值得强调的是，除非需要向后兼容性，否则没有理由用老的队列和主题接口编写新的JMS应用程序。
It is worth stressing that, unless you require backwards compatibility, there is no reason to write new JMS applications using the old queue and topic interfaces.
例如，如果将XML用作数据交换标准，应用程序必须提供向前和向后兼容性，以支持较新或较旧的版本标准。
For example, in the case where XML is used as a standard for data exchange, the application must provide backward or forward compatibility to older or newer versions of the standard.
WindowsPhone7缺乏向后兼容性，这意味着，为以前版本的WindowsMobile编写的应用程序无法运行在芒果上。
Windows Phone 7 lacks backward compatibility, this means that applications written for previous versions of Windows Mobile cannot be run on Mango.
新的系统不具有向后的兼容性，这意味着HD2的用户无法运行将来为windows 7所写的应用程序。
The new software will not be backwards-compatible, meaning HD2 users shouldn't expect to be able to run it or applications written for it.
表3显示了32位和64位应用程序在不同的RHEL和SLES版本上的向后和向前兼容性。
Table 3 shows the backward and forward compatibility of 32-bit and 64-bit applications on the different releases of RHEL and sles.
注意：pe_api . jar文件用于编译那些使用了api(包括FormLibrary和FCI Library)的应用程序，而uwi_api . jar文件用于编译那些需要向后兼容性的应用程序。
File is used for compiling applications that use the API (including the Form Library and the FCI Library), and the uwi_api.jar file is used to compile applications that require backward compatibility.
注意：pe_api . jar文件用于编译那些使用了api(包括FormLibrary和FCI Library)的应用程序，而uwi_api . jar文件用于编译那些需要向后兼容性的应用程序。
File is used for compiling applications that use the API (including the Form Library and the FCI Library), and the uwi_api.jar file is used to compile applications that require backward compatibility.
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