macOS Catalina Security Update 2021-006

[Toyo72]

Catalina Security Update 2021-006 10.15.7 just posted today via Software Update.

Read more here: https://support.apple.com/kb/HT201222

I'm trying install via Software Update, will post results.

 

[Toyo72]

Smooth update with 2 reboots. 11 minutes on my gen 4 i7 machine, with OC 0.7.1, and that included the Safari update. Quicker than the last security update, which took about 20 minutes.
Version is now 19H1419

 

[markjhatch]

No problem here too!

 

[alexbixio]

Smooth update with Open Core 0.5.9.

 

[shmit3]

Smooth update with 2 reboots. 11 minutes on my gen 4 i7 machine, with OC 0.7.1, and that included the Safari update. Quicker than the last security update, which took about 20 minutes.
Version is now 19H1419
View attachment 529564

Are you using Clover? If so what version? After reboot, my system is frozen, but I can reboot and select the MacOS boot drive and still access my system. I am currently on 5138. Never mind, I see you are on OC.