Windows 10 SDK Preview Build 17677 released.
Things to note:
- This build works in conjunction with previously released SDKs and Visual Studio 2017. You can install this SDK and still also continue to submit your apps that target Windows 10 Creators build or earlier to the store.
- The Windows SDK will now formally only be supported by Visual Studio 2017 and greater.
- This build of the Windows SDK will install on Windows 10 Insider Preview and supported Windows operating systems.
Installation on an operating system that is not a Windows 10 Insider Preview build is not supported and may fail.
Windows Device Portal
Please note that there is a known issue in this Windows Insider build that prevents the user from enabling Developer Mode through the For developers settings page.
Unfortunately, this means that you will not be able to remotely deploy a UWP application to your PC or use Windows Device Portal on this build. There are no known workarounds at the moment. Please skip this flight if you rely on these features.
Missing Contract File
The contract Windows.System.SystemManagementContract is not included in this release. In order to access the following APIs, please use a previous Windows IoT extension SDK with your project. This bug will be fixed in a future preview build of the SDK.
The following APIs are affected by this bug:
API Spot Light:
Check out LauncherOptions.GroupingPreference.
This release contains the new LauncherOptions.GroupingPreference property to assist your app in tailoring its behavior for Sets. Watch the presentation here.
We’ve made some important changes to the C/C++ ETW code generation of mc.exe (Message Compiler):
The “-mof” parameter is deprecated. This parameter instructs MC.exe to generate ETW code that is compatible with Windows XP and earlier. Support for the “-mof” parameter will be removed in a future version of mc.exe.
As long as the “-mof” parameter is not used, the generated C/C++ header is now compatible with both kernel-mode and user-mode, regardless of whether “-km” or “-um” was specified on the command line. The header will use the _ETW_KM_ macro to automatically determine whether it is being compiled for kernel-mode or user-mode and will call the appropriate ETW APIs for each mode.
- The only remaining difference between “-km” and “-um” is that the EventWrite[EventName] macros generated with “-km” have an Activity ID parameter while the EventWrite[EventName] macros generated with “-um” do not have an Activity ID parameter.
The EventWrite[EventName] macros now default to calling EventWriteTransfer (user mode) or EtwWriteTransfer (kernel mode). Previously, the EventWrite[EventName] macros defaulted to calling EventWrite (user mode) or EtwWrite (kernel mode).
- The generated header now supports several customization macros. For example, you can set the MCGEN_EVENTWRITETRANSFER macro if you need the generated macros to call something other than EventWriteTransfer.
- The manifest supports new attributes.
- Event “name”: non-localized event name.
- Event “attributes”: additional key-value metadata for an event such as filename, line number, component name, function name.
- Event “tags”: 28-bit value with user-defined semantics (per-event).
- Field “tags”: 28-bit value with user-defined semantics (per-field – can be applied to “data” or “struct” elements).
- You can now define “provider traits” in the manifest (e.g. provider group). If provider traits are used in the manifest, the EventRegister[ProviderName] macro will automatically register them.
- MC will now report an error if a localized message file is missing a string. (Previously MC would silently generate a corrupt message resource.)
- MC can now generate Unicode (utf-8 or utf-16) output with the “-cp utf-8” or “-cp utf-16” parameters.
Read more about API updates and additions here.