what is the latest version of Safari and where canI get it to download?

Safari is not available as as separate download. Different versions are included as part of different versions of Mac OS X.

What Mac OS X and what Safari are you running?

What version of Safari is required, and by what Web sites?

The latest version of Safari is 9.0.

However, Safari cannot be downloaded from anywhere. It is updated with the OS updates.

However, your 2006 Mac Pro cannot be updated past OSx 10.7 Lion to get a newer version of Safari.

So your only options are to download a different browser like Firefox or Chrome.

Firefox

The latest version is required

That is baloney.

They don't even know what "the latest version" is, and "the latest version" just changed in the last few days.

If you dig, this can be found:

Web Browsers

• Chrome (latest version)
• Firefox (latest version)
• Internet Explorer (version 8 or newer) and Microsoft Edge
• Safari (version 5 or newer)

Safari 5 was available in 10.7 Lion, and could be retrofit into 10.6.8.