Side by side diff view

Created by: dadlerj

Requested by:

• https://app.hubspot.com/contacts/2762526/company/1686989427
• https://app.hubspot.com/contacts/2762526/company/2428850551

We don't currently support this view for diffs, only inline. Generally, with the browser extension, it's easy to use the code host native side by side diff view, but both of these customers use unsupported code hosts (e.g. the first one uses Gerrit).