how to revert back to previous version before Safari update

Hey there BigDinLV,

We'd be happy to help you revert to the previous version of macOS.

Since Safari is part of macOS, you would have to revert to the previous macOS version. However, in order for you to not lose any files, you'd need to have made a backup prior to updating your Mac.

If you created a backup, use these steps to erase your Mac:

Erase your Mac and reset it to factory settings - Apple Support

Then, use these steps to reinstall macOS: How to reinstall macOS - Apple Support

Finally, restore from that backup: Back up your Mac with Time Machine - Apple Support

Regards.

BigDinLV,

The same explanation and steps you were provided would still apply.

In order to revert to a previous version of macOS, it's recommended that you follow the steps below:

1) If you created a backup, use these steps to erase your Mac: Erase your Mac and reset it to factory settings - Apple Support

2) Reinstall macOS and proceed until you arrive at your desired macOS version: How to reinstall macOS - Apple Support

Please let us know the outcome after giving the above steps a try.

Thanks for using the Apple Support Communities.

Cheers!

reverting safari does not work,

here is the pkg from apple servers: https://swcdn.apple.com/content/downloads/36/08/012-82248-A_SAHUHK0ROJ/z04kizckik61f8z4fzyer6gw9mh50pbm9l/Safari16.2BigSurAuto.pkg

for safari 16.2

however this does not resolve the issue, the whole OS is the problem you would need to make a bootable install of macOS big sur 11.7.2 from some download online & proceed in downgrading your whole system.