This change is not backward compatible.

这个变更不是向后兼容的。

youdao

According to our previous discussion, this change would be backward compatible.

根据我们前面的讨论，这个变更将是向后兼容的。

youdao

If existing users are unaffected then the change is backward compatible.

如果现有用户不受影响，则变更就是向后兼容的。

youdao

Options for the new machines will include Apple's new wireless-networking technology, Airport Extreme, which supports speeds of 54 megabits per second and is also backward-compatible with standard Wi-Fi gear.

FORBES: Magazine Article

While both Opteron and Itanium ran newer 64-bit software, AMD's chip was also backward-compatible, enabling it to run software written for older 32-bit processors.

FORBES

And all of a sudden your relatively old refrigerator or air conditioner doesn't work because the new operating system isn't backward-compatible with the systems in these devices.

CNN: Home, sweet networked home