You can update BuhoCleaner to the latest version in several ways. One easy mean is to click the menu bar at the top of the screen, which displays the top-level menus in BuhoCleaner > then click Check for Updates.
Alternatively, you can go to BuhoCleaner Menu app > Click the Settings icon > Check for Updates.
It's also suggested to enable the BuhoCleaner automatically check for updates feature. To do so: Open BuhoCleaner Preferences > General > Check the Automatically keep BuhoCleaner up to date.