Microsoft's release notes highlights for Preview 3 include:
- Visual Studio now offers .NET Framework 4.7.2 development tools to supported platforms with 4.7.2 runtime included.
- We improved performance during project unload/reload and branch switching.
- With added support for Azure Functions, you now have a new target host in the Configure Continuous Delivery to Azure dialog.
- Git and TFS status now updates properly for external file changes in .NET Core projects.
- We added new productivity features, such as code cleanup, invert-if refactoring, Go to Enclosing Block, Multi-Caret support, and new keyboard profiles.
- C++ enhancements include Template IntelliSense, convert macro to constexpr lightbulbs, and experimental in-editor code analysis squiggles.
- You can now use cross-language debugging with Python 3.7.0rc1.
- Performance Profiling now offers the ability to pause/resume data collection and adds a new .NET Object Allocation Tracking tool.
- We included improvements for Android incremental builds in the Xamarinsupport for Xcode 9.4.
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