# EPUBCheck OPF-086: Property … is deprecated. Consider…

Source: https://epublab.com/epubcheck/opf-086/ (updated 2026-11-03)

EPUBCheck OPF-086 is a warning message: “Property "…" is deprecated. Consider using … instead.” A metadata property is deprecated; EPUBCheck names the property and the replacement to use.

- Official message (EPUBCheck 5.4.0): Property "%1$s" is deprecated. Consider using %2$s instead.
- Default severity: Warning

## Typical causes

- Package documents written for older EPUB 3 versions.

## How to fix it

- Replace the property with the one EPUBCheck suggests, or remove it if it is no longer needed.

Message text and severity: EPUBCheck (W3C, BSD-3-Clause). Explanation: EPUBLab.