obsoleting indication
Computing term for a notice that a feature, API, or standard is deprecated and may be removed in future versions.
This API has an obsoleting indication, so please migrate to the new version.
廃止予定 is a more general term for 'scheduled for abolition', while 差し替え表示 specifically refers to a displayed notice of obsolescence in computing contexts.
Compound of 差し替え (replacement) and 表示 (display, indication). The exact origin is uncertain; it appears to be a technical term coined in computing contexts.