If you are running a portable version from late 2024, you are likely missing important updates released in early 2025. Hence, the need for a manual “portable upd” procedure.
As of April 2026, DxO PhotoLab 9.7 is the current flagship version of this RAW photo editor. Regarding a "portable" version, DxO does not offer an official portable edition dxo photolab 9 portable upd
But a specific search term has been gaining traction in forums, Reddit threads, and file-sharing networks: If you are running a portable version from