You will never receive security patches or bug fixes. Visio 2013 mainstream support ended in April 2018, and extended support ended in April 2023. However, legitimate volume license customers still received security updates until that end date. Pirated portable versions have zero updates.
Ensure portable versions are sourced from reputable locations to avoid malware, as Microsoft does not officially produce portable applications. Office Integration: microsoft office visio 2013 portable
format, which is still widely supported in modern diagramming, ensuring your portable diagrams work with newer systems. Key Features of Visio 2013 You will never receive security patches or bug fixes