Binary compatibility report for the ntdll.dll library between 6.3.9600.17415-Windows 8.1 and 10.0.10586.306-Windows 10 1511 10586.494 versions on x86_64

Test Info

Library Name	ntdll.dll
Version #1	6.3.9600.17415-Windows 8.1
Version #2	10.0.10586.306-Windows 10 1511 10586.494
Arch	x86_64

Test Results

Total Header Files	6
Total Shared Libraries	1
Total Symbols / Types	400 / 228
Compatibility	99.9%

Problem Summary

	Severity	Count
Added Symbols	-	5
Removed Symbols	High	0
Problems with Data Types	High	0
	Medium	0
	Low	0
Problems with Symbols	High	0
	Medium	1
	Low	0
Problems with Constants	Low	9

Added Symbols 5

winnt.h, ntdll.dll
RtlConvertDeviceFamilyInfoToString ( PDWORD pulDeviceFamilyBufferSize, PDWORD pulDeviceFormBufferSize, PWSTR DeviceFamily, PWSTR DeviceForm )
RtlGetDeviceFamilyInfoEnum ( ULONGLONG* pullUAPInfo, DWORD* pulDeviceFamily, DWORD* pulDeviceForm )
RtlOsDeploymentState ( DWORD Flags )
RtlSwitchedVVI ( PRTL_OSVERSIONINFOEXW VersionInfo, DWORD TypeMask, ULONGLONG ConditionMask )

winternl.h, ntdll.dll
RtlInitStringEx ( PSTRING DestinationString, PCSZ SourceString )

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Problems with Symbols, Medium Severity 1

	Change	Effect
1	Type of this global data has been changed from unsigned char[34] const (34 bytes) to unsigned char[35] const (35 bytes).	Applications will obtain a different value and execution may change.

mswsockdef.h
[+] sockaddr_size [data] 1

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Problems with Constants, Low Severity 9

	Change	Effect
1	The value of constant WINVER has been changed from 0x0602 to 0x0A00.	Applications will pass an old value of this constant as the parameter to the new-version library functions, that expect a new one. This may result in crash of incorrect behavior of applications.

	Change	Effect
1	The value of constant DIAGNOSTIC_REASON_INVALID_FLAGS has been changed from (~0x80000003) to (~0x80000007).	Applications will pass an old value of this constant as the parameter to the new-version library functions, that expect a new one. This may result in crash of incorrect behavior of applications.

	Change	Effect
1	The value of constant JOB_OBJECT_CPU_RATE_CONTROL_VALID_FLAGS has been changed from 0xf to 0x1f.	Applications will pass an old value of this constant as the parameter to the new-version library functions, that expect a new one. This may result in crash of incorrect behavior of applications.

	Change	Effect
1	The value of constant JOB_OBJECT_MSG_MAXIMUM has been changed from 12 to 13.	Applications will pass an old value of this constant as the parameter to the new-version library functions, that expect a new one. This may result in crash of incorrect behavior of applications.

	Change	Effect
1	The value of constant JOB_OBJECT_NOTIFICATION_LIMIT_VALID_FLAGS has been changed from 0x00070204 to (JOB_OBJECT_LIMIT_JOB_READ_BYTES \| JOB_OBJECT_LIMIT_JOB_WRITE_BYTES \| JOB_OBJECT_LIMIT_JOB_TIME \| JOB_OBJECT_LIMIT_JOB_MEMORY_LOW \| JOB_OBJECT_LIMIT_JOB_MEMORY_HIGH \| JOB_OBJECT_LIMIT_CPU_RATE_CONTROL \| JOB_OBJECT_LIMIT_IO_RATE_CONTROL \| JOB_OBJECT_LIMIT_NET_RATE_CONTROL).	Applications will pass an old value of this constant as the parameter to the new-version library functions, that expect a new one. This may result in crash of incorrect behavior of applications.

	Change	Effect
1	The value of constant POLICY_AUDIT_SUBCATEGORY_COUNT has been changed from (56) to (58).	Applications will pass an old value of this constant as the parameter to the new-version library functions, that expect a new one. This may result in crash of incorrect behavior of applications.

	Change	Effect
1	The value of constant PROCESSOR_PERF_BOOST_MODE_MAX has been changed from 4 to 6.	Applications will pass an old value of this constant as the parameter to the new-version library functions, that expect a new one. This may result in crash of incorrect behavior of applications.

	Change	Effect
1	The value of constant OBJ_VALID_ATTRIBUTES has been changed from 0x000007F2L to 0x00001FF2L.	Applications will pass an old value of this constant as the parameter to the new-version library functions, that expect a new one. This may result in crash of incorrect behavior of applications.

	Change	Effect
1	The value of constant AF_MAX has been changed from 34 to 35.	Applications will pass an old value of this constant as the parameter to the new-version library functions, that expect a new one. This may result in crash of incorrect behavior of applications.

sdkddkver.h
[+] WINVER

winnt.h
[+] DIAGNOSTIC_REASON_INVALID_FLAGS
[+] JOB_OBJECT_CPU_RATE_CONTROL_VALID_FLAGS
[+] JOB_OBJECT_MSG_MAXIMUM
[+] JOB_OBJECT_NOTIFICATION_LIMIT_VALID_FLAGS
[+] POLICY_AUDIT_SUBCATEGORY_COUNT
[+] PROCESSOR_PERF_BOOST_MODE_MAX

winternl.h
[+] OBJ_VALID_ATTRIBUTES

ws2def.h
[+] AF_MAX

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Header Files 6

ip2string.h
mstcpip.h
netiodef.h
reshub.h
winnt.h
winternl.h

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Shared Libraries 1

ntdll.dll

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