No. Any "patch" or "crack" found on third-party websites or torrent trackers is never safe. These files are the number one method for distributing malware, including trojans, keyloggers, and ransomware. The only safe way to obtain and update ProPresenter is by downloading the software directly from the official Renewed Vision website.
Understanding ProPresenter 6.0.3.8 Patches: Risks, Alternatives, and Stability ProPresenter 6.0.3.8 Patch
Included various crash fixes and general stability updates to prevent software failure during live use. Context and Support Status End of Life: January 31, 2023 The only safe way to obtain and update
Despite its legacy status, users still run older versions because the toolset remains remarkably effective for localized live operations. ProPresenter 6 - Live Presentation Software for Windows ProPresenter 6 - Live Presentation Software for Windows
After updating, test your entire environment. Loop videos for at least an hour, trigger multiple stage display layouts, and test your text-to-screen transitions to verify total stability.