| Host Type & Toolchain | Build Status | Test Status | Code Coverage |
|---|---|---|---|
| Windows_VS2022 | 
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| Ubuntu_GCC5 | 
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This repository is part of Project Mu. Please see Project Mu for details https://microsoft.github.io/mu.
For more details about the repository, refer to RepoDetails.md.
| Status: | In Development |
|---|---|
| Entered Development: | 2025/11/23 (Date EDK2 started accepting changes which were not in a previous release) |
| Anticipated Stabilization: | May 2025 |
- General
- EDK2 packages that were split into mu_tiano_plus, mu_silicon_intel_tiano, mu_silicon_arm_tiano have been kept in mu_basecore.
- mu_tiano_plus, mu_silicon_arm_tiano are deprecated, and projects should be updated to no longer consume them.
- MSVC AARCH64 build support has been removed. Please use ClangPDB or GCC for AARCH64 compilation.
- Itanium support cleanup. DXE_SAL_DRIVER is no longer recognized as a keyword by build tools. Remove any usage of this term.
- ARM support (arm 32) has been removed by EDK2.
- mu_silicon_intel_tiano only contains IntelSiliconPkg from edk2-platforms.
- EDK2 is moving towards depreciating TOOL_CHAIN_TAG GCC5, and platforms should start planning on using the GCC replacement. NOTE: This has implications for build overrides from dsc and inf files.
- MdePkg
- gEfiEventPostReadyToBootGuid has been dropped in favor of EDK2's gEfiEventAfterReadyToBootGuid. Events should be switched to use gEfiEventAfterReadyToBootGuid.
- MdeModulePkg
- UgaSupport has been removed from EDK2. This includes PCDs associated with it such as gEfiMdeModulePkgTokenSpaceGuid.PcdConOutUgaSupport
- UefiDevicePathLibStandaloneMm has been removed by EDK2. Platforms should replace this with instance UefiDevicePathLibBase.
- UhciPei.inf has been removed by EDK2. Remove any reliance on the driver.
- PPI gPeiUsbHostControllerPpiGuid has been removed by EDK2. Remove any references to it and associated files.
- BaseUefiBootManagerLibNull has been removed. It was intended to speed up CI builds, but never to be used in platforms. Remove references to it.
- MemoryProtectionSpecialRegionGuid support has been depreciated. Remove any references to the includes.
- gMemoryProtectionNonstopModeProtocolGuid has been removed. Code relying upon it should be changed to expect a system reboot upon exceptions.
- BaseUefiBootManagerLibNull instance of UefiBootManagerLib has been dropped.
- Memory Protection Read Protect on Freed memory has been dropped. The implementation resulted in false reports of issues.
- gEfiEventPostReadyToBootGuid has been dropped in favor of EDK2's gEfiEventAfterReadyToBootGuid
- StandaloneMmPkg
- MmCommunicationNotifyDxe.inf has been created by splitting the functionality out of MmCommunicationDxe.inf. Platforms will need to update to include the additional driver.
- UefiCpuPkg
- AmdSysCallLib has been introduced and dependencies taken. AMD based platform may need to include this additional library class.
- PcdCpuApWakeupBufferReserved has been removed. WakeupBuffers will be allocated as EfiBootServicesData. Please remove pcds from any components.
- EmbeddedPkg
- FdtLib has been dropped. Please use the BaseFdtLib from MdePkg. (Will require code to be touched because interfaces are not 1:1 compatible).
- ArmPkg
- ArmMmuLib has been promoted from ArmPkg into UefiCpuPkg. Please update the paths for instances.
- gArmTokenSpaceGuid.PcdVFPEnabled has been dropped. New implemenation should not require this.
- PcdFdMemoryType has been deprecated. Fd memory will be reported as EfiBootServicesData.
- At the start of 202511, mu_basecore contains 307 commits on top of edk2-stable202511. Full MU changes list can be viewed in the changelog.
Reference platforms which consume release/202511 are available in mu_tiano_platforms.
Please note that this version of EDK2 has specific requirements when it comes to TF-A support. Platforms that consume this version of EDK2 must ensure their TF-A contains this set of patches. Failure to contain the appropriate patches will result in a failure to boot.
This project has adopted the Microsoft Open Source Code of Conduct https://opensource.microsoft.com/codeofconduct/
For more information see the Code of Conduct FAQ https://opensource.microsoft.com/codeofconduct/faq/ or contact opencode@microsoft.com with any additional questions or comments.
Contributions are always welcome and encouraged! Please open any issues in the Project Mu GitHub tracker and read https://microsoft.github.io/mu/How/contributing/
For documentation:
Copyright (c) 2019, TianoCore and contributors. All rights reserved.
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