It's difficult to see exactly what's changed with each update to the Partner Program Agreement so I've stored different versions in git which makes it each to see the changes.
Each version of the agreement since 2020 is stored as a separate commit to shopify-partner-agreement.md. You can see the changes by looking through the commit history of the file.
I do some minor cleanup to the Markdown text so that the diffs between each version are cleaner. This repo is intended to give an idea of what changes are in the terms but is in no way legal advice. If you have any questions about the terms either reach out to Shopify or a lawyer.
You can see the changes from the December 30, 2024 update at https://github.com/d-beck/shopify-partner-agreement/commit/3193edeb7dab0da645c80d3d3210a0a7964938fa
The different versions are also stored in the history directory.