上位互換性

じょういごかんせい

downward compatibility; backward compatibility; compatibility with input or components intended for lower tier or older systems, versions, etc.; upward compatibility

Meaning

n
downward compatibility; backward compatibility; compatibility with input or components intended for lower tier or older systems, versions, etc.
n
upward compatibility; forward compatibility; compatibility with input or components intended for higher tier or later systems, versions, etc.

Example sentences

旧システム用に書かれたソフトとの上位互換性を保つのは大切です。

It is important to maintain backward compatibility with software that was written to run on the former system.