Revision History

Many people have contributed to the contents of this specification, including the following:

* UEFI Specification Working Group (USWG)

* Tianocore Community Members

* Others noted in the Revision History below

Changes in this release

Revision	Issue # - Description	Modified/Added Content
2.11	2365 - New Memory Attribute for hot plug	Section 7.2.3
2.11	2371 - Correct the description of EFI_KMS_PROTOCOL.DeleteKey(), KeyDescriptors	Section 37.3.1, Section 37.3.2.5
2.11	2384 - Mandate the UEFI Arm implementation to allocate pages from the 48-bit address range first	Section 2.3.6
2.11	2386 - EFI_RNG_PROTOCOL Describe the DRBG algorithm used in the Arm RNDR instruction	Section 37.5.4
2.11	2388 - Add support for Proxy Host URI in HTTP Boot	Section 24.7.2.1, Section 24.7.3.1, Section 24.7.10, Section 29.6.6
2.11	2393 - Arm CPER processor error section, support FEAT_D128	Table N.31
2.11	2431 - CodeFirst: Adjust LoongArch exception and interrupt types	Section 18.2.5
2.11	2437 - CodeFirst: Add new HTTP Boot Callback Type	Section 24.7.13
2.11	2440 - CPER definition for FRU memory poison	Section N.2.15
2.11	2443 - Add Storage Device Class for EFI_BOOT_MANAGER_POLICY_CONNECT_DEVICE_CLASS	Section 3.2.3
2.11	2448 - update UEFI spec version to 2.11	Title page
2.11	2449 - RISC-V AP-TEE Confidential Computing Extension for UEFI	Section 38.4.2
2.11	2453 - Add SM2, SM3 crypto algorithm	Table 32.4, Section 32.4.1
2.11	2457- Code-First: Changes to CPER definition for PCIe	Table N.34, Table N.42
2.11	2462 - Fix the Type mnemonic description in the ARM Processor Error Information Structure	Section N.2.4.4.1
2.11	2468 - Elaborate on EFI_LOADED_IMAGE_PROTOCOL.Unload() usage	Section 9.1, Section 9.1.2, Section 9.2
2.11	2475 - Typo in the EFI_TABLE_HEADER “HeaderSize” field description	Section 4.2
2.11	2476 - Correct the section header for EFI_CC_MEASUREMENT_PROTOCOL.GetEventLog	Section 38.2.3
2.11	2480 - Deprecate CryptoIndications variables	Modified Section 3.3, and removed Section 32.5 Firmware/OS Crypto Algorithm Exchange
2.11	2483 - Collection of Non-Functional Fixes	Various content and references in spec

Changes in previous releases

Revision	Issue # - Description	Modified/Added Content
2.10A	2016 - Compression/decompression clean up	Section I
2.10A	2359 - Update the PASS_THRU_PROTOCOL to Enhance the logic for AtaPassThruGetNextPort()/AtaPassThruGetNext	Section 13.13.4
2.10A	2360 - Clarify that EFI_MEMORY_WB and _WT share ability attributes on AArch64	Table 2.5
2.10A	2367 - EFI_FILE_PROTOCOL.Open() suggests that a file may be opened relative to a regular file	Section 13.5.1, Section 13.5.2, Section 13.5.3
2.10A	2368 - mixed up error codes for EFI_FILE_PROTOCOL.OpenEx()	Section 13.5.9
2.10A	2369 - EFI_TABLE_HEADER Revision field cannot represent version 2.10	Section 1.9.9, Section 4.2
2.10A	2373 - Typo in spec EFIBOOTBOOT and EFIBOOTBOOT{machine type short-name}.EFI type	Section 3.5.1.1
2.10A	2376 - Update the RISC-V Platforms section for more concise language	Section 2.3.7, Section 2.3.7.1, Section 2.3.7.2, Section 2.3.7.3, Section 2.3.8
2.10A	2408 - Recommended PCI Device Driver Layout missing RV and LoongArch	Table 14.18, Section 14.4.25
2.10A	2411 - Fix incorrect references in the Platform-Specific Elements section.	Section 2.6.2
2.10A	2412 - Update references and remove extraneous text.	Section 14.4.21
2.10A	2415 - Update reference links in chapters 8 and 32.	Section 8, Section 32.3.2, Section 32.5.3, Section 32.6.3, Section 32.7.1
2.10A	2417 - Remove old text from the VendorTable definition for the EFI_CONFIGURATION_TABLE	Section 4.6.1
2.10A	2421 - Update DEFAULT_TTL to IANA’s default value of 64.	Section 24.3.5
2.10A	2428 - Update Status Codes Returned for EFI_FIRMWARE_MANAGEMENT_PROTOCOL.GetImageInfo()	Section 23.1.2
2.10A	2438 - Wrong Text Device Node for NVDIMM Namespace path	Table 10.67
2.10A	2439 - Include ACPI Device Path Subtype 4 for NVDIMM Device	Table 10.67
2.10A	2445 - Fix typos and other cleanup	Section 3.5.1.1, Section 8.5.5, Section 18.2.2, Section 29.3.13
2.10A	2447 - Undefined behavior of SetVariable(EFI_VARIABLE_APPEND_WRITE) for non-existent variable	Section 8.2.3
2.10A	2455 - Precedence of return codes for QueryVariableInfo	Section 8.2.4
2.10A	2456 - Remove deprecated content	various content and references in spec
2.10A	2462 - Arm CPER Processor Error Type values defined incorrectly	Table N.17
2.10	2205 - Enabling SHA-384/SHA-512 signing scheme for Authenticated Variables	Section 8.2.6
2.10	2207 - EFI_SECURITY_VIOLATION can’t be returned by EFI_FIRMWARE_MANAGEMENT_PROTOCOL.GetImage()	Section 23.1.3
2.10	2217 - Device Authentication Signature Database	Section 3.3, Section 32.4.1, Section 32.6, Section 32.7.2
2.10	2229 - Support ISA-specific memory attributes in descriptors	Section 2.3.6.1, Section 7.2.3
2.10	2247 - Support crypto agile	Section 2.6.5, Section 8.2.5, Section 8.2.6, Section 27.2, Section 28.9, Section 32.3, Section 32.5.3.3, Section 37.4
2.10	2262 - Add Memory Protection proposal - UEFI_MEMORY_ATTRIBUTE protocol	Section 37.7.1
2.10	2266 - Code First - Image Execution Table - revocations of hashes (Samer El-Haj-Mahmoud)	Section 32.4.2
2.10	2271 - Introduce UEFI Conformance Profiles	Section 2.6, Section 4.6.4
2.10	2277 - Code first - Uart() UEFI DevicePath binary/text confusion issue (Samer El-Haj-Mahmoud)	Section 10.6.1.6
2.10	2278 - AARCH64 binding requirement for an OS calling RT services on platforms with SME	Section 2.3.6, Section 2.3.6.4
2.10	2291 - Support crypto agile - Address crypto agile compatibility	[deprecated in UEFI 2.11]
2.10	2292 - Forward Control Flow Guard Instruction runtime indicator	Section 4.6.3
2.10	2313 - Add LoongArch architecture support to UEFI specification	Section 2.3.8
2.10	2315 - Add NVM Express over Fabrics messaging device path AND NVMe Trademark updates	Section 6.1, Table 10.52, Section 10.3.4.32, Section 10.3.4.33, Table 10.67, Section 13.15.2
2.10	2317 - Add confidential computing extension for UEFI	Section 38
2.10	2318 - Update boot requirement for RISC-V platform	Section 2.3.7.1
2.10	2320 - Remove EBBR Conformance profile	Section 4.6.4
2.10	2329 - Update the UEFI to Version 2.10	Section 4.3
2.10	2336 - Feedback on UEFI 2.10 draft	sections throughout
2.10	2337 - Code First -Add LoongArch to section UEFI Images Boot Manager PCI Option ROMs and Debugger Support sections (Li Chao)	sections throughout
2.10	2339 - Re-add RSA 4k support for UEFI 2.10 crypto agility	[deprecated in UEFI 2.11]
2.10	2342 - GetHealthStatus: Make the statement and table consistent for EFI_UNSUPPORTED for Controller Handle Null case	Section 11.10.2
2.9A	2225 - Clarify the specification requirements around processing Boot#### variable	Section 3.1.7, Table 3.1, Section 7.1.2
2.9A	2227 - Clarify NVMe device path EUI-64 byte order	Section 10.3.4.21
2.9A	2235 - Clarify EFI_LOAD_OPTION.FilePathList[] device path definition	Section 3.1.3
2.9A	2243 - Removing old references to Wired for Management (WfM)	Section 3.5.2.1, Section 7.3.1, Table 24.1, Referenced Specifications, Glossary
2.9A	2249 - Cleanup of the SI & Binary Prefixes section	Section 1.9.8
2.9A	2251 - Clarification of DevicePath examples using 0xFF for End of HW DP	Section 10.3.4.4, Table 12.4, Table 14.4, Table 15.1, Legacy Floppy
2.9A	2252 - Clarify OS dependency on UEFI vs PI interfaces	Section 1.4
2.9A	2263 - CXL CPER updates	Table N.42
2.9A	2270 - Add “CPER” acronym to Appendix N	Common Platform Error Record (CPER)
2.9A	2286 - Section header for CHAP (using RADIUS) Authentication Node	Section 32.1.6
2.9A	2306 - Define Arm CPER Processor Error Types	ARM Processor Error Information Structure
2.9A	2311 - Define the DevicePath argument from LoadImage as optional	Section 7.4.1
2.9A	2327 - Correcting subtype value for REST Service Device Path	Section 10.3.4.31
2.9A	2330 - Principle of Inclusive Terminology statement	Section 1.1

Revision	Issue # - Description	Release Date
2.9	1866 GetInfo() of Adapter Information Protocol should have a provision for IHV to return no data	March 2021
2.9	1982 Clarify the PKCS#7 SignedData structure of EFI_VARIABLE_AUTHENTICATION	March 2021
2.9	1986 Need a mechanism using which browser to exit out of IHV formset silently without any popup	March 2021
2.9	1989 NVDIMM SPA Location Cookie	March 2021
2.9	2024 CXL CPER Records	March 2021
2.9	2042 New Event Group EFI_EVENT_GROUP_ AFTER_READY_TO_BOOT	March 2021
2.9	2043 New Event Group EFI_EV ENT_GROUP_BEFORE_EXIT_BOOT_SERVICES	March 2021
2.9	2046 Add support for Key 14 & 56 for Japanese keyboard layout	March 2021
2.9	2053 Figure/Table Numbers are Duplicated in Appendices	March 2021
2.9	2062 Table numbering to restart for each chapter	March 2021
2.9	2065 CXL proposal for CDAT table extraction from devices	March 2021
2.9	2093 UpdateCapsule ScatterGatherList cache maintenance	March 2021
2.9	2129 Add DTB Configuration Table standard GUID	March 2021
2.9	2131 Clarify Console requirements	March 2021
2.9	2134 Introduce unaccepted memory type	March 2021
2.9	2155 Typo in Arm Processor CPER Error Section	March 2021
2.9	2167 CPER for CXL Component Events	March 2021
2.9	2185 Declaration for UEFI 2.9 specification in the System Table	March 2021
2.9	2190 Misc. spec review feedback	March 2021
2.9	2199 EFI_IMAGE_EXECUTION_INFO_TABLE references	March 2021
2.9	2200 Config tables references from section 4.6	March 2021
2.9	2204 Typo in GUID definition for EFI_MANAG ED_NETWORK_SERVICE_BINDING_PROTOCOL	March 2021
2.9	2212 Incorrect cross reference to User Information Table	March 2021
2.8 C	2117 - E FI_BROWSER_ACTION_REQUEST_RECONNECT - perform the action when user exits out of formset	Jan. 2021
2.8 C	2139 Update RISC-V UEFI corresponding spec to align with latest RISC-V spec	Jan. 2021
2.8 C	2155 Typo in Arm Processor CPER Error Section	Jan. 2021
2.8 C	2158 EFI_DRIVE R_HEALTH_PROTOCOL.GetHealthStatus() - Driver not managing any controller	Jan. 2021
2.8 C	2172 Revise EFI_REDFISH_DICOVER_PROTOCOL definitions to match the implementation.	Jan. 2021
2.8 C	2173 Question on EFI_CAPSULE_HEADER Flags definition	Jan. 2021
2.8 C	2184 FI_BOOT_MANAGER_POLICY_PROTOCOL typos	Jan. 2021
2.8 C	2190 EFI_SUCCESS misspelled in five places	Jan. 2021
2.8 B	1926 update: corrected EFI_SYSTEM_TABLE entries from 2_8 to 2_80	May 2020
2.8 B	1935 update: removed a space from several references to the EFI_JSON_CAPSULE_ID_GUID	May 2020
2.8 B	2073 Modify definition of “DPA” for use with CXL based devices	May 2020
2.8 B	2074 Memory Range typo	May 2020
2.8 B	2080 Typo in N.2.2 Section Descriptor Table 56	May 2020
2.8 B	2083 Typo in guid definition of CCIX PER Log Error Section	May 2020
2.8 B	2088 Clarifications on caller-freed buffers	May 2020
2.8 B	2091 Inconsistency in description of EFI_FIRMW ARE_MANAGEMENT_CAPSULE_IMAGE_HEADER structure	May 2020
2.8 B	2092 Typo in definition of PEI Notification type in Table 269. Error record header	May 2020
2.8 B	2095 PCI I/O attribute typos in section 14.4 “EFI PCI I/O Protocol”	May 2020
2.8 B	UEFI Runtime Service Table correction	May 2020
2.8 B	2096 Typo in definition of EFI_JSON_CONFIG_DATA_ITEM	May 2020
2.8 A	1970 Security Command Protocol change for OPAL RAID devices	February 2020
2.8 A	1998 Update RISC-V related spec	February 2020
2.8 A	2000 JSON Capsule clarification	February 2020
2.8 A	2002 Memory allocations between ExitBootServices calls	February 2020
2.8 A	2009 DMTF references in UEFI spec	February 2020
2.8 A	2013 Correct EFI _BOOT_SERVICES.DisconnectController contradicting info in Description	February 2020
2.8 A	2018 EFI_EDID_OVERRIDE_PROTOCOL_GET_EDID should take an EFI_HANDLE as ChildHandle	February 2020
2.8 A	2020 EF I_LOADED_IMAGE_PROTOCOL.LoadOptions does not mention it is related to Load Options.	February 2020
2.8 A	2025 Capsule Depex Length Declaration	February 2020
2.8 A	2026 FMP Capsule Image Header extension	February 2020
2.8 A	2029 Add missing GUIDs in Appendix N	February 2020
2.8 A	2030 Fix spec index to show the Appendix chapters	February 2020
2.8 A	2034 Depex added description	February 2020
2.8 A	2035 Fix OUT parameters marked as IN OUT	February 2020
2.8 A	2036 SetVariable errata: clarify that in-place variable update is supported	February 2020
2.8 A	2038 Configuration Tables Errata	February 2020
2.8 A	2041 EFI_EVENT_GROUP_EXIT_BOOT_SERVICES Errata	February 2020
2.8 A	2050 Incomplete list of EFI_SERVICE_BINDING_PROTOCOL protocols	February 2020
2.8 A	2049 RuntimeServicesSupported EFI variable should be a config table	February 2020
2.8 A	2051 Typo in Table - CPER IA32/X64 Bus Check Structure	February 2020
2.8 A	2053 Figure/Table Numbers are Duplicated in Appendices	February 2020
2.8	1832 Extend SERIAL_IO with DeviceTypeGuid	March 2019
2.8	1834 UEFI REST EX Protocol	March 2019
2.8	1853 Adding support for a REST style formset	March 2019
2.8	1858 New Device Path for bootable NVDIMM namespaces	March 2019
2.8	1861 New EFI_MEMORY_RANGE_CAPSULE Descriptor	March 2019
2.8	1866 GetInfo() of Adapter Information Protocol should have a provision for IHV to return no data	March 2019
2.8	1872 Peripheral-attached Memory	March 2019
2.8	1876 Remove the EBC support requirement	March 2019
2.8	1879 Clarification of REST (EX) protocol	March 2019
2.8	1908 Update of uncommitted data in the FOROM_OPEN callback	March 2019
2.8	1919 Memory Cryptography Attribute	March 2019
2.8	1920 Redfish Discover Protocol	March 2019
2.8	1921 HTTPS hostname validation	March 2019
2.8	1924 Update to EF I_REST_EX_PROTOCOL.AsyncSendReceive	March 2019
2.8	1925 Clarify requirement of REST related protocols	March 2019
2.8	1926 New UEFI Spec Revision –> 2.8	March 2019
2.8	1935 UEFI JSON Capsule Support	March 2019
2.8	1936 ResetSystem - support ResetData for all status scenarios.	March 2019
2.8	1937 Behavior of default values	March 2019
2.8	1941 New EFI REST JSON Structure Protocol	March 2019
2.8	1942 Adding dependency expression capability into FMP type capsules	March 2019
2.8	1947 Keyword strings of Configuration Keyword Handler Protocol Enhancements	March 2019
2.8	1953 Add document version# conventions	March 2019
2.8	1954 set (*Attributes) when GetVariable() returns EFI_BUFFER_TOO_SMALL and Attributes is non-NULL	March 2019
2.8	1956 Platform to honor ActionRequest for Action changing	March 2019
2.8	1961 Add EFI_UNSUPPORTED to EFI_RUNTIME_SERVICES calls	March 2019
2.8	1966 Add new capsule processing error codes	March 2019
2.8	1974 Add new CCIX PER Log Error Section to appendix	March 2019
2.8	1996 Firmware Processing of the Capsule Identified by EFI_JSON_CAPSULE_ID_GUID	March 2019
2.7B	1773 Clarify The EFI System Table entry for capsule image	March 2019
2.7B	1801 ExtractConfig() format may change when called multiple times	March 2019
2.7B	1835 Misleading / unclear statement about EFI-bootability of UDF media	March 2019
2.7B	1838 RGB/BGR Contradiction in 2.7 GOP	March 2019
2.7B	1841 BluetoothLE ECR - support autoreconnect	March 2019
2.7B	1842 BluetoothLE ECR - Add missing ConnectionCompleteCallback	March 2019
2.7B	1843 HTTP Example Code Update	March 2019
2.7B	1844 Replace obsoleted RFC number with new number for TCP	March 2019
2.7B	1845 Clarification on AIP types “Network boot” and “SAN MAC Address”	March 2019
2.7B	1846 EFI_LOAD_FILE2 requirement	March 2019
2.7B	1865 Adding clarification in EFI_NOT_READY for ReadKeyStrokeEx()	March 2019
2.7B	1869 Clarify FMP buffer too small behavior	March 2019
2.7B	1874 Add RFC3021 to reference in uefi.org	March 2019
2.7B	1875 Clarify platform specific elements in chapter 2.6.2	March 2019
2.7B	1878 Errata - Make DHCP server optional for HTTP boot	March 2019
2.7B	1880 Arm binding EL2 register state clarification	March 2019
2.7B	1890 EfiMemoryMappedIO Usage Clarification	March 2019
2.7B	1897 Clarification on mapping of UEFI memory attributes to ARM memory types and paging attributes	March 2019
2.7B	1899 Errata: Clarify EFI_INVALID_PARAMETER for FMP->GetImageInfo()	March 2019
2.7B	1901 GPT Protective MBR description	March 2019
2.7B	1902 CapsuleImageSize Clarification	March 2019
2.7B	1903 Root Directory File Name	March 2019
2.7B	1906 ACPI Table Pointer Installation	March 2019
2.7B	1908 Update of uncommitted data in the FOROM_OPEN callback	March 2019
2.7B	1923 Syntax error in EFI iSCSI Initiator Name Protocol	March 2019
2.7B	1957 Request to add status code EFI_DEVICE_ERROR for ExtractConfig	March 2019
2.7B	1964 Print disclaimer for all future UEFI specs	March 2019
2.7B	1987 incorrect VLAN_CONFIG_SET function definition	March 2019
2.7A	1830 Label Protocol - EFI_NVDIMM_LABEL_FLAGS_LOCAL definition needs to be updated	August 2017
2.7A	1829 Label Protocol Section - Missing define for EFI_NVDIMM_LABEL_FLAGS_UPDATING	August 2017
2.7A	1823 Modifications to the examples of the PCI Option ROM image combinations	August 2017
2.7A	1822 UEFI 2.7 Organization chapter duplicated	August 2017
2.7A	1821 Modify the requirement to enable PCI Bus Mastering	August 2017
2.7A	1817 NVDIMM Label Protocol - SetCookie SerialNumber needs to be UINT32 NOT UINT64	August 2017
2.7A	1816 Clarification of Using HttpConfigData in HTTP protocol	August 2017
2.7A	1815 OpenProtocol() / EFI_ALREADY_STARTED should output existent Interface	August 2017
2.7A	1808 Clarification of using option 43 in PXE v2.1	August 2017
2.7	1779 Adjusting UEFI version to UEFI 2.7	April 2017
2.7	1771BluetoothLE minor fix	April 2017
2.7	1762 UEFI UFS DEVICECONFIG Protocol	April 2017
2.7	1751 Update DNS Device Path	April 2017
2.7	1750 Add new data type to EFI Supplicant Protocol	April 2017
2.7	1745 NVDIMM Label Protocol	April 2017
2.7	1744 NVDIMMBlock Translation Table (BTT) Protocol {NewChapter}	April 2017
2.7	1730 HII Popup Protocol	April 2017
2.7	1726 Host and I/O defense	April 2017
2.7	1720 Have Partition driver publish addition information for MBR/GPT partition types.	April 2017
2.7	1719 Add EFI HTTP Boot Callback Protocol	April 2017
2.7	1718 Allow SetData to clear configuration in Ip4Config2/Ip6Config Protocol	April 2017
2.7	1716 Add BluetoothLE ECR	April 2017
2.7	1711 Firmware Error Record Update	April 2017
2.7	1707 Clarification of Private Authenticated Variables	April 2017
2.7	1701 Add wildcard support to RegisterKeyNotify	April 2017
2.7	1690 Reset Notification Protocol Update	April 2017
2.7	1689 Secure Boot with Externally Managed Configuration	April 2017
2.7	1685 Key Management Services (KMS) Protocol Enhancement	April 2017
2.7	1672 UEFI Variable Enhancements	April 2017
2.7	1654 New AIP Information block for wireless NIC	April 2017
2.7	1652 Add DNS device path node	April 2017
2.7	1647 UEFI binding for RISC-V	April 2017
2.7	1641 Simplify SecureBoot Revocation and Usage of VerifySignature	April 2017
2.7	1641 Simplify Secure Boot Revocation and Usage of VerifySignature	April 2017
2.7	1627 Support ASCII RegEx Patterns in EFI_REGULAR_EXPRESSION_PROTOCOL	April 2017
2.7	1627 EFI regular expression syntax type definitions	April 2017
2.7	1623 New EFI_HTTP_STATUS_CODE enum for 308 Permanent Redirect	April 2017
2.7	1623 New EFI_HTTP_STATUS_CODE enum for 308 Permanent Redirect	April 2017
2.6B	1772 Clarify EFI_NOT_READY in Media State of AIP	April 2017
2.6B	1767 Incorrect structure definition for EFI_IFR_RESET_BUTTON_OP	April 2017
2.6B	1742 Clairfy PK enrolling in user mode	April 2017
2.6B	1741 The memory map returnedByBS->GetMemoryMap() mayContain impossible values.	April 2017
2.6B	1739 typos -Broken references link.	April 2017
2.6B	1729Cleanup of ACPI 2.0 references in UEFI spec	April 2017
2.6B	1708 Typos in Imge Decode and Image Ex Protocols	April 2017
2.6B	1700 Align ACPI descriptor definitions in PCI I/O and PCI RootBridge I/O	April 2017
2.6B	1698 Update to Mantis 1613 - GetNextVariable	April 2017
2.6B	1691 Remove/Deprecate SMM Communication ACPI Table	April 2017
2.6B	1682 HII Protocol StatusCodes	April 2017
2.6B	1678 Simplify the ACPI Table GUID declarations	April 2017
2.6B	1675 section 30.5.1 typo	April 2017
2.6B	1668 Duplicate GUID issue - mustChange the Image Decoder Protocol GUID	April 2017
2.6B	1655 HTTP errata inConfigure()	April 2017
2.6B	1653 Incorrect errorCode value in MTFTP6	April 2017
2.6B	1634 Update to the EFI_SIMPLE_TEXT_INPUT_PROTOCOL TPL restriction	April 2017
2.6B	1629 Errata in GetVariable description	April 2017
2.6B	1625 Clarification of HTTPBoot wire protocol “HTTPClient” VendorClass Option	April 2017
2.6B	1624 Fix spelling typo in EFI_HTTP_STATUS_CODE	April 2017
2.6B	1613 GetNextVariableName Errata	April 2017
2.6B	1612 ResetSystem Errata	April 2017
2.6B	1609 UEFI Errata - Address Security problems in the Pkcs7Verify Protocol	April 2017
2.6B	1608 Enhance EFI_IFR_NUMERIC (Step)	April 2017
2.6B	1586 Errors in appendix N for ARM ProcessorContext Information	April 2017
2.6B	1584 WIFI errata	April 2017
2.6B	1580 Correct some typos	April 2017
2.6B	1559 Clarify return value for NULL pointer in LocateProtocol() API	April 2017
2.6B	1557 secureBoot and auth variable errata	April 2017
2.6B	1556 HTTPv6Boot DHCP Options Errata	April 2017
2.6B	1555 USB Function port protocol errata	April 2017
2.6B	1554 fix to ecr 1539	April 2017
2.6B	1553 os recoveryBoot option errata	April 2017
2.6B	1551 EFIBluetoothConfiguration Protocol Errata	April 2017
2.6B	1550 Replace FTP4 dataCallback pointer-to-function-pointer with regular function pointer	April 2017
2.6A	SameContent as version 2.6,But with the Adobe “accessibility” feature activated so text-to-speech will work.	December 2016
2.6	1548ClarifyBoot procedure when file name is absent2.	January, 2016
2.6	1547Clarify requirements for setting the PK variable.	January, 2016
2.6	1544 DNS lookup API spelling	January, 2016
2.6	1543 ip4/6Config policy errata/2.6 update	January, 2016
2.6	1542 UEFI 2.6 supplicant errata	January, 2016
2.6	1539 New EFI_HTTP_ERROR StatusCode	December, 2015
2.6	1538 UEFI TLS errata	December, 2015
2.6	1536 UEFI 2.6 Errata : IMAGE EX Protocol and EFI HII Image Decoder protocol Errata	December, 2015
2.6	1534 EditorialComments against 2.6 Final Draft	December, 2015
2.6	1533Bugs in the HTTP usage example	December, 2015
2.6	1523Comments against 2.6 Draft	December, 2015
2.6	1522 AArch64Bindings AlignmentBit errata	December, 2015
2.6	1521Comment against UEFI.next draft - M1479	December, 2015
2.6	1519 Version for the next UEFI spec is…	December, 2015
2.6	1518Comments against 2.6 Draft	December, 2015
2.6	1516 EditorialComments against 2.6 Draft	December, 2015
2.6	1509 EFI_PLATFO RM_TO_DRIVER_CONFIGURATION_ PROTOCOL Response to unsupported ParameterTypeGuid	December, 2015
2.6	1508 Lack of flexibility and realism in exception levelChoice whenCalling runtime services	December, 2015
2.6	1507 Insufficient qualification of page attributes for AArch64	December, 2015
2.6	1502 PCI IO Define how to use the Address Translation Offset for systems that are not mapped 1:1	November, 2015
2.6	1501 Define the usage of the “Address Space Granularity” field is defined in the PCI Root IO	November, 2015
2.6	1496Bad table reference in 13.2 EFI_PCI_ROOT _BRIDGE_IO_PROTOCOL.Configuration()	November, 2015
2.6	1494 Errata against UEFI 2.5 Properties Table	November, 2015
2.6	1493 Updates to the SD_MMC_PASS_THRU interface	November, 2015
2.6	1492 wireless macConnection protocol II errata	November, 2015
2.6	1491 supplicant errata	November, 2015
2.6	1480 Refine Progress description in EFI_KEYWORD_HANDLER_PROTOCOL	November, 2015
2.6	1479 UEFI Properties TableClarification	November, 2015
2.6	1471 SD/eMMC PassThru Protocol update (follow up to mantis 1376)	November, 2015
2.6	1467 New API - EFI_ WIRELESS_MAC_CONNECTION_II_PROTOCOL	November, 2015
2.6	1466 UEFI Ram disk protocol	November, 2015
2.6	1452 Minor edits to 0001409	November, 2015
2.6	1414 Generalisation ofCommunication method in Appendix O	November, 2015
2.6	1409 EFI HII ImageEX protocol and EFI HII Image Decoder protocols	November, 2015
2.6	1408 EFI HII Font EX protocol and EFI HII Font Glyph Generator protocols	November, 2015
2.6	1402 Add EFI_BROWSER_ACTION_SUBMITTED	November, 2015
2.6	1383 Adding an EraseBlocks() function to a new protocol	November, 2015
2.6	1376 SD/eMMC PassThru Protocol	November, 2015
2.6	1357 ARMCPER extensions	November, 2015
2.5A	1481 new networkConfig2 protocol data structure has a magic number	October 2015
2.5A	1477 AllowCloseEvent toBeCalled within the Notification Function	October 2015
2.5A	1476 Update to Indicate thatCloseEvent UnregistersCorresponding Protocol Notification Registrations	October 2015
2.5A	1472 ATA Pass Thru Errata	October 2015
2.5A	1469 UNDI Errata - add more statistics	October 2015
2.5A	1468 Errata on UEFI Supplicant protocol	October 2015
2.5A	1451 Memory MapConsistency	October 2015
2.5A	1441 UEFI2.5A – UNDI ProtocolClarification	October 2015
2.5A	1426 UEFI 2.5 typo	October 2015
2.5A	1424 Incorrect link in Section 22.1 FMP GetImageInfo()	October 2015
2.5A	1421 Misc HTTP API typos	October 2015
2.5A	1420 Get NextHighMonotonicCountClarification	October 2015
2.5A	1419 Supplicant protocol using same GUID as TLS protocol	October 2015
2.5A	1418 Inconsistent issues in DNS	October 2015
2.5A	1417 Add HttpMethodMax to EFI_HTTP_METHOD enum	October 2015
2.5A	1410Clarifications in appendix O	October 2015
2.5A	1407 Networking errata - EFI_HTTP_STATUS typos	October 2015
2.5A	1405 Errata in table 271 in Appendix O	October 2015
2.5A	1399 Clarification for EFI_BROWSER_ACTION_ REQUEST_RECONNECT	October 2015
2.5A	1398 Errata update to the runtime GetVariable operation documentation	October 2015
2.5A	1388 Missed memory type fixes	October 2015
2.5A	1381 Remove informativeContent in 12.6.1	October 2015
2.5A	1365 7.4 Virtual Memory Services lists Section 2.3.2 through Section 2.3.4. incorrectly	October 2015
2.5A	1363 Short form URI device path	October 2015
2.5A	1209 UEFI networking APIChapter 2.6 requirements errors	October 2015
2.5A		October 2015
2.5	1364 Extend supplicant data type for EAP	April, 2015
2.5	1362 HTTPBoot typos/bugs	April, 2015
2.5	1360 Vendor Range for UEFI memory Types	April, 2015
2.5	1358 v2.5 amendment and v2.4 errata (missed implementation of Mantis 1089)	April, 2015
2.5	1353 SATA Device Path Node Errata	April, 2015
2.5	1352 Errata for 1263 and 1227
2.5	1350 Keyword Strings Errata	April, 2015
2.5	1348 ERRATA - Section 10.12 EFI _ADAPTER_INFORMATION_PROTOCOLCustom Types	April, 2015
2.5	1347Boot Manager Policy Errata	April, 2015
2.5	1346 Mantis 1288 Errata	April, 2015
2.5	1345 EFI_USB2_HC_PROTOCOL Errata	April, 2015
2.5	1342 DNS6 - friendly amendment for reviewBy USWG	April, 2015
2.5	1341 DNS4 - friendly amendment toBe reviewedBy USWG	April, 2015
2.5	1339 Errata in section 7.2.3.2 Hardware Error Record Variables	April, 2015
2.5	1309 Disallow EFI_VARIABLE_AUTHENTICATION from SecureBoot Policy Variables	April, 2015
2.5	1308 Fix typo’s found in the final/published UEFI 2.4 ErrataB spec	February, 2015
2.5	1304 Add IMA GE_UPDATABLE_VALID_WITH_VENDOR_ CODE to FMPCheck image	February, 2015
2.5	1303 Update the UEFI version to reflect new revision	February, 2015
2.5	1288 The Macro definitionConflict in EFI_SIMPLE_ TEXT_OUTPUT_PROTOCOL.SetAttribute() in UEFI 2.4B	February, 2015
2.5	1287 Errata: EFI Driver Supported EFI Version not matching the spec revision	February, 2015
2.5	1269Configuration Routing Protocol andConfiguration String Updates	February, 2015
2.5	1268 RAM Disk UEFI Device Path Node	February, 2015
2.5	1266 UEFI.Next Feature - IP_CONFIG2 Protocol	February, 2015
2.5	1263Customized Deployment of SecureBoot	February, 2015
2.5	1257Correct the typedef definitions for EFI_BOOT_SERVI CES/EFI_RUNTIME_SERVICES–Reiterate	February, 2015
2.5	1255 UFS Device Path Node Length	February, 2015
2.5	1254 SD Device Path	February, 2015
2.5	1251 EFI_REGULAR_EXPRESSION_PROTOCOL and EFI_IFR_MATCH2 HII op-code	February, 2015
2.5	1244 sections of the spec mis-arranged	February, 2015
2.5	1234 UEFI.Next feature - SmartCard edge protocol	February, 2015
2.5	1227 UEFI.Next feature - Platform recovery	February, 2015
2.5	1224 UEFI.Next - Adding support for No executable data areas	February, 2015
2.5	1223 UEFI.Next networking features -Chapter 2.6 requirements	February, 2015
2.5	1222 UEFI.Next feature -BMC/Service Processor Device Path	February, 2015
2.5	1221 UEFI.Next feature - REST Protocol	February, 2015
2.5	1220 UEFI.Next feature -Bluetooth	February, 2015
2.5	1219 UEFI.Next Feature - UEFI TLS API	February, 2015
2.5	1218 UEFI.Next feature - EAP2 Protocol	February, 2015
2.5	1217 UEFI.Next feature - WIFI support	February, 2015
2.5	1216 UEFI.next feature - DNS version 6	February, 2015
2.5	1215 UEFI.Next feature - DNS version 4	February, 2015
2.5	1214 UEFI.Next feature - HTTPBoot	February, 2015
2.5	1213 UEFI.Next feature - HTTP helper API	February, 2015
2.5	1212 UEFI.Next feature - HTTP API	February, 2015
2.5	1204 new UEFI USB Function I/O Protocol addition to the UEFI spec	February, 2015
2.5	1201 Exposing Memory Redundancy to OSPM	February, 2015
2.5	1199 Add NVM Express Pass Thru Protocol	February, 2015
2.5	1191 Add new SMBIOS3_TABLE_GUID in EFI_CONFIGURATION_TABLE	February, 2015
2.5	1186 AArch64BindingClarifications and errata	February, 2015
2.5	1183 New Protocol with 2 Function for PKCS7 Signature Verification Services	February, 2015
2.5	1174 errata - Error in EFI_IFR_PASSWORD logic flowchart	February, 2015
2.5	1167 Persistent Memory Type support	February, 2015
2.5	1166 hash 2 protocol errata	February, 2015
2.5	1163 InlineCryptographic Interface Protocol proposal	February, 2015
2.5	1159 Proposal for System Prep Applications	February, 2015
2.5	1158 errata -Boot managerClarification	February, 2015
2.5	1147–REDACT	February, 2015
2.5	1121 IPV6 support from UNDI	February, 2015
2.5	1109 SmartCard Reader	February, 2015
2.5	1103 Longer term NewCPER Memory Section	February, 2015
2.5	1091Clarification of handle to host FMP	February, 2015
2.5	1090 ESRT: EFI System Resource Table andComponent firmware updates	February, 2015
2.5	1071 New EFI_HASH2_PROTOCOL	February, 2015
2.4C	1308 Fix typo’s found in the final/published UEFI 2.4 ErrataB spec	January 2015
2.4C	1287 Errata: EFI Driver Supported EFI Version not matching the spec revision	January 2015
2.4C	1257Correct the typedef definitions for EFI_ _BOOT_SERVICES/EFI_RUNTIME_SERVICES	January 2015
2.4C	1244 sections of the spec misarranged	January 2015
2.4C	1211 EFI_LOAD_OPTION Definition	January 2015
2.4C	1209 Errata - UEFI networking APIChapter 2.6 requirements	January 2015
2.4C	1205 Errata for Hii Set item	January 2015
2.4C	1200 Universal Flash Storage (UFS) Device Path	January 2015
2.4C	1198 EFI_ ATA_PASS_THRU_PROTOCOLClarification	January 2015
2.4C	1194 Add EFI_IFR_FLAG_RECONNECT_REQUIRED	January 2015
2.4C	1192Cleanup GUID formatting issues	January 2015
2.4C	1186 AArch64BindingClarifications and errata	January 2015
2.4C	1185 errata - tcp api	January 2015
2.4C	1184 errata - snp modeClarification	January 2015
2.4C	1182 Errata - UEFI URI Device path issue	January 2015
2.4C	1174 errata - Error in EFI_IFR_PASSWORD logic flowchart	January 2015
2.4C	1173 EFI_IFR_NUMERIC Errata	July 11, 2014
2.4C	1172 EfiACPIMemoryNVS definition missing S4	July 11, 2014
2.4C	1170 Errata pxeBc apiClarifiation	July 11, 2014
2.4C	1169 Errata - volatile networking variableCleanup	July 11, 2014
2.4C	1168 MTFTP Errata	July 11, 2014
2.4C	1165 Option rom layout errata	July 11, 2014
2.4C	1162 Typo in ReinstallProtocolInterface() EFI 1.10 Extension section	July 11, 2014
2.4C	1150 Missing LineBreakCharacter (HII Errata)	July 11, 2014
2.4C	1147 EFI_USB2_H C_PROTOCOL.AsyncInterruptTransfer() Errata	July 11, 2014
2.4C	1141 UEFI errata - ia32/x64 vector register management	July 11, 2014
2.4C	1140UEFI Errata - image execution info table	July 11, 2014
2.4C	1139 UEFI Errata on the storage securityCommand protocol	July 11, 2014
2.4C	1066 Errata–reference to missing table (90) removed	July 11, 2014
2.4C	1043 Ability to refresh the entire form [newContent]	July 11, 2014
2.4C	1042 AddBrowser Action Request “reconnect”	July 11, 2014
2.4B	1146 Typos andBroken links	April 17, 2014
2.4B	1137 Typographic errors in the 2.4 ErrataB draft	April 16, 2014
2.4B	1128 URI device path node redux–supersedes (defunct) 1119	April 4, 2014
2.4B	1127 USB Errata - unnecessary restriction on UEFI interrupt transfer types	March 27, 2014
2.4B	1124 Adding text description for NVMe device node	March 27, 2014
2.4B	1122Correct misleading language in the UEFI 2.4a specification about the EFI_ADAPTER_INFORMATION_PROTOCOL.E FI_ADAPTER_INFO_GET_SUPPORTED_TYPES function	March 27, 2014
2.4B	1120 Make time stamp handlingConsistent around all of the networking API’s	March 27, 2014
2.4B	1118 Network Performance EnhancementsConcerning Volatile Variables	March 27, 2014
2.4B	1115Clarification on the usage of XMM/FPU instructions from within a UEFI Runtime Service on an x64 processor	March 27, 2014
2.4B	1111 Errors in DisconnectController() returnCode descriptions	March 27, 2014
2.4B	1101 Errata – ReinstallProtocolInterface	March 27, 2014
2.4B	1092Clarification to PCI Option ROM Driver Loading Description	March 27, 2014
2.4B	1085 Error–added in missing text approved for 2.4A	April 17, 2014
2.4B	1014 HIIConfig Access Protocol Errata	April 3, 2014
2.4 A	1089 Short-termCPER Memory Section errata	Nov. 14, 2013
2.4 A	1088 Add revision #define to EFI_FILE_PROTOCOL	Nov. 6, 2013
2.4 A	1085 Issues with Interactive password	Nov.14, 2013
2.4 A	1082 Mistake in 2.3.5.1 / 2.3.6.2 Handoff State	Nov. 6, 2013
2.4 A	1081 Update Install Table protocol to deal with duplicate tables	Nov. 6, 2013
2.4 A	1079 UEFI 2.4: Remove repetitive “the” (typo)	Nov. 6, 2013
2.4 A	1078 Adjust some text for handling EFI_BROWSER_ACTION_CHANGING	Nov. 6, 2013
2.4 A	1077 Fix wording in EVT_SIGNAL_EXIT_BOOT_SERVICES	Nov. 6, 2013
2.4 A	1076 typo in UEFI v2.3.1d and v2.4	Nov. 6, 2013
2.4 A	1075Clarifications to Table 88. Device Node Table (Device Node to TextConversion)	Nov. 6, 2013
2.4 A	1074 AddClarifications on DMA requirements for PCI_IO	Nov. 6, 2013
2.4 A	1073 Add requirement for EFI_USB_IO_PROTOCOL	Nov. 6, 2013
2.4 A	1066 Errata - ISCSI IPV6 Root PathClarification	Nov. 6, 2013
2.4 A	1064 AIP Errata	Nov. 6, 2013
2.4 A	1063Correction to GPT expression for SizeofPartitionEntry	Nov. 6, 2013
2.4 A	1062 EFI_CERT_X509_GUID does not specify theCertificate encoding	Nov. 6, 2013
2.4 A	1061 UEFI 2.4 section 2.6.2 and 2.6.3 don’t use protocol hyperlinksConsistently	Nov. 6, 2013
2.4 A	1060 SlightClarification to FMP Authentication Requirments	Nov. 6, 2013
2.4 A	1059Clarification of a return statusCode of HASH protocol	Nov. 6, 2013
2.4 A	1058Correct mistake in the system table revision	Nov. 6, 2013
2.4 A	1056 text modification to definition of EF I_FIRMWARE_IMAGE_DESCRIPTOR_VERSION 2	Nov. 6, 2013
2.4 A	1055 Disk IO 2 errata	Nov. 6, 2013
2.4 A	1054 Deprecate 6 Hash Algorithms with inconsistent usage	Nov. 6, 2013
2.4 A	1053 Reduce Name space ofCapsule Result variable to increase performance	Nov. 6, 2013
2.4 A	1035 PCI Option ROM Errata (five figures)	Nov. 6, 2013
2.4	997 Driver Health Protocol errorCodes	April 25, 2013
2.4	993 (original ticket–supersededBy 1026)
2.4	992 Adapter Information Protocol (AIP)	April 25, 2013
2.4	991 Greater than 256 NICs support on UNDI	April 25, 2013
2.4	968 HII Forms op-code for displaying a warning message	April 25, 2013
2.4	966 Spec typos	April 25, 2013
2.4	964 Disk IO 2 Protocol to support Async IO	April 25, 2013
2.4	963 Add new device path node NVM Express devices	April 25, 2013
2.4	956 Require network drivers to return EFI_NO_MEDIA	April 25, 2013
2.4	946 ForbidCreation of non-spec variables in EFI_GLOBAL_VARIABLE namespace	April 25, 2013
2.4	920 Add a variable for indicating out ofBand key modification	April 25, 2013
2.4	905 Need more granularity in EFI_RESET_TYPE to support platform specific resets	April 25, 2013
2.4	1052 UEFI 2.4 Draft April 25th -Corrections to ARM sections	May 16, 2013
2.4	1050 2.4 Draft April 25 has missing text for ECR 1009	May 16, 2013
2.4	1049 2.4 Draft April 25 has missing text for ECR 1008	May 16, 2013
2.4	1048Comment against UEFI 2.4 - NVMe related	May 16, 2013
2.4	1047Comment on Feb 25th draft - fix alignment issue	May 16, 2013
2.4	1045 PCI OpROM Device ListChanges to section 14.2	June 28, 2013
2.4	1044Corrections to Mantis 1015, Interruptible driver diagnostics	May 16, 2013
2.4	1037 Add 2.4 to the system table version	May 16, 2013
2.4	1036Comments on April 25 Draft	May 16, 2013
2.4	1033 HiiConfigAccess->ExtractConfig StatusCodes Errata	May 16, 2013
2.4	1032 HiiConfigRouting->ExtractConfig StatusCodes Errata	May 16, 2013
2.4	1031 NVMe subtypeConflict errata	April 25, 2013
2.4	1029 Method for delivery ofCapsule on disk; Method for reportingCapsule processing status	April 25, 2013
2.4	1026 (supersedes 993) Update to the AArch64 proposedBindingChange	April 25, 2013
2.4	1024Clarification to the NVMe Device Path text descriptions	April 25, 2013
2.4	1023 Definition ofCapsule format to deliver update image to firmware management protocol	April 25, 2013
2.4	1022 adapter information protocol for NIC iSCSI and FCoEBootCapabilities andCurrentBooot Mode.	April 25, 2013
2.4	1017 AIP Instance - FCOE SAN MAC Address	April 25, 2013
2.4	1016 AIP Instance - Image Update	April 25, 2013
2.4	1015 Interruptible driver diagnostics	April 25, 2013
2.4	1009 Enable hashes ofCertificates toBe used for revocation, and timestamp support	April 25, 2013
2.4	1008 New Random Number Generator / Entropy Protocol	April 25, 2013
2.4	1007Create a new Security Technologies section to avoidBlurring with SecureBoot	April 25, 2013
2.4	1002 Timestamp Protocol	April 25, 2013
2.3.1D	996 UEFI 2.0 version number still in the 2.3.1C spec	April 3, 2013
2.3.1D	995CSA linkChange	April 3, 2013
2.3.1D	994 Spec typos	April 3, 2013
2.3.1D	990 EFI_ATA_PASS_THRU need oneClarification if it supports ATAPI device	April 3, 2013
2.3.1D	989Clarify hot-remove responsibility of aBus Driver	April 3, 2013
2.3.1D	988 EFI_BLOCK_IO2_PROTOCOLBlocksChild from stopping while doing non-blocking I/O	April 3, 2013
2.3.1D	987 EFI_BLOCK_IO2_PROTOCOL has aCopy pasteBug describing the Token Parameter	April 3, 2013
2.3.1D	980 Errata on SNP Media detect	April 3, 2013
2.3.1D	978 Error Retun IndicatesCapsule requiresBoot Services	April 3, 2013
2.3.1D	977 missing statement	April 3, 2013
2.3.1D	976BrowserCallback text update to description	April 3, 2013
2.3.1D	975 UNDI errata to add missing memory type definitions	April 3, 2013
2.3.1D	974 UNDI IncorrectCPB function names ECR	April 3, 2013
2.3.1D	973 UNDI Mem_Map()Clarification	April 3, 2013
2.3.1D	972 ISCSI DHCP6Boot	April 3, 2013
2.3.1D	971 typo	April 3, 2013
2.3.1D	970 Typo section 28.3.8.3.41 EFI_IFR_MODAL_TAG	April 3, 2013
2.3.1D	965 File IO Async extenstion	April 3, 2013
2.3.1D	962 Remove 2.3 table revision number	April 3, 2013
2.3.1D	960 Typo in netboot6 description	April 3, 2013
2.3.1D	959 InstallAcpiTable() does not say what to do when an attempt is made to install a duplicate table	April 3, 2013
2.3.1D	955Clearing The Platform Key Errata	April 3, 2013
2.3.1D	954 LoadImage Errata	April 3, 2013
2.3.1D	953 Need text definitions for Device Path Media Type Subtype 6/7	April 3, 2013
2.3.1D	952Clarification of requirements to update timestamp associated with authenticated variable	April 3, 2013
2.3.1D	950 IndeterminateBehavior for attribute modifications mayCause security issues	April 3, 2013
2.3.1D	949 PCI IO.GetBarAttributes needs adjustment - - Address Space Granularity field	April 3, 2013
2.3.1D	944 Errata - Replace RFC reference	April 3, 2013
2.3.1D	943 Errata - Proposed updates to required interfaces inChapter 2.6	April 3, 2013
2.3.1D	942 ExportConfig() description does not make sense	April 3, 2013
2.3.1D	941 Add OEM StatusCode ranges to EFI StatusCode Ranges Table	April 3, 2013
2.3.1D	938 InstallMultipleProtocolInterface() is missing StatusCode Returned values	April 3, 2013
2.3.1D	935ClarifyChaining requirements with regards to the Platform Key	April 3, 2013
2.3.1D	934 Missing Figures and typos	April 3, 2013
2.3.1D	930Clarify usage of EFI Variable Varstores in HII	April 3, 2013
2.3.1D	928Best Matching Language algorithm	April 3, 2013
2.3.1D	926 UEFI Image VerificationClarification	April 3, 2013
2.3.1D	924 New ErrorCode to handle reporting of IPV4 duplicate address detection	April 3, 2013
2.3.1D	1021 ATA_PASS_THRU on ATAPI device handle.	April 3, 2013
2.3.1D	1020Clarify HII variable store definitions.	April 3, 2013
2.3.1D	1019 Alignment RequirementsClarification	April 3, 2013
2.3.1D	1018 HII Font Errata	April 3, 2013
2.3.1D	1013 HII Errata	April 3, 2013
2.3.1D	1012 Touchup to text of GPT	April 3, 2013
2.3.1D	1011 Typo regarding Debug Port in UEFI Spec	April 3, 2013
2.3.1D	1003 Missing “(” in section 11.7	April 3, 2013
2.3.1D	1000Clarification to the IFR_REF4 opcode	April 3, 2013
2.3.1C	921 Length of IPv6 Device Path is incorrect	June 13, 2012
2.3.1C	917 UNDI drive does not need toBe initialized as runtime driver	June 13, 2012
2.3.1C	915 For x64,Change Floating Point DefaultConfiguration to Double-Extended Precision	June 13, 2012
2.3.1C	914 Error Descriptor Reset FlagClarification	June 13, 2012
2.3.1C	913 Enum definition does not match what ourCurrentCompilers implement.	June 13, 2012
2.3.1C	912 UEFI 2.3.1 Type	June 13, 2012
2.3.1C	909 Update to returnCodes for AllocatePool / AllocatePages	June 13, 2012
2.3.1C	907 iSCSI Device Path error	June 13, 2012
2.3.1C	882 Indications Variable - OS/FW feature &CapabilityCommunication	June 13, 2012
2.3.1C	882 Indications Variable - OS/FW feature &CapabilityCommunication	June 13, 2012
2.3.1C	874 Provide a mechanism for providing keys in setup mode	June 13, 2012
2.3.1C	831 PXEBootCSA Type definitionCleanup	June 13, 2012
2.3.1B	896 StartImage andConnectController returnCodes	April 10, 2012
2.3.1B	893 SMMCommunication ACPI Table Update	April 10, 2012
2.3.1B	891Component Name Protocol References	April 10, 2012
2.3.1B	890 DriveConfiguration Protocol Phantom.	April 10, 2012
2.3.1B	888 typo in EFI_USB_HC Protocol	April 10, 2012
2.3.1B	887 union is declared twice in same section	April 10, 2012
2.3.1B	885 Errata in the GPT Table structureComment	April 10, 2012
2.3.1B	884 EFI_BOOT_KEY_DATA relies on implementation-definedBehavior	April 10, 2012
2.3.1B	881 netboot6 - multicast versus unicast	April 10, 2012
2.3.1B	880 netboot6Clarification/errata	April 10, 2012
2.3.1B	879 Reference to unsupported specification in SCSIChapter (14.1)	April 10, 2012
2.3.1B	878 Updated HII “Selected Form”Behaviors to Reflect NewCallback Results	April 10, 2012
2.3.1B	877 TableChecksum updateBy the A CPI_TABLE_PROTOCOL.InstallAcpiTable	April 10, 2012
2.3.1B	876 ToClarify EDID_OVERRIDE attribute definitions and expected operations	April 10, 2012
2.3.1B	873 Section 9.3.7 incorrectly assumes that all uses ofBBS device paths are non-UEFI	April 10, 2012
2.3.1B	872Change to SIMPLE_TEXT_INPUT_EX_PROTOCOL.Re gisterKeyNotify/UnregisterKeyNotify	April 10, 2012
2.3.1B	871 Typo in InstallMultipleProtocolInterfaces	April 10, 2012
2.3.1B	870Clarify FrameBufferSize definition under EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE struct	April 10, 2012
2.3.1B	869 Reference to FIPS 180 inChapter 27.3 is obsolete and incorrect	April 10, 2012
2.3.1B	867Clarify requirment for use of EFI_HASH_SERVICE_BINDING_PROTOCOL	April 10, 2012
2.3.1B	866 PK, KEK, db, dbx relationsClarification	April 10, 2012
2.3.1B	865 Modify Protective MBRBootIndicator definition	April 10, 2012
2.3.1B	864 Typo in Question-Level Validation section	April 10, 2012
2.3.1B	863 Attributes of the Globally Defined Variables	April 10, 2012
2.3.1B	862 User identity typo	April 10, 2012
2.3.1B	861 Globally Defined Variables Errata	April 10, 2012
2.3.1B	858 Superfluous and incorrect image hash description	April 10, 2012
2.3.1B	857 Absolute pointer typo	April 10, 2012
2.3.1B	855Clarification of UEFI driver signing/Code definitions	April 10, 2012
2.3.1B	853 The EFI_HASH_PROTOCOL.Hash() description needsClarification on padding responsibilities	April 10, 2012
2.3.1B	852 Various EFI_IFR_REFRESH_ID errata.	April 10, 2012
2.3.1B	851 For EFI_IFR_REFRESH opcode,Clarify RefreshInterval = 0 means no auto-refresh.	April 10, 2012
2.3.1B	850Clarification of responsibility for array allocation in EFI_HASH_PROTOCOL	April 10, 2012
2.3.1B	849 IFR EFI_IFR_MODAL_TAG_OP is also valid under EFI_IFR_FORM_MAP_OP	April 10, 2012
2.3.1B	848Clarification of semantics of SecureBoot variable	April 10, 2012
2.3.1B	847 When enrolling a PK, the platform shall not require a reboot to leave SetupMode	April 10, 2012
2.3.1B	845 EFI_SCSI_PASS_THRU_PROTOCOL replacement	April 10, 2012
2.3.1B	842 Text to explain how the UEFI revision is referred	April 10, 2012
2.3.1B	836 StructureComment for EFI_IFR_TYPE_VALUE references unknown value type.	April 10, 2012
2.3.1B	828 Network Driver Options	April 10, 2012
2.3.1B	826Comments against Mantis 790	April 10, 2012
2.3.1B	825 DMTF SMCLP errata	April 10, 2012
2.3.1B	819 Mantis 715 was not fully implemented	April 10, 2012
2.3.1B	812 Errata – DUID-UUID usage	April 10, 2012
2.3.1B	809 Errata – Messaging Device PathClarification	April 10, 2012
2.3.1B	808 Errata –Boot File URL	April 10, 2012
2.3.1B	807 Give specific TPL rules to Stall()Boot services	April 10, 2012
2.3.1B	771 SHA1 and MD5 references	April 10, 2012
2.3.1A	MinorCorrections in toes to tickets 772, 785, 794, 804, also formattingCorrection for _WIN_CERTIFICATE_UEFI_GUID typedef’s parameters	September 7, 2011
2.3.1A	820 Driver Health Needs to have Mantis 0000169 implemented	August 17, 2011
2.3.1A	819 ECR715 was not fully implemented	August 17, 2011
2.3.1A	806 Text update to Driver Health Description -Clarify role of user interaction	August 17, 2011
2.3.1A	805Correct Wrong Palette Information in 28.3.7.2.3 example	August 17, 2011
2.3.1A	804ClarifyContraints and alternatives when enrolling PK, KeK, db or dbx keys	August 17, 2011
2.3.1A	803 Fix AcpiExp device node text description.	August 17, 2011
2.3.1A	801ClarifyIFR Opcode Summary and Description #4	August 17, 2011
2.3.1A	800Clarify IFR Opcode Summary and Description #3	August 17, 2011
2.3.1A	797Clarify IFR Opcode Summary and Description #2	August 17, 2011
2.3.1A	796Clarify IFR Opcode Summary and Description #1	August 17, 2011
2.3.1A	795 Typo in ReadKeyStrokeEx()	August 17, 2011
2.3.1A	794 Incomplete text describingClearing of Platform Key	August 17, 2011
2.3.1A	793 Inconsistent wording about RemainingDevicePath	August 17, 2011
2.3.1A	790 Add warning to ReadKeyStrokeEx for partial key press	August 17, 2011
2.3.1A	789Clarify HII opcode definition	August 17, 2011
2.3.1A	788 SasEx entry in Table 86-Device Node TableContains optional Reserved entry that does not exist in device path	August 17, 2011
2.3.1A	786 PCI I/O Dual AddressCycle attributeClarification	August 17, 2011
2.3.1A	785 Allowing more general use of UEFI 2.3.1 Variable time-based authentication	August 17, 2011
2.3.1A	780 Errata in returnCode descriptions	August 17, 2011
2.3.1A	778 EFI_HI I_CONFIG_ACCESS_PROTOCOL.CallBack() Errata	August 17, 2011
2.3.1A	777 Specified signature sizes incorrect in Section 27.6.1	August 17, 2011
2.3.1A	776 Clarifycomputation of EFI_VARIABLE_ AUTHENTICATION_2 hash value	August 17, 2011
2.3.1A	774 Define EFI_BLOCK_IO_PROTOCOL_REVISION3	August 17, 2011
2.3.1A	773Clarify the value for opcode EFI_IFR_REFRESH_ID_OP	August 17, 2011
2.3.1A	772 Definition of EFI_IMAGE_SECURITY_DATABAE_GUID incorrect	August 17, 2011
2.3.1A	770 Remove references to UEFI 2.1 spec	August 17, 2011
2.3.1A	767 The ReadBlocks function forBlockIO andBlockIO2 need synchronization	August 17, 2011
2.3.1A	212 (revisit) final sentence section 28.2.15 missing final words.	April 21, 2011
2.3.1	765 ECR to limit the hash and encryption algorithms used with PKCSCertificates	April 5, 2011
2.3.1	762 DevicePath in the Image Execution Information Table.	April 5, 2011
2.3.1	761 Table 195. Information for Types of Storage	April 5, 2011
2.3.1	760 SuggestedChanges to 2.3.1 final draft spec	April 5, 2011
2.3.1	759 UEFI Errata - wincerts for rest of hash algorithms	April 5, 2011
2.3.1	755 Errata in Legacy MBR table and Legacy MBR GUID	April 5, 2011
2.3.1	754 USB timeout parameter mismatch.	April 5, 2011
2.3.1	751 Fix USB HC2 erroneous references to IsSlowDevice	March 11, 2011
2.3.1	750 Fix section 27.2.5 “related definitions” re: RSA public key exponent	March 11, 2011
2.3.1	749 Fix Table 10 (Global Variables) WithCorrect Attributes	March 11, 2011
2.3.1	748Clarify Standard GUID Text Representation	March 11, 2011
2.3.1	744 ProcessorContext information structure definition notClear	March 11, 2011
2.3.1	741 Errata:Corrected text for section 7.2.1.4 step 7	March 11, 2011
2.3.1	740 Errata: signatureheadersize inconsistencyCorrections	April 6, 2011
2.3.1	736 Insert SMMCommunication ACPI Table and related data structures to the UEFI Specification	April 5, 2011
2.3.1	735Clarification on Tape Header Format	March 11, 2011
2.3.1	734 SecureBoot variable	April 5, 2011
2.3.1	733 Errata: 27.6.1 signatureheadersize definition	March 11, 2011
2.3.1	732 Amendment to Mantis 711: section 7.2.1.6	March 11, 2011
2.3.1	729 Errata:Clarification of Microsoft references in appendix Q	March 11, 2011
2.3.1	728 Netboot 6 errata - DUID-UUID	March 11, 2011
2.3.1	727 Errata on returnCode for User Info Identity policy record	March 11, 2011
2.3.1	726 Errata/clean-up of EFI_DHCP4_TRANSMIT_RECEIVE_ TOKEN definition	March 11, 2011
2.3.1	724 SetVariable Update 2	March 11, 2011
2.3.1	723 User Identification (UID) Errata – EFI User Manager Notify & EnrollClarification	April 5, 2011
2.3.1	722 User Identification (UID) Errata –Credential Provider EnrollClarification	April 5, 2011
2.3.1	721 User Identification (UID) Errata – SetInfoClarification	March 11, 2011
2.3.1	720 User Identification (UID) Errata –Credential Provider EnrollClarification	March 11, 2011
2.3.1	716 EFI_EXT_SCSI_PASS_THRU_ PROTOCOL.GetNextTarget() IN OUT parameter Target input value shallBe 0xFFs	March 11, 2011
2.3.1	715CPER Record and section fieldClarification	March 11, 2011
2.3.1	713 Remove the errata revision from the EFI_IFR_VERSION format.	March 11, 2011
2.3.1	711 SetVariable Update	March 11, 2011
2.3.1	709 NewCallback() Action Requests Related To Individual Forms.	Feb. 3, 2011
2.3.1	708 Errata (non-blockingBLOCK IO)	April 5, 2011
2.3.1	707 Errata revision in the EFI_IFR_VERSION format	Feb. 3, 2011
2.3.1	705 REPC signature definition stillConfusing	Feb. 3, 2011
2.3.1	704 Unload() definition is wrong	Feb. 3, 2011
2.3.1	702Clarifications on Variable Storage for Questions	Feb. 3, 2011
2.3.1	696 Update System Table with this new #define for EFI_SYSTEM_TABLE_REVISION	Feb. 3, 2011
2.3.1	695 Add Port Ownership probing	Feb. 3, 2011
2.3.1	687 Update System Table with this new #define for 2.3.1	Jan. 17, 2011
2.3.1	686 HII -Clarify FormsBrowser ‘standard’ user interfactions.	Feb. 3, 2011
2.3.1	685 HII - New op-code to enable event initiated refresh ofBrowserContext data	Feb. 3, 2011
2.3.1	682 [UCST] Modal Form	Feb. 3, 2011
2.3.1	681 Typo: Pg. 56	Jan. 17, 2011
2.3.1	680 Netboot6 handleClarification	Jan. 17, 2011
2.3.1	679 UEFI Authenticated Variable & Signature Database Updates	Jan. 17, 2011
2.3.1	678 Section 27.6.2: Imagehash reference needs toBe removed	Jan. 17, 2011
2.3.1	677 Section 27.2.5 & 27.6.1: Typo in X509 Signature Type	Jan. 17, 2011
2.3.1	674 Section 3.2: Missing variable type for SetupMode variable	Jan. 17, 2011
2.3.1	671 Errata: USB device path example is incorrect	Jan. 17, 2011
2.3.1	668 LUN implementations are notConsistent	Feb. 3, 2011
2.3.1	661 USB 3.0 Updates	Oct. 29, 2010
2.3.1	645 Non-blocking interface forBLOCK oriented devices (BLOCK_IO_EX transition toBLOCK_IO_2)	Oct. 29, 2010
2.3.1	634 FormsBrowser DefaultBehavior	Jan. 17, 2011
2.3.1	634 FormsBrowser DefaultBehavior	Oct. 29, 2010
2.3.1	616 Security ProtocolCommand to support encrypted HDD	Jan. 17, 2011
2.3.1	616 Security ProtocolCommand to support encrypted HDD	Oct. 29, 2010
2.3.1	612 UEFI system Partition FAT32 data Region Alignment	Oct. 29, 2010
2.3.1	484 Key Management Service Protocol	Oct. 28, 2010
2.3.1	484 Key Management Service (KMS) Protocol	Oct. 29, 2010
2.3.1	478 (REVISIT) Update to ALTCFG references	March 11, 2011
2.3 D	667Clarification to the UEFIConfiguration Table definition	Oct. 28, 2010
2.3 D	664 Appendix update for IPV6 networkBoot	Oct. 28, 2010
2.3 D	663 Update ARM PlatformBinding to allow OS loader to assume unaligned access support is enabled	Nov. 10, 2010
2.3 D	662 ARM ABI errata	Oct. 28, 2010
2.3 D	659Clarify section length definition in the error record	Oct. 28, 2010
2.3 D	653 Errata to the Appendix N (Common Platform Error Record)	Oct. 28, 2010
2.3 D	652Clarification to the TimeZone value usage	Oct. 28, 2010
2.3 D	651 update to IPSec for tunnel mode support	Oct. 28, 2010
2.3 D	650 networking support errata	Oct. 28, 2010
2.3 D	638 Add facility for dynamic IFR dynamicCross-references	Oct. 28, 2010
2.3 D	538 IPV6 PXE	Oct. 28, 2010
2.3C	640 String ReferenceCleanup	July 14, 2010
2.3C	639Callback() does not describe FORM_OPEN/FORM_CLOSEBehavior	July 14, 2010
2.3C	637Clarification for Date/Time Question usage in IFR expressions.	July 14, 2010
2.3C	636 Mistaken Reference to “Date” inside ofBoolean question description	July 14, 2010
2.3C	635 Missing GUID label forConfig Access protocol	July 14, 2010
2.3C	633 Explicitly Specify ACPI Table Signature Format	July 14, 2010
2.3C	632ClarifyBlock IO ReadBlocks and WriteBlocks functions handling of media stateChange events	July 14, 2010
2.3C	625 Minor typo in surrogateCharacter description section	July 14, 2010
2.3C	622 Identify() function errata	July 14, 2010
2.3C	621 Typos in an EFI_HII_CONFIG_ACCESS_ PROTOCOL.Callback() member	July 14, 2010
2.3C	620Carification of need for Path MTU support for IPV4 and IPV6	July 14, 2010
2.3C	613 PAUSE Key	July 14, 2010
2.3C	611 LanguageCorrection requested for InstallProtocolInterface() and InstallConfigurationTable(), Ref# 583	July 14, 2010
2.3C	610 RSA data structureClarification	July 14, 2010
2.3C	609 StartImage returnCode update	July 14, 2010
2.3C	583 How do we know an EFI_HANDLE is Valid/Invalid	July 14, 2010
2.3C	508 Update networking references, incl ipv6	July 14, 2010
2.3B	608 more media detectClean-up	Feb. 24, 2010
2.3B	605Clarify user identity Find API	Feb. 24, 2010
2.3B	601 UNDI update as part of media detectChanges	Feb. 24, 2010
2.3B	600 Update toConfigAccess/ConfigRouting	Feb. 24, 2010
2.3B	598 ARP is only an IPV4Concept.	Feb. 24, 2010
2.3B	590 Media detectClean-up	Feb. 24, 2010
2.3B	589 Device path representation of IPv4/v6 text	Feb. 24, 2010
2.3B	588 UEFI User Identity - ReturnCodes	Feb. 24, 2010
2.3B	587 UEFI User Identity - NamingConsistency	Feb. 24, 2010
2.3B	586Clarification of PXE2.1 specification for IPV4 interoperability issues	Feb. 24, 2010
2.3B	585 Errata to EFI_IFR_SET op-code	Feb. 24, 2010
2.3B	584 EFI_PXE_BASE_CODE_DHCPV6_PACKET missing for pxeBc protocol	Feb. 24, 2010
2.3B	583 How do we know an EFI_HANDLE is Valid/Invalid	Feb. 24, 2010
2.3B	580 ACPI_SUPPORT_PROTOCOLClarifications related to FADT and the DSDT/FACS	Dec. 15, 2009
2.3B	578 ATA Passthrough updates / questions	Dec. 15, 2009
2.3B	577Clarifications on the user identity protocol	Dec. 15, 2009
2.3B	576Clarifications in the Routing Protocol	Dec. 15, 2009
2.3B	575 Machine hand-off/MP state modification	Feb. 24, 2010
2.3B	574 Add an “OPTIONAL” tag to a parameter in NewPackageList	Dec. 15, 2009
2.3B	573 EFI_DESCRIPTION_STRING and EFI_DESCRIPTION_BUNDLE adjustments	Feb. 24, 2010
2.3B	572 EFI_IFR_SECURITY shouldBe EFI_IFR_SECURITY_OP in Table 194	Dec. 15, 2009
2.3B	568 ATA_STATUS_BLOCK name errata	Dec. 15, 2009
2.3B	567 Various miscellaneous typos/updates	Feb. 24, 2010
2.3B	566 Minor update to HII->NewString function description	Dec. 15, 2009
2.3B	560Correct erroneous example in ExtractConfig()	Dec. 15, 2009
2.3B	559 Extraneous “default” tag in EFI_IFR_SECUITY grammar	Dec. 15, 2009
2.3B	558Clarify VLANConfig publication requirements	Dec. 15, 2009
2.3B	557Corrected Image Execution Information omission & ambiguity	Dec. 15, 2009
2.3B	556 additional IPSec errata/issues	Dec. 15, 2009
2.3B	549Binary prefixChange	Dec. 15, 2009
2.3B	547Clean-Up In HII Sections	Dec. 15, 2009
2.3B	546 typo in GOP definiton	Dec. 15, 2009
2.3B	545 Action parameter of the EFI_HI I_CONFIG_ACCESS_PROTOCOL.CallBack()	Dec. 15, 2009
2.3B	542 Device Path DescriptionChanges	Dec. 15, 2009
2.3B	540 Register name usage	Dec. 15, 2009
2.3B	539CHAP node fix for iSCSI	Dec. 15, 2009
2.3B	537 Add missing ACPI ADR Device Path Representation	Dec. 15, 2009
2.3B	536 IPSec errata	Dec. 15, 2009
2.3B	534 Size of Partition Entry restriction	Dec. 15, 2009
2.3B	533 GPT editorialCleanup	Dec. 15, 2009
2.3B	532 “LegacyBIOSBootable” GPT attribute	Dec. 15, 2009
2.3B	531Clarify HII Variable Storage	Dec. 15, 2009
2.3B	519 AddConsole table (chapt 11) for EFI_SIMPLE_TEXST_INPUT_EX_PROTOCOL	Dec. 15, 2009
2.3B	518 Typos in the UEFI2.3 specification	Feb. 24, 2010
2.3B	515 Authenticated VariablesClarification	Feb. 24, 2010
2.3B	514 HIIConfiguration String SyntaxClarification	Feb. 24, 2010
2.3B	507Clarify ACPI Protocol’s position onChecksums	Dec. 15, 2009
2.3B	479 TPM guideline added to section 2.6.2	Dec. 15, 2009
2.3B	476 Text adjustment toConfigAccess &ConfigRouting	Dec. 15, 2009
2.3B	460 Section 2.6 languageChange	Dec. 15, 2009
2.3B	454 Dynamic support of media dectection - network stack	Dec. 15, 2009
2.3B	431 UEFI 2.3 Feb Draft: Section 30.4	Feb. 24, 2010
2.3B	301 Errata to the Authentication Protocol	Dec. 15, 2009
2.3B	215 previously added to Device Driver (wrong), nowBusDriver (correct)	Dec. 15, 2009
2.3A	522Bugs in EFI_CERT_BLOCK_RSA_2048_SHA256, ISCSI device path,CHAP device path	Sept 15, 2009
2.3A	518 typos	Sept 15, 2009
2.3A	517 IP stack related protocol update	Sept 15, 2009
2.3A	516 User Identity ProtocolBugs	Sept 15, 2009
2.3A	513 add support for gateways in ipv4 & ipv6 device path nodes	Sept 15, 2009
2.3A	506 TCP6/MTFTP6 StatusCode Definition	Sept 15, 2009
2.3A	505 TCP4/MTFTP4 statusCodes	Sept 15, 2009
2.3A	490Correction 28.2.5.6, Table 185. Information for Types of Storage	Sept 15, 2009
2.3A	478 Update to ALTCFG references	Sept 15, 2009
2.3A	477 Text adjustment toConfigAccess/ConfigRouting	Sept 15, 2009
2.3	463 Update EFI_IP6_PROTOCOL.Neighbors() API	May 7, 2009
2.3	462 ExitBootServices timers deavtivation	May 7, 2009
2.3	461IP4 Mode Data definition update	May 7, 2009
2.3	460Chapter 2.6 language update	May 7, 2009
2.3	457Change KeyData.PackedValue to 0x40000200, page 63.	May 7, 2009
2.3	456 How to handle PXEBoot w/o NII Section 21.3	May 7, 2009
2.3	454 Dynamic support of media detection - network stack	May 7, 2009
2.3	453 Errata to support dynamic media detection - UNDI	May 7, 2009
2.3	452 Support to dynamically detect media errata - SNP	May 7, 2009
2.3	450 Missing opcode headers and formatting, section 28.3.8.3.x.	May 7, 2009
2.3	449 Add missing EFI_IFR_GET, EFI_IFR_SET and EFI_IFR_MAP to the syntax.Section 28.2.5.7.	May 7, 2009
2.3	448 Section 28.2.5.4 Questions, Syntax, Update question-option-tag; Add EFI_IFR_READ and EFI_IFR_WRITE in the question syntax.	May 7, 2009
2.3	447Section 28.2.5.11.2 Moving Forms, Update line that starts with EFI_IFR_FORM to: EFI_IFR_FORM or EFI_IFR_FORM_MAP (and all references in EFI_IFR_REF)	May 7, 2009
2.3	446 Section 28.2.5.2 Forms, Syntax,Change 3rd line to: form := EFI_IFR_FORM form-tag-list | EFI_IFR_FORM_MAP form-tag-list	May 7, 2009
2.3	445 Table 194: EFI_IFR_FORM_MAP_OP, 2ndColumn shouldBe 0x5d (not 05xd)	May 7, 2009
2.3	444 Form Set Syntax: Section 28.2.5.1.1, section shouldBe subheading, not heading level 5; Section 28.2.5.1, Syntax, line 3, text after := is not aligned with other text on line 2, 4	May 7, 2009
2.3	443 Section 28.3.8.3.38, EFI_IFR_MAP, Prototype, line 4, outdent 2 spaces.	May 7, 2009
2.3	442 Section 28.3.8.3.64, EFI_IFR_SET, Prototype, lines 3-8, indentBy 2 spaces	May 7, 2009
2.3	440Change the defined type of EFI_STATUs from INTN to UINTN	May 7, 2009
2.3	439 Incorrect definitions of UEFI_CONFIG_LANG and UEFI_CONFIG_LANG_2 in UEFI 2.3 Feb18 draft	Feb 25, 2009
2.3	438 UEFI 2.3 Feb 13 Draft:Chapter 28 Formatting Issues	Feb 18, 2009
2.3	437 Errata to 2.3 draft material from UEFI Spec 2_3_Draft_Jan29	Feb 18, 2009
2.3	436 UEFI 2.3 split Figure 88 into 3 figures	Feb. 12, 2009
2.3	435 Partition SignatureClarification	Feb. 12, 2009
2.3	434 UEFI 2.3 Feb Draft: 28.3.8.3.58	Feb. 12, 2009
2.3	432 UEFI 2.3 Feb Draft: Appendix M.	Feb. 12, 2009
2.3	431 UEFI 2.3 Feb Draft: Section 30.4	Feb. 12, 2009
2.3	418Change Appendix O from “UEFI ACPI Table” to “UEFI ACPI Data	Feb 18, 2009
2.3	413Correct the definition of UEFI_CONFIG_LANG	Feb 18, 2009
2.3	410 UNDIBuffer usage	Feb 18, 2009
2.3	408 ARMBindingCorrections	Feb. 12, 2009
2.3	406 Missing EFI System Table Revision In UEFI 2.3 Draft	Feb. 12, 2009
2.3	395 New “Non-removable MediaBootBehavior” section	Feb. 12, 2009
2.3	394 Omission in EFI_USB2_HC_PROTOCOL	Feb. 12, 2009
2.3	388 Add HIICallback types (FORM_OPEN, FORM_CLOSE) when a form is opened orClosed.	Feb. 12, 2009
2.3	376 Add ARM processorBinding to UEFI	Jan. 12, 2009
2.3	326 Add Firmware Management Protocol	Feb. 12, 2009
2.2A	429 EFI_HASH_SERVICE_BINDING_PROTOCOL GUID define misses _GUID	Feb. 12, 2009
2.2A	404 RemoveConstraint form EFI_TIME.YearComment	Feb. 12, 2009
2.2A	400 FreePool() description error	Feb. 12, 2009
2.2A	393 UEFI 2.1/2.2Boot ManagerBehaviorClarification	Feb. 12, 2009
2.2A	392 MBR errata in UEFI 2.2	Feb. 12, 2009
2.2A	391 Polarity of INCONSISTENT_IF and NO_SUBMIT_IF IFR opcodes wrong	Feb. 12, 2009
2.2A	390 UEFI 2.2 Miscellaneous HII-related errata	Feb. 12, 2009
2.2A	389 UEFI 2.2 HII-Related Formatting Issues	Feb. 12, 2009
2.2A	387 UEFI 2.1/UEFI 2.2A (ch. 12)	Feb. 12, 2009
2.2A	384 Fix HII package description omission.	Feb. 12, 2009
2.2A	379 UEFI 2.1/UEFI 2.2 HII-Related Errata	Feb. 12, 2009
2.2A	378 UEFI 2.1 & UEFI 2.2 HIICallbackClarifications	Feb. 12, 2009
2.2A	377 MissingBLTBuffer figure.	Feb. 12, 2009
2.2A	375 Extra periods errata in UEFI 2.2	Feb. 12, 2009
2.2A	374 UEFI 2.1 & UEFI 2.2A (10.7-10.10)	Feb. 12, 2009
2.2A	373 UEFI 2.2,Chs. 9.5 & 9.6.2 & 9.6.3 (Device Path) Errata	Feb. 12, 2009
2.2A	372 UEFI 2.2 remove “Draft for Review”	Feb. 12, 2009
2.2A	371 UEFI 2.1 & UEFI 2.2 Typos (ch. 10)	Feb. 12, 2009
2.2A	370 EFI_SYSTEM_TABLE Errata (UEFI 2.1/UEFI 2.2)	Feb. 12, 2009
2.2A	368 EFI_FONT_DISPLAY_INFO.FontInfo description incorrect	Feb. 12, 2009
2.2A	366 UEFI 2.x: Erroneous references to EFI_BOOT_SERVICES_TABLE, EFI_RUNTIME_SERVICES_TABLE	Feb. 12, 2009
2.2A	364 UEFI 2.2 Typos & Formatting Issues (ch. 9)	Feb. 12, 2009
2.2A	362 UEFI 2.2 Typos (Next)	Feb. 12, 2009
2.2A	361 UEFI 2.2 Typos & Formatting Issues	Feb. 12, 2009
2.2A	359 TPL Table	Feb. 12, 2009
2.2A	358 Missing signature for UEFI 2.2.	Feb. 12, 2009
2.2	398 Update to M348 to fix small typo	Jan. 11, 2009
2.2	397 PCICopyMem() misspelling	Jan. 11, 2009
2.2	394 Omission in EFI_USB2_HC_PROTOCOL	Jan. 11, 2009
2.2	357Clarify EFI_IFR_DISABLE_IFBehavior with regard to dynamic values	Jan. 11, 2009
2.2	351 Fix an unaligned field in a device path	Jan. 11, 2009
2.2	350 EFI_HII_STRING_PROTOCOL Typos	Jan. 11, 2009
2.2	348 EFI_IFR_RESET_BUTTON is incorrectly listed as a question	Jan. 11, 2009
2.2	347 Replace first paragraph of the “Description” section for the ExitBootServices()	Sept. 25, 2008
2.2	346 Nest, Sections 10.11 & 10.12 Under 10.10	Sept. 25, 2008
2.2	344Correct missing statusCodes returned section for Form() in EFI_USER_CREDENTIAL_PROTOCOL.	Sept. 25, 2008
2.2	343Correct missing parameter for User() function in EFI_USER_CREDENTIAL_PROTOCOL	Sept. 25, 2008
2.2	340 UEFI 2.2 Editorial / Formatting Issues	Sept. 25, 2008
2.2	339 Update missing TPL restrictions	Sept. 25, 2008
2.2	337 Replace the EFI_CRYPT_HANDLE reference (in the IPSsec API)with a self-contained, independent definition.	Sept. 25, 2008
2.2	335 User Authentication errata	Sept. 25, 2008
2.2	334 Standardized “Unicode” References	Jan. 11, 2009
2.2	333Correct the incorrect ‘;’ at the end of EFI_GUID #defines	Sept. 25, 2008
2.2	332Correct SendForm description Type, PackageGuid and FormsetGuid parameters	Sept. 25, 2008
2.2	331 Definition for EFI_BROWSER_ACTION and the related #defines were not present–Insert.	Sept. 25, 2008
2.2	330 EFI_IFR_REF:ChangeCross reference to a question	Sept. 25, 2008
2.2	327Clarify the support in DHCP4 protocol for “Inform” (DHCPINFORM) messages.	Sept. 25, 2008
2.2	325 MinorCorrection 28.3.8.3.20	July 25, 2008
2.2	324 ATA Pass-Thru ECR Update	July 25, 2008
2.2	323 VLAN modificationBecause of IPV6	July 25, 2008
2.2	322Chapter 2 updates for IP6 net stack	July 25, 2008
2.2	321Enable PCIe 2.0 andBeyond support in the UEFI error records	July 25, 2008
2.2	320Clarifcation for WIN_CERTIFICATE types & relationship with signature database types	July 25, 2008
2.2	319 UEFI IPSec protocol	July 25, 2008
2.2	315 EFI TCP6 Protocol	July 25, 2008
2.2	314 EFI MTFTP6 Protocol	July 25, 2008
2.2	313 EFI IPv6Configuration Protocol	July 25, 2008
2.2	312 EFI IPv6 Protocol	July 25, 2008
2.2	311EFI DHCPv6 Protocol	July 25, 2008
2.2	310 EFI UDPv6 Protocol	July 25, 2008
2.2	309 IPv6 Address display formatClarification	July 25, 2008
2.2	306 Some errata to the animation support	July 25, 2008
2.2	304 Errata to UpdateCapsule()	July 25, 2008
2.2	303 Add ability to have aCapsule that initiates a reset & doesn’t return to theCaller	July 25, 2008
2.2	301 Errata to the Authentication Protocol	July 25, 2008
2.2	300 MTFTP errata	July 25, 2008
2.2	299 PIWG Firmware File/Firmware Volume Typo Errata	July 25, 2008
2.2	294 LocateDevicePath with multi-instance device path	July 25, 2008
2.2	291 HII Errata / Update	July 25, 2008
2.2	288 Additional wording fixes for GPT Entry AttributeBit 1	July 25, 2008
2.2	282 Updated Requirements Section For ATA Pass Through (M242)	July 25, 2008
2.2	279 Firmware/OS Trusted Key Exchange and Image Validation	July 25, 2008
2.2	242 UEFI ATA Pass-Through Protocol	July 25, 2008
2.2	237 UEFI User Identification Proposal (from USST)	July 25, 2008
2.2	215 new Start() RemainingDevicePath Syntax	July 25, 2008
2.2	212 UEFI HII Standards Mapping	July 25, 2008
2.2	211UEFI Setup Question / Form Access Update	July 25, 2008
2.2	210 UEFI HII Animation addition	July 25, 2008
2.2	202 EAP Management	July 25, 2008
2.2	201EAP	July 25, 2008
2.2	200 VLAN	July 25, 2008
2.2	199 FTP API	July 25, 2008
2.2	198 GUID Partition Entry AttributesClarification and Definition	July 25, 2008
2.2	169 EFI Driver Health Protocol	July 25, 2008
2.2	157 Floating-Point ABIChanges For X86, X64 & Itanium	July 25, 2008
2.1C	Re-format Revision History fromBulleted lists to one row per Mantis ticket/ EngineeringChange Request	June 5, 2008
2.1C	60 iSCSI Device Path Update	June 5, 2008
2.1C	59 Add returnCode to Diagnostics Protocol	June 5, 2008
2.1C	58 Language update for EfiReservedMemory type usage	June 5, 2008
2.1C	57Clarify text for Extended SCSI Pass Thru Protocol.GetNextTargetLun()	June 5, 2008
2.1C	56Clarification on ResetSystem	June 5, 2008
2.1C	55Clarification on UpdateCapsule	June 5, 2008
2.1C	54 ACPI Table Protocol GUID Update	June 5, 2008
2.1C	52 New GUID for Driver Diagnostics and DriverConfiguration Protocols with new GUID	June 5, 2008
2.1C	283 Minor update toClarify a typedef/returnCode in HII	June 5, 2008
2.1C	281 Runtime memory allocation	June 5, 2008
2.1C	280 Some minor errata to keyboard related topics	June 5, 2008
2.1C	278Change references to EFI_SIMPLE_INPUT_PROTOCOL into EFI_SIMPLE_TEXT_INPUT_PROTOCOL	June 5, 2008
2.1C	266 PKCS11.5 structure does notCorrectly specify the portion of theCited RFC that pertains to theCertificate struct/algorithm	June 5, 2008
2.1C	249 Latest update to UCST Errata list	June 5, 2008
2.1C	248Correction to text inChapter 8.2 of UEFI 2.1B	June 5, 2008
2.1C	246 New returnCode	June 5, 2008
2.1C	245 Remove extraneous text inChapter 29	June 5, 2008
2.1C	244 Replace references to EFI_FIRMWARE_VOLUME_INFO_ PPI with EFI_PEI_FIRMWARE_VOLUME_INFO_PPI	June 5, 2008
2.1C	221ImageBlock Structure name typos in 27.3.7.2	June 5, 2008
2.1C	220 Replace references to RFC 3066 to RFC 4646	June 5, 2008
2.1C	219 IA-32 and x64 stack need toBe 16-byte aligned	June 5, 2008
2.1C	218 SATA update to section 9.3.5.6	June 5, 2008
2.1C	217 EFI_PLATFORM_TO_DR IVER_CONFIGURATION_PROTOCOL.Query() Update	June 5, 2008
2.1C	216 UEFI 2.1 textCorrections	June 5, 2008
2.1C	214 Device_IO + typos	June 5, 2008
2.1C	213 UEFI HII Errata	June 5, 2008
2.1C	209 ESP number/locationClarifications	June 5, 2008
2.1C	208 Driver Protocol Names and GUIDs	June 5, 2008
2.1C	207 Updated Wording for the File Path	June 5, 2008
2.1C	206Clarify return values for extended scsi passthru protocol	June 5, 2008
2.1C	203 Platform Error Record - x64 register state errata	June 5, 2008
2.1C	193 Loaded Image device paths for EFI Drivers loaded from PCI Option ROMs	June 5, 2008
2.1C	189 Graphics Output ProtocolClarification	June 5, 2008
2.1B	51 Long physicalBlocks updates	December 11, 2007
2.1B	205Change LoadImage() parameter name from FilePath to DevicePath; endsConfusion with EFI_LOADED_IMAGE_PROTOCOL	December 11, 2007
2.1B	197 EFI Loaded Image Device Path Protocol	December 11, 2007
2.1B	190 Extensive errata form UCST including OPCodesChanges ro resolveConflicts.	December 11, 2007
2.1B	187Clarify input protocols.	December 11, 2007
2.1B	186Change PCIR struct to match PCI FW Spec 3.0	December 11, 2007
2.1B	185Change EFI term to UEFI forConsistency	December 11, 2007
2.1B	184 SNIA/DDF Wording Update	December 11, 2007
2.1B	182Clarify EFI_MTFTP4_TOKEN	December 11, 2007
2.1B	181Correct MNP GUIDCollision	December 11, 2007
2.1B	177 remove ending paragraph (editing text) in section 9.6	December 11, 2007
2.1B	175 Update to SendForm API	December 11, 2007
2.1B	174 Error record addition for dma remapping units	December 11, 2007
2.1B	173 MinorChanges to the description of two of the fields in theCommon Platform Error Record, in Appendix N	December 11, 2007
2.1B	172 Typo for ResetSystem()	December 11, 2007
2.1B	170 (Addition of) Driver Family Override Protocol	December 11, 2007
2.1B	168 Remove LOAD_OPTION_GRAPHICS	December 11, 2007
2.1B	165 Fix EFI_GRAPHICS_OUTPUT_PIXEL	December 11, 2007
2.1B	164 Update to USB2_HC_PROTOCOL Table	December 11, 2007
2.1B	162 UEFI PIWG Device Path Errata	December 11, 2007
2.1B	160Clean up references to PCIR	December 11, 2007
2.1B	158 Errata to the UEFI 2.1Configuration sections	December 11, 2007
2.1B	156 SendForm API Errata	December 11, 2007
2.1B	159 Adjust some of the #define names in the Simple Text Input Ex protocol	December 11, 2007
2.1A	UEFI 2.1 incorporating Errata through 4-27-07	April 27, 2007
2.1	Second release	January 23, 2007
2.0	First release of specification.	January 31, 2006