Binary compatibility report for the mongoDB library between 1.6.2 and 1.6.3 versions on x86

Test Info

Library Name	mongoDB
Version #1	1.6.2
Version #2	1.6.3
CPU Architecture	x86
GCC Version	4.5

Test Results

Total Header Files	1
Total Shared Libraries	2
Total Symbols / Types	446 / 350
Verdict	Incompatible (5.04%)

Problem Summary

	Severity	Count
Added Symbols	-	9
Removed Symbols	High	0
Problems with Data Types	High	1
	Medium	0
	Low	3
Problems with Symbols	High	0
	Medium	1
	Low	1
Problems with Constants	Low	0
Other Changes	-	0

Added Symbols (9)

message.h, libmongoshellfiles.so
namespace mongo
MessagingPort::closeAllSockets ( unsigned int tagMask ) [static]

sp_counted_impl.hpp, libmongoshellfiles.so
namespace boost::detail
sp_counted_impl_p<boost::filesystem2::detail::dir_itr_imp<boost::filesystem2::path> >::dispose ( )
sp_counted_impl_p<boost::filesystem2::detail::dir_itr_imp<boost::filesystem2::path> >::get_deleter ( sp_typeinfo const& p1 )
sp_counted_impl_p<boost::filesystem2::detail::dir_itr_imp<boost::filesystem2::path> >::~sp_counted_impl_p [in-charge-deleting] ( )
sp_counted_impl_p<boost::filesystem2::detail::dir_itr_imp<boost::filesystem2::path> >::~sp_counted_impl_p [in-charge] ( )
sp_counted_impl_p<boost::filesystem2::filesystem_error::m_imp>::dispose ( )
sp_counted_impl_p<boost::filesystem2::filesystem_error::m_imp>::get_deleter ( sp_typeinfo const& p1 )
sp_counted_impl_p<boost::filesystem2::filesystem_error::m_imp>::~sp_counted_impl_p [in-charge-deleting] ( )
sp_counted_impl_p<boost::filesystem2::filesystem_error::m_imp>::~sp_counted_impl_p [in-charge] ( )

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Problems with Data Types, High Severity (1)

	Change	Effect
1	Size of this class has been increased from 152 bytes to 156 bytes.	1) An object of this class can be allocated by the applications and old size will be hardcoded at the compile time. Call of any exported constructor will break the memory of neighbouring objects on the stack or heap. 2) The memory layout and size of subclasses will be changed.

message.h
namespace mongo
[+] class MessagingPort (1)

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Problems with Symbols, Medium Severity (1)

	Change	Effect
1	Type of return value has been changed from MutexDebugger to MutexDebugger& of different format.	Applications will obtain a different return value and execution may change.

mutex.h, libmongoshellfiles.so
namespace mongo
[+] mutexDebugger [data] (1)

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Problems with Data Types, Low Severity (3)

	Change	Effect
1	Base class boost::noncopyable_::noncopyable has been added.	Possible incorrect access of applications to the memory occupied by the base classes.

Offset	Virtual Table (Old) - 9 entries	Virtual Table (New) - 9 entries
0	(int (*)(...))0	(int (*)(...))0
4	(int (*)(...))(& typeinfo)	(int (*)(...))(& typeinfo)
8	~AbstractMessagingPort	~AbstractMessagingPort
12	~AbstractMessagingPort	~AbstractMessagingPort
16	__cxa_pure_virtual	__cxa_pure_virtual
20	__cxa_pure_virtual	__cxa_pure_virtual
24	__cxa_pure_virtual	__cxa_pure_virtual
28	__cxa_pure_virtual	__cxa_pure_virtual
32	AbstractMessagingPort::getClientId	AbstractMessagingPort::getClientId

	Change	Effect
1	Base class boost::noncopyable_::noncopyable has been added.	Possible incorrect access of applications to the memory occupied by the base classes.

Offset	Virtual Table (Old) - 6 entries	Virtual Table (New) - 6 entries
0	(int (*)(...))0	(int (*)(...))0
4	(int (*)(...))(& typeinfo)	(int (*)(...))(& typeinfo)
8	~Listener	~Listener
12	~Listener	~Listener
16	Listener::accepted	Listener::accepted
20	Listener::accepted	Listener::accepted

	Change	Effect
1	Field tag has been added to this type.	Size of the inclusive type has been changed. NOTE: this field should be accessed only from the new library functions, otherwise it may result in crash or incorrect behavior of applications.

message.h
namespace mongo
[+] class AbstractMessagingPort (1)
[+] class Listener (1)
[+] class MessagingPort (1)

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Problems with Symbols, Low Severity (1)

	Change	Effect
1	The pointer level of return value has been increased from 0 to 1.	Applications will treat the return value as the lower-dimension array and will not read all elements. This may change the behavior of applications.

mutex.h, libmongoshellfiles.so
namespace mongo
[+] mutexDebugger [data] (1)

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Header Files (1)

dbclient.h

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Shared Libraries (2)

libmongoclient.so
libmongoshellfiles.so

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