The link takes you to the updated policy and if you scroll up you’ll see the original policy but Pinterest doesn’t call out what’s different from one to the other. That’s not nice.
I compared the two docs and here’s what I found.
The first section of the privacy document is called “What information do we collect?”. Right now, all information is lumped together under two headings. In the new document, Pinterest gives partners and advertisers their own section.
3. Our partners and advertisers may share information with us