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Hello,
I am using latest Safari version, what is wrong?
Thanks for helping
 
Try from Terminal with
Code:
softwareupdate --fetch-full-installer --full-installer-version 11.6.1
It might be a temporary (usual) problem on Apple's end.
 
I have seen t
It might be a temporary (usual) problem on Apple's end

Most likely explanation. I have seen this error when it was some kind of a networking issue. I switched from ethernet-cable to a cellular hotspot and it went away. Once the download started I then switched back to ethernet and it worked. Strange.
 
Hello,
I am using latest Safari version, what is wrong?
Thanks for helping
If you can't get the installer from Apple, try this site:
I know this works, the pkg file installs the Big Sur installer in your applications folder.
Good luck

oops, 10 seconds late!
 
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