Documentation issues in "Upgrading from version 2"

[bersbersbers]

1. Where you say that the \SI... commands are not recommended any more, saying that the new commands are now (edited) \qty... would save some time when upgrading.

2. It wasn't clear to me, but \usepackage{siunitx}[=v2] can also be used with v2. This means this can be used not only "for documents that cannot be successfully processed using version 3", but also to remain compatible with outdated server-based TeX installations. Maybe worth a note.

3. Typo

The method used in entirely different from version 2.

[josephwright]

I'm not quite sure what you want for point 1 - could you expand a bit?

[bersbersbers]

Write "Use the new \qty... commands instead." ("not" should read "now" in the original post.)

[josephwright]

See the commits I've added: do these cover it?

[bersbersbers]

Yes :)