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Merge pull request #6625 from MicrosoftDocs/hamza/psdk/march2026-GE
Add Windows SDK GE 10.0.26100.8038 release notes and download links
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hub/apps/windows-sdk/downloads.md

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title: Windows SDK downloads
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description: Downloads for the Windows SDK
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ms.topic: article
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ms.date: 03/27/2026
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ms.date: 04/10/2026
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keywords: windows win32, windows app development, Windows App SDK, windows sdk
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ms.localizationpriority: medium
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---
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For older versions, see the [Windows SDK download archive](downloads-archive.md).
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## Windows 11
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## Windows 11 — 28000 versions
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| Release | Downloads |
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| ----- | -------------------------------------- |
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| **Windows SDK for Windows 11 (10.0.28000.1721)** <br/> March 2026 <br/> [Release notes](./release-notes.md#build-100280001721) | [Installer](https://go.microsoft.com/fwlink/?linkid=2357925) <br/> [ISO](https://go.microsoft.com/fwlink/?linkid=2357642) |
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| **Windows SDK for Windows 11 26H1 for OEMs and Partners (10.0.28000.1)** <br/> November 2025 | [Installer](//go.microsoft.com/fwlink/?linkid=2342535) <br/> [ISO](//go.microsoft.com/fwlink/?linkid=2343616) |
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## Windows 11 — 26100 versions
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| Release | Downloads |
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| ----- | -------------------------------------- |
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| **Windows SDK for Windows 11 (10.0.26100.8038)** <br/> March 2026 <br/> [Release notes](./release-notes.md#build-100261008038) | [Installer](https://go.microsoft.com/fwlink/?linkid=2358390) <br/> [ISO](https://go.microsoft.com/fwlink/?linkid=2358476) |
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| **Windows SDK for Windows 11 (10.0.26100.7705)** <br/> February 2026 <br/> [Release notes](./release-notes.md#build-100261007705) | [Installer](https://go.microsoft.com/fwlink/?linkid=2349110) <br/> [ISO](https://go.microsoft.com/fwlink/?linkid=2348707) |
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| **Windows SDK for Windows 11 (10.0.26100.7627)** <br/> January 2026 <br/> [Release notes](./release-notes.md#build-100261007627) | [Installer]( https://go.microsoft.com/fwlink/?linkid=2347650) <br/> [ISO](https://go.microsoft.com/fwlink/?linkid=2347553) |
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| **Windows SDK for Windows 11 (10.0.26100.7463)** <br/> December 2025 <br/> [Release notes](./release-notes.md#build-100261007463) | [Installer](https://go.microsoft.com/fwlink/?linkid=2346012) <br/> [ISO](https://go.microsoft.com/fwlink/?linkid=2345534) |
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| **Windows SDK for Windows 11 (10.0.26100.7175)** <br/> November 2025 <br/> [Release notes](./release-notes.md#build-100261007175) | [Installer](//go.microsoft.com/fwlink/?linkid=2342616) <br/> [ISO](//go.microsoft.com/fwlink/?linkid=2342518) |
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| **Windows SDK for Windows 11 26H1 for OEMs and Partners (10.0.28000.1)** <br/> November 2025 | [Installer](//go.microsoft.com/fwlink/?linkid=2342535) <br/> [ISO](//go.microsoft.com/fwlink/?linkid=2343616) |
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| **Windows SDK for Windows 11 (10.0.26100.6901)** <br/> October 2025 <br/> [Release notes](./release-notes.md#build-100261006901) | [Installer](//go.microsoft.com/fwlink/?linkid=2338977) <br/> [ISO](//go.microsoft.com/fwlink/?linkid=2338787) |
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| **Windows SDK for Windows 11 (10.0.26100.6584)** <br/> September 2025 <br/> [Release notes](./release-notes.md#build-100261006584) | [Installer](//go.microsoft.com/fwlink/?linkid=2335755) <br/> [ISO](//go.microsoft.com/fwlink/?linkid=2335668) |
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| **Windows SDK for Windows 11 (10.0.26100.4948)** <br/> August 2025 <br/> [Release notes](./release-notes.md#build-100261004948) | [Installer](//go.microsoft.com/fwlink/?linkid=2332022) <br/> [ISO](//go.microsoft.com/fwlink/?linkid=2332023) |
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| **Windows SDK for Windows 11 (10.0.26100.4654)** <br/> July 2025 <br/> [Release notes](./release-notes.md#build-100261004654) | [Installer](//go.microsoft.com/fwlink/?linkid=2327008) <br/> [ISO](//go.microsoft.com/fwlink/?linkid=2326092) |
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| **Windows SDK for Windows 11 (10.0.26100.4188)** <br/> May 2025 <br/> [Release notes](./release-notes.md#build-100261004188) | [Installer](//go.microsoft.com/fwlink/?linkid=2320455) <br/> [ISO](//go.microsoft.com/fwlink/?linkid=2320054) |
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| **Windows SDK for Windows 11 (10.0.26100.3916)** <br/> April 2025 <br/> [Release notes](./release-notes.md#build-100261003916) | [Installer](//go.microsoft.com/fwlink/?linkid=2317808) <br/> [ISO](//go.microsoft.com/fwlink/?linkid=2317714) |
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| **Windows SDK for Windows 11 (10.0.26100.3323)** <br/> February 2025 <br/> [Release notes](./release-notes.md#build-100261003323) | [Installer](//go.microsoft.com/fwlink/?linkid=2305205) <br/> [ISO](//go.microsoft.com/fwlink/?linkid=2306415) |
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## Windows 11 — 22000 versions and earlier
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| Release | Downloads |
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| ----- | -------------------------------------- |
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| **Windows SDK for Windows 11 (10.0.22621.5040)** <br/> April 2025 | [Installer](//go.microsoft.com/fwlink/?linkid=2311806) <br/> [ISO](//go.microsoft.com/fwlink/?linkid=2312900) |
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| **Windows SDK for Windows 11 (10.0.20348.3330)** <br/> August 2025 (Includes servicing update for [CVE-2024-29187](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-29187)) | [Installer](//go.microsoft.com/fwlink/?linkid=2331862) |
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hub/apps/windows-sdk/release-notes.md

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title: What's new in Windows SDK
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description: Provides information about release notes for the Windows SDK.
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ms.topic: release-notes
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ms.date: 03/27/2026
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ms.date: 04/10/2026
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keywords: windows win32, windows app development, Windows SDK, Windows Platform SDK, windows 11
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ms.localizationpriority: medium
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---
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For the the latest builds, see [Downloads for the Windows SDK](./downloads.md).
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## 28000 versions
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## Build 10.0.28000.1721
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Released: **March, 2026** <br><br>
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## 26100 versions
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## Build 10.0.26100.8038
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Released: **March, 2026** <br><br>
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<details>
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<summary>WinRT API additions and updates</summary>
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> **Windows.ApplicationModel.Contacts.Provider**:
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> <br/>
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> New types:
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>
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> - `IContactProvider` - Interface with `GetContactFromRemoteIdAsync` method
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>
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> **Windows.Devices.Printers**:
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> <br/>
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> New types:
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>
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> - `IppAttributeGroupKind` - Enum for IPP attribute group kinds
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> - `IIppAttributeConverterStatics` - Interface with `ConvertPrintTicketToIppAttributesForPrinter`, `ConvertBufferToIppAttributes`, `ConvertIppAttributesToBuffer`
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> - `IppAttributeConverter` - Runtime class
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> - `IPdlPassthroughProvider2` - Interface with `IsPassthroughWithJobAttributesSupported` property and `StartPrintJobWithIppJobAttributes` method
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>
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> **Windows.Graphics.Printing.PrintSupport**:
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> <br/>
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> New types:
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>
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> - `IPrintSupportPrintDeviceCapabilitiesChangedEventArgs5` - Interface with `SetPdlPassthroughWithJobAttributesSupported` method
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>
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> **Windows.Graphics.Printing.Workflow**:
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> <br/>
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> New types:
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>
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> - `IPrintWorkflowPrinterJob3` - Interface with `IsPassthroughJob` property, `GetPassthroughJobAttributes`, and `GetPassthroughJobOperationAttributes` methods
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>
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> **Windows.Storage.Search**:
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> <br/>
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> New types:
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>
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> - `IQueryOptionsAdditionalSearchSources` - Adds `IncludeCloudProviders` and `IncludeLocalSemanticIndex` properties to `QueryOptions`
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</details>
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<details>
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<summary>Win32 API additions and updates</summary>
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> **Bluetooth Hands-Free Profile (bthdef.h)**
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> <br/>
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> Added new defines for HFP Audio Gateway and Hands-Free SDP and BRSF supported features:
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>
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> - `HFP_AG_SDP_SUPPORTED_FEATURE_*` - Audio Gateway SDP feature flags for three-way calling, echo cancellation, voice recognition, in-band ring tone, voice tag, wide-band speech, and more
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> - `HFP_AG_BRSF_SUPPORTED_FEATURE_*` - Audio Gateway BRSF feature flags for three-way calling, echo cancellation, voice recognition, reject call, enhanced call status/control, codec negotiation, and more
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> - `HFP_HF_SDP_SUPPORTED_FEATURE_*` - Hands-Free SDP feature flags for echo cancellation, three-way calling, CLI presentation, voice recognition, remote volume control, wide-band speech, and more
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> - `HFP_HF_BRSF_SUPPORTED_FEATURE_*` - Hands-Free BRSF feature flags for echo cancellation, three-way calling, CLI presentation, voice recognition, remote volume control, codec negotiation, and more
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> - `HFP_NETWORK_NO_ABILITY_TO_REJECT`, `HFP_NETWORK_ABILITY_TO_REJECT` - Network call rejection capability flags
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>
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> **Virtualization-Based Security (ntstatus.h / winerror.h)**
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> <br/>
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> New error codes:
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>
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> - `STATUS_VSM_FW_MEASUREMENTS_SEAL_FAILURE` - VSM firmware measurements seal failure status
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> - `ERROR_VSM_FW_MEASUREMENTS_SEAL_FAILURE` - Corresponding Win32 error code
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>
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> **Video Encoding (codecapi.h)**
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> <br/>
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> New enum and property for D3D12 reconstructed picture output:
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>
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> - `eAVEncVideoD3D12ReconstructedPictureOutputMode` enum
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> - `CODECAPI_AVEncVideoD3D12ReconstructedPictureOutputMode` codec API GUID
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>
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> **Direct3D 12 (d3d12.h)**
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> <br/>
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> Spelling corrections for tight alignment defines:
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>
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> - `D3D12_TIGHT_ALIGNMENT_MIN_COMMITTED_RESOURCE_ALIGNMENT` (replaces misspelled `ALIGNEMNT` variant)
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> - `D3D12_TIGHT_ALIGNMENT_MIN_PLACED_RESOURCE_ALIGNMENT` (replaces misspelled `ALIGNEMNT` variant)
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>
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> **Local Security Authority (ntlsa.h)**
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> <br/>
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> Added new structs for agent-based logon:
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>
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> - `_LSA_AGENT_LOGON_CREDENTIAL` - Agent logon credential data
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> - `_LSA_AGENT_ACCOUNT_INFO` - Agent account information
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> - `_LSA_AGENT_ACCOUNT_LIST` - List of agent accounts
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>
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> **Content Indexing (NTQuery.h)**
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> <br/>
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> New define:
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>
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> - `CI_VERSION_CORRID` - Content index version correlation ID
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>
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> **Secure Channel (schannel.h)**
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> <br/>
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> Added new types for TLS extension copying:
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>
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> - `SCH_COPY_EXTS_DATA` struct - Data structure for copying TLS extensions
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> - `SchCopyExtsOptions` enum - Options for TLS extension copy operations
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>
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> **Text Services Framework (TextStor.h)**
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> <br/>
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> New defines:
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>
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> - `TS_SD_DISABLEWRITINGSUGGESTIONS` - Flag to disable writing suggestions
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> - `TS_SS_MULTILINE` - Flag for multiline text store support
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>
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> **Remote Desktop Virtual Channels (tsvirtualchannels.h)**
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> <br/>
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> Added new interfaces, structs, and enums for RDP window information:
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>
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> - `IWTSWindowChangedCallback` - Callback interface for window change notifications
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> - `IWTSWindowInfoService` - Interface for querying window info, client process ID, session type, and subscribing to window changes
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> - `WTSWindowInfo` struct - Window information data
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> - `RdpSessionType` enum - RDP session type values
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>
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> **WebAuthn Plugin API (webauthnplugin.h)**
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> <br/>
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> Graduated from experimental to stable:
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>
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> - `WEBAUTHN_PLUGIN_ADD_AUTHENTICATOR_OPTIONS_2` (previously `EXPERIMENTAL_WEBAUTHN_PLUGIN_ADD_AUTHENTICATOR_OPTIONS_2`)
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> - `WEBAUTHN_PLUGIN_UPDATE_AUTHENTICATOR_DETAILS_2` (previously `EXPERIMENTAL_WEBAUTHN_PLUGIN_UPDATE_AUTHENTICATOR_DETAILS_2`)
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> - `WEBAUTHN_PLUGIN_USER_VERIFICATION_REQUEST_2` (previously `EXPERIMENTAL_WEBAUTHN_PLUGIN_USER_VERIFICATION_REQUEST_2`)
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</details>
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<details>
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<summary>COM API updates</summary>
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> **Remote Desktop Virtual Channels (tsvirtualchannels.idl)**
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> <br/>
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> Added new interfaces for RDP window information:
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>
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> - `IWTSWindowChangedCallback` - Callback interface with `WindowChanged` method
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> - `IWTSWindowInfoService` - Interface with `GetWindowInfo`, `GetRdpClientProcessId`, `GetRdpSessionType`, `SubscribeWindowChanged`, `UnsubscribeWindowChanged`
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> - `WTSWindowInfo` struct - Window information data
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> - `RdpSessionType` enum - RDP session type values
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</details>
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---
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## Build 10.0.26100.7705
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## 22000 versions and earlier
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## Build 10.0.22621.3235
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Released: **February 29, 2024**

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