If you use Disqus on your blog (as I do) within the past couple days you may have received an email stating that, essentially, your commenting system is going to stop working. If you (as I did) proceeded to freak out…you can stop now. It’s not as big of a deal as it sounds.
Check the official Disqus blog for the full explanation.
Here’s the full text from the Disqus blog post:
If you use Disqus’ Facebook integration for login and sharing, there are some changes going on right now that we’d like to give you a heads up about. You may have received an email recently from Facebook with the subject line “Breaking change: API deprecations.” This sounds a little scary, but it isn’t — it’s actually related to your Disqus account.
When setting up your Disqus account with Facebook, you were given an API key which is a developer access key that lets the integration work properly. Facebook’s platform is undergoing some changes. We’re making changes at Disqus to remain compatible. That’s all that the email means.
For new users, Facebook integration will temporarily require an additional step which is in our updated Facebook Connect documentation. Current users won’t need to change anything. If you have any further questions, please check out this knowledge base article.
In other words, don’t sweat it; your Disqus commenting system should (in theory) just keep working when the official Facebook changes take place.