• Team Explorer - Changes: panel not sizing to the Team Explorer window.
• Visual Studio 2017 SQL Server Object Explorer server list not persisting .
• intellisense problems with linux-x64 mode.
• Index was out of range. Must be non-negative and less than the size of the collection.Parameter name: index.
• Visual Studio 2017 UNDO does not work/stops working (reported AGAIN!!!!).
• Intellisense not working for files created under WSL.
• Intellisense error: C++11 static constexpr member initialization causes "member may not be initialized".
• VS doesn't restore windows position when switching in/out of debug.
• Third party toolbox items are reloaded every time VS2019 Preview 2.2 is started.
• 'Set as StartUp Project' crashes the IDE after updating to VS2019 Preview Release 3.
• Visual Studio 2019 building Visual Studio 2017 C++ projects fail.
• Fixed Toolbox refresh issue.
• Toolbox controls are making vssettings file too big.
• SSDT: Fix for Login failed errors when performing a New Data comparison function .
• SSDT: Fix for Source is Unavailable error when performing Schema Compare .
• SSDT: Fix for Schema Compare Generate Script does not generate script .
• SSDT: Fix to improve performance of loading solutions with multiple projects.
• SSDT: Fix for SQL files not always being deleted when performing a Schema Compare between a database and a project and a delete table is executed subsequently.
• SSDT: Accessibility fixes to improve narration capabilities.
• SSDT: Replaced older sqlncli driver with new Microsoft ODBC Driver for SQL Server. 

Today we're thrilled to announce the release of ASP.NET Core 2.1.0! This is the latest release of our open-source and cross-platform web framework for .NET and it's now ready for production use. 

Installing .NET 6 (alpha) on your M1 Mac 

These are the customer-reported issues addressed in 15.7.1:

• This release includes a fix that reduces memory usage and GC pressure during solution load.

Microsoft Security Advisory for .NET Core Denial Of Service Vulnerability

CVE-2018-0765

Microsoft is releasing this security advisory to provide information about a vulnerability in .NET Core and .NET native version 2.0. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.

Microsoft is aware of a denial of service vulnerability that exists when .NET Framework and .NET Core improperly process XML documents. An attacker who successfully exploited this vulnerability could cause a denial of service against a .NET Framework, .NET Core, or .NET native application.

The update addresses the vulnerability by correcting how .NET Framework, .NET Core, and .NET native applications handle XML document processing.

If your application is an ASP.NET Core application, developers are also advised to update to ASP.NET Core 2.0.8. 

.NET Core 3.0 is supported with Visual Studio 2019 16.3 Preview 3 and Visual Studio for Mac 8.3, which were also released today.  

The following improvements are in Preview 1:

• Regular expression performance improvements (3-6x Faster)
• Code quality improvements in RyuJIT
• Assembly load diagnostics added to event pipe
• Event pipe profiler APIs
• .... 

Installing Visual Studio 2019 16.4 will also install .NET Core 3.1 Preview 3, so you don’t need to separately install it. For Blazor development with .NET Core 3.1, Visual Studio 2019 16.4 is required. 

This preview includes more than 50 bug fixes and functional enhancements. You can query our issue tracker for the full list of issues fixed in Preview 4, as well as for the issues fixed in Preview 3, and Preview 2. 

Today we are making EF Core 2.2 Preview 3 available, together with a new preview of our data provider for Cosmos DB and updated spatial extensions for various providers.