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IddCx versions

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This page provides information about IddCx versions, including version numbers, associated version value returned by IddCxGetVersion, and high-level changes made to each version.

This page also lists the IddCx version (and IddCxGetVersion value) shipped with Windows 11, Windows 10, and Windows Server releases.

IddCx versions and features

IddCx version IddCxGetVersion returned Changes from previous public version
1.10 0x1A80 Add HDR10, SDR Wide Color Gamut (WCG), and runtime power management support - Windows 2024
1.10 0x1A00 Add HDR10 and SDR Wide Color Gamut (WCG) support - Windows 11 23H2
1.9 0x1900 Add IddCxSetRealtimeGPUPriority; disallow UMDF process pooling
1.8 0x1800 Add IDDCX_ADAPTER_FLAGS_PREFER_PRECISE_PRESENT_REGIONS
1.7 0x1700 Add IddCxMonitorQueryHardwareCursor2 and deprecate IDDCX_ADAPTER_FLAGS_CAN_USE_MOVE_REGIONS
1.6 0x1600 Add IddCxSwapChainGetPhysicallyContiguousAddress, which will likely be deprecated in the future
1.5 0x1500 Add IddCxSwapChainInSystemMemory and IddCxSwapChainReleaseAndAcquireSystemBuffer
1.4 0x1400 Add support for remote session ID drivers, EvtIddCxMonitorGetPhysicalSize, IddCxAdapterSetRenderAdapter, and IddCxAdapterDisplayConfigUpdate
1.3 0x1300 Add ability to load a driver built against IddCx 1.3 or above
1.2 0x1200 Add IddCxGetVersion, IddCxReportCriticalError, IddCxMonitorSetSrmList, and IddCxMonitorGetSrmListVersion
1.1 N/A Internal IddCx version update
1.0 N/A Initial version

IddCx version info for Windows 11 releases

Build number Release code name Release name IddCx version IddCxGetVersion returned
22631 n/a Windows 11 23H2 1.10 0x1A00
22621 SV2 Windows 11 22H2 1.9 0x1900
22000 SV1 Windows 11 21H2 1.8 0x1800

IddCx version info for Windows 10 releases

Build number Release code name Release name IddCx version IddCxGetVersion returned
19045 22H2 Windows 10 22H2 1.5 0x1500
19044 21H2 Nov 2021 Update 1.5 0x1500
19043 21H1 May 2021 Update 1.5 0x1500
19042 20H2 October 2020 Update 1.5 0x1500
19041 20H1/Vb May 2020 Update 1.5 0x1500
18363 19H2 Nov 2019 Update 1.4 0x1400
18362 19H1 May 2019 Update 1.4 0x1400
17763 RS5 October 2018 Update 1.3 0x1380
17134 RS4 April 2018 Update 1.3 0x1300
16299 RS3 Fall Creators Update 1.2 0x1200
15063 RS2 Creators Update 1.0 N/A
14393 RS1 Anniversary Update 1.0 N/A

IddCx version info for Windows Server releases

Build number Release code name Release name IddCx version IddCxGetVersion returned
20348 21H1/Iron Server 2022 1.7 0x1700
19042 20H2 Server 20H2 1.5 0x1500
18363 19H2 Server 1909 1.4 0x1400
17763 RS5 Server 2019 1.3 0x1380