What you need to know
- A new Windows 10 SDK preview build is now available for developers.
- This release pushes the build number to 19028.
- Developers can download this SDK now from the Windows Insider site.
A new Windows 10 SDK preview became available this week. Developers can grab SDK preview build 19028 through the Windows Insider website. The build number of this SDK is just five numbers beyond the most recent build for the Fast ring.
The release notes for 19028 are mostly the same as they have been for several previous builds we've seen, though there is an additional breaking change listed. Here's a quick recap.
Message Compiler (mc.exe)
- Now detects the Unicode byte order mark (BOM) in .mc files. If the If the .mc file starts with a UTF-8 BOM, it will be read as a UTF-8 file. Otherwise, if it starts with a UTF-16LE BOM, it will be read as a UTF-16LE file. If the -u parameter was specified, it will be read as a UTF-16LE file. Otherwise, it will be read using the current code page (CP_ACP).
- Now avoids one-definition-rule (ODR) problems in MC-generated C/C++ ETW helpers caused by conflicting configuration macros (e.g. when two .cpp files with conflicting definitions of MCGEN_EVENTWRITETRANSFER are linked into the same binary, the MC-generated ETW helpers will now respect the definition of MCGEN_EVENTWRITETRANSFER in each .cpp file instead of arbitrarily picking one or the other).
Windows Trace Preprocessor (tracewpp.exe)
- Now supports Unicode input (.ini, .tpl, and source code) files. Input files starting with a UTF-8 or UTF-16 byte order mark (BOM) will be read as Unicode. Input files that do not start with a BOM will be read using the current code page (CP_ACP). For backwards-compatibility, if the -UnicodeIgnore command-line parameter is specified, files starting with a UTF-16 BOM will be treated as empty.
- Now supports Unicode output (.tmh) files. By default, output files will be encoded using the current code page (CP_ACP). Use command-line parameters -cp:UTF-8 or -cp:UTF-16 to generate Unicode output files.
- Behavior change: tracewpp now converts all input text to Unicode, performs processing in Unicode, and converts output text to the specified output encoding. Earlier versions of tracewpp avoided Unicode conversions and performed text processing assuming a single-byte character set. This may lead to behavior changes in cases where the input files do not conform to the current code page. In cases where this is a problem, consider converting the input files to UTF-8 (with BOM) and/or using the -cp:UTF-8 command-line parameter to avoid encoding ambiguity.
- Now avoids one-definition-rule (ODR) problems caused by conflicting configuration macros (e.g. when two .cpp files with conflicting definitions of TLG_EVENT_WRITE_TRANSFER are linked into the same binary, the TraceLoggingProvider.h helpers will now respect the definition of TLG_EVENT_WRITE_TRANSFER in each .cpp file instead of arbitrarily picking one or the other).
- In C++ code, the TraceLoggingWrite macro has been updated to enable better code sharing between similar events using variadic templates.
Signing your apps with Device Guard Signing
- We are making it easier for you to sign your app. Device Guard signing is a Device Guard feature that is available in Microsoft Store for Business and Education. Signing allows enterprises to guarantee every app comes from a trusted source. Our goal is to make signing your MSIX package easier. Documentation on Device Guard Signing can be found here: https://docs.microsoft.com/en-us/windows/msix/package/signing-package-device-guard-signing
- Removal of api-ms-win-net-isolation-l1-1-0.lib: In this release api-ms-win-net-isolation-l1-1-0.lib has been removed from the Windows SDK. Apps that were linking against api-ms-win-net-isolation-l1-1-0.lib can switch to OneCoreUAP.lib as a replacement.
- Removal of IRPROPS.LIB: In this release irprops.lib has been removed from the Windows SDK. Apps that were linking against irprops.lib can switch to bthprops.lib as a drop-in replacement.
- Removal of WUAPICommon.H and WUAPICommon.IDL In this release we have moved ENUM tagServerSelection from WUAPICommon.H to wupai.h and removed the header. If you would like to use the ENUM tagServerSelection, you will need to include wuapi.h or wuapi.idl.
In addition to updating the build number, this release includes several API updates and tweaks. You can check out the full release notes on Microsoft's blog post. Developers should note that this release can also be installed alongside previous SDK versions in Visual Studio.
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