じょういごかんせい

上位互換性

表記・読み：じょういごかんせい

1. 1

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

   名詞
2. 2

   upward compatibility; forward compatibility; compatibility with input or components intended for higher tier or later systems, versions, etc.

   名詞incorrect usage