"Security update 2020-004" can't be installed because it is no longer recommended for your computer. You can try updating again in the App Store after restarting.
My MacBook Pro is running on High Sierra (10.13.6). MacBook Pro (13-inch, 2017, Two Thunderbolt 3 ports).
When I try restarting my computer to install the update 2020-004, I have this error: "Security update 2020-004" can't be installed because it is no longer recommended for your computer.
MacBook Pro 13″, macOS 10.13