How do I update STM32CubeProgrammer to the latest version?

To update, follow these steps: check the connection and update proxy settings if needed, check for updates via the Help menu's 'Software update' submenu, download the new version, then install it (the tool restarts once updated). If a new version is available, an update button/hyperlink appears in the main menu. Administrator rights are required to download the new package. (Page 18-21)