iOS 12 Jailbreak Status
If your iPhone 5s is jailbroken or if you want to jailbreak your phone, you should avoid the iOS 12.4.6 update for now.
Jailbreak developers have released jailbreaks for recent versions of iOS 12, but it's unclear if there's support for iOS 12.4.6. We should find out for sure in the near future.
If you're interested in jailbreaking your iPhone 5s, have a look at our guide.