific language input
The escape sequences have been unescaped in the URLs while converting from XAML to RTF.
Fixed crash in DocumentView when receiving input from IMEs.
Fixed ribbon crash when Alt + accelerator key is pressed to display the submenu.
Previously, large amounts of connects and disconnects of tablet/stylus devices could result in WPF losing all touch support except for promoted mouse messages. This was due to a reference counting issue within WPF and its Windows side touch component (WISP). This change, along with the associated WISP change available in RS2, fixes this situation allowing large numbers of connects and disconnects.
Conversion of BaselineOffset property has been added while converting from XAML to RTF and vice versa.
Modernize touch stack
Fixed crashes in Combobox
Added support for alternative delimiter characters in markup.
Fixed textbox focus issues
Fixed out of memory issues with custom textbox.
In some scenarios, shutting down input for a stylus/touch device (program shutdown or device disconnection) could result in a deadlock. This change alleviates that issue by fixing a timing problem with the WPF stylus/tablet initialization and shutdown code.
In order to disable the WPF stylus/touch stack developers were previously using a private reflection mechanism. This provides a new mechanism in the form of an AppContext switch. Switch.System.Windows.Input.Stylus.DisableStylusAndTouchSupport set to true will fully disable the stylus/touch stack without requiring any private reflection or other workarounds.
Inheritable properties propagate through a new link in the visual tree, including properties declared in a Style newly enabled by the link because a DynamicResource reference now resolves.
ImageSourceConverter.ConvertFromString now throws the correct DirectoryNotFoundException instead of NullReferenceException if called with an invalid path (only on apps targeting .NET Framework 4.7 and above)
Fixed IOException crashes arising from Cursor.LoadFromStream, that could happen on application start.
Fixed a deadlock arising from re-entrant COM requests while waiting for the lock protecting WPF’s weak-event component.
Scroll tracing now supports scenarios involving multiple instances of an ItemsControl with the same name, that enter and leave the visual tree dynamically.
Some ItemsControls allow null to appear in the ItemsSource. If so, the automation for the control should allow null as well. An app that works in a normal environment should not crash in when automation is present.
Fixed an ArgumentException arising from bindings on a non-Visual element declared in a DataGrid cell template.
Improved Grid algorithm usages to allocate space to columns declared with *-width. For details refer to Application compatibility changes.
Fixed crash arising from displaying certain sequences of Unicode characters deemed (by the font and by DWrite) to have negative advance width.
Fixed a crash arising when running two instances of a process that creates multiple large packages when using System.IO.Packaging.
When an exception interrupts a PropertyChanged or Collectionchanged notification raised on a worker thread, other such notifications continue to be processed normally.
Fixed D3DImage memory leak.
Fixed crashes in DataGrid with column virtualization enabled scenario.
Improved reliability of anchored scroll scenarios.
Support for Async and AddJob scenarios in printing.
The content of the selected item in a TabControl is visible to UI Automation, even after changing IsEnabled (or other properties) on the TabItems.
WCF:
Fixed a bug in SocketConnection.Read which caused the operation to hang when mixing synchronous and asynchronous calls.
Support for CNG certificates. For details refer to Application compatibility changes.
Support for DataContractJsonSerializer to follow ECMAScript 6 when serializing control character.
Fixed process crash in concurrent Dictionary scenario
Fixed a race condition on the cleanup path of WCF Tracing that caused an ObjectDisposedException.
Enabled WCF message security configuration to use TLS1.1 or TLS1.2. For details refer to Application compatibility changes.
Fixed a bug in OperationContext.Current which caused it to return null when called inside an OperationContextScope
Ensure no deadlock occurs when two threads try to abort the channel.
Workflow:
Support for propagating an activity exception as-is instead of throwing a Null Reference Exception. For details refer to Application compatibility changes.
Previously when trying to use Visual Studio to debug XAML-based workflows on a machine with FIPS enabled, one would encounter a NullReferenceException. This has been resolved. However, in order to take advantage of this change, you will need to add the following to the App.Config file for the workflow application:

For details refer to Application compatibility changes.
SqlWorkflowInstanceStore database now defines Primary Key columns, allowing transactional replication.
Windows Forms:
Fixed dialog layout for High DPI scenarios
Enabled ClickOnce signing scenarios where certificate is identified by a cryptographic provider and private key container names.
Docked ListBox controls will now revert to their correct size in the designer when the Dock property is changed to DockStyle.None in the property browser.
Fixed properly scaling across dialog control elements, including control padding and sizes in High DPI scenarios.
Fixed text clipping in localized versions of .NET SDK tool MageUI.exe.
Fixed IndexOutOfRangeException.
Fixed clipped buttons in WinRes.exe .Net SDK tool
Fixed crashes in Windows Forms Designer that happened when the Windows theme was changed.
Fixed an issue in the Windows Forms designer where under some circumstances selecting a ContextMenuStrip causes Visual Studio to crash.
Improved reliability of ToolTip control.
Fixed reliability issue with ShowPropertyBrowser and Controls
Changed the background color of property grid lines to provide an 8:1 contrast ratio for high contrast themes.
Improved reliability of the Windows Forms DataGrid control.
Fixed control height scaling issues in DPI mode
Fixed toolstrip scaling issues in DPI mode
Fixed case-insensitivity issues with command line arguments in mage.exe .NET SDK tool.
High DPI support for winforms applications via app.config file.
Fixed for the proper placement of anchored controls.
Fixed control text truncations issue in a Visual Studio dialog.
Enable per-monitor scaling in DPI mode
SQL:
Fixed TransparentNetworkIPResolution (TNIR) Connectivity issues.
SQL Client now uses TCP as the default protocol for connections to Azure SQL Database. Previously, SQL Client tried every protocol including viz, Shared Memory, TCP, and Named Pipes to establish a connection to Azure SQL Database, which only supports TCP connections.
ClickOnce:
Fixed store corruption in ClickOnce application.
Added the ability to sign a manifest file via a Hardware-Security Module (HSM) to Mage.exe and MageUI.exe
Microsoft .NET Framework 4.7.1 Final 简体中文中文语言包
https://download.microsoft.com/download/D/E/7/DE749C65-F6F2-41B6-99A9-56874A0D8E37/NDP471-KB4033342-x86-x64-AllOS-CHS.exe
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