All new HPDs must be published according to the current effective version of the HPD Open Standard.

The HPD Open Standard is updated periodically. HPD v1 was introduced in 2012. The current effective version is HPD v2.2, which became effective in May 2020. 

HPDC provides an online tool, HPD Builder, that is always kept up-to-date with these requirements.

Published HPDs indicate the version designation in the upper right of the cover page, and an expiry date on the bottom of the cover page. HPDs published prior to the release of HPD v2.2 remain valid until the expiry date shown on the HPD. 

Manufacturers may choose to update previously published HPDs. When that happens, the new HPD will be published under the current HPD version.