The "Check for Updates" option within Resolve will not work. You must manually visit the official Blackmagic Design website, navigate to the Support Center, and download the latest installer.
The 18.6.x series serves as a bridge while Blackmagic continues development on Resolve 19—but given their track record of frequent updates, we can expect many more improvements before the next major version. Blackmagic Design DaVinci Resolve Studio 18.6.4...
: Supports project outputs up to 32K at 120 frames per second, whereas the free version caps output at UHD 4K at 60 fps. The "Check for Updates" option within Resolve will not work
