ASP.NET 4.5 and IIS 8 include low-level WebSockets support, enabling ASP.NET developers to use managed APIs for asynchronously reading and writing both string and binary data on a WebSockets object. For ASP.NET 4.5, there is a new System.Web.WebSockets namespace that contains types for working with WebSockets protocol. May 20, 2019  PreSonus® is now shipping Studio One® 4.5, a major update to its powerful yet easy-to-use recording and production software. With more than 70 new features and improvements, this free update for Studio One 4 users adds several of the most requested features from the Studio One user community.

• Studio One 4.5 Manual
• Studio One 4.5 Download

I was not actually aware .NET 4.5.2 had been released, but Microsoft put up a post on MSDN outlining the major changes in .NET 4.5.2. I have seen a number of developers complaining about the lack of forms support in .NET. If you’re a .NET developer let us know your thoughts on this release in the comments below.

• New APIs for ASP.NET apps. The new HttpResponse.AddOnSendingHeaders and HttpResponseBase.AddOnSendingHeaders methods let you inspect and modify response headers and status code as the response is being flushed to the client app. Consider using these methods instead of thePreSendRequestHeaders and PreSendRequestContent events; they are more efficient and reliable.

  The HostingEnvironment.QueueBackgroundWorkItem method lets you schedule small background work items. ASP.NET tracks these items and prevents IIS from abruptly terminating the worker process until all background work items have completed. This method can’t be called outside an ASP.NET managed app domain.

  The new HttpResponse.HeadersWritten and HttpResponseBase.HeadersWritten properties return Boolean values that indicate whether the response headers have been written. You can use these properties to make sure that calls to APIs such as HttpResponse.StatusCode (which throw exceptions if the headers have been written) will succeed.

• Resizing in Windows Forms controls. This feature has been expanded. You can now use the system DPI setting to resize components of the following additional controls (for example, the drop-down arrow in combo boxes):

  ComboBox
  ToolStripComboBox
  ToolStripMenuItem
  Cursor
  DataGridView
  DataGridViewComboBoxColumn

  This is an opt-in feature. To enable it, set the EnableWindowsFormsHighDpiAutoResizing element to true in the application configuration (app.config) file:

• New workflow feature. A resource manager that’s using the EnlistPromotableSinglePhase method (and therefore implementing theIPromotableSinglePhaseNotification interface) can use the new Transaction.PromoteAndEnlistDurable method to request the following:

  • Promote the transaction to a Microsoft Distributed Transaction Coordinator (MSDTC) transaction.

  • Replace IPromotableSinglePhaseNotification with an ISinglePhaseNotification, which is a durable enlistment that supports single phase commits.

  This can be done within the same app domain, and doesn’t require any extra unmanaged code to interact with MSDTC to perform the promotion. The new method can be called only when there’s an outstanding call from System.Transactions to the IPromotableSinglePhaseNotificationPromote method that’s implemented by the promotable enlistment.

• Profiling improvements.

  Previous ICorProfiler implementations supported lazy loading of dependent assemblies. The new profiling APIs require dependent assemblies that are injected by the profiler to be loadable immediately, instead of being loaded after the app is fully initialized. This change doesn’t affect users of the existing ICorProfiler APIs.

• Debugging improvements. The following new unmanaged debugging APIs provide better integration with a profiler. You can now access metadata inserted by the profiler as well as local variables and code produced by compiler ReJIT requests when dump debugging.

  Event tracing changes. The .NET Framework 4.5.2 enables out-of-process, Event Tracing for Windows (ETW)-based activity tracing for a larger surface area. This enables Advanced Power Management (APM) vendors to provide lightweight tools that accurately track the costs of individual requests and activities that cross threads. These events are raised only when ETW controllers enable them; therefore, the changes don’t affect previously written ETW code or code that runs with ETW disabled.

Studio One 4.5 Manual

Studio One 4.5 Download

Source: Microsoft Developer Network

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