Facebook announced a number of platform changes in blog posts on Friday.

Open Graph ‘Read’ action now available – Facebook enabled its built-in “read” action in the Open Graph Tool. Developers can use this function for news or blog apps, but they will still need to submit the action for review before going live. “Read” joins “watch” as one of the built-in Open Graph actions available from the DevApp.

Pay dialog updates – Facebook introduced a new pay dialog property to allow developers to specify the dialog’s purpose. Developers can use the “action” property to indicate whether the dialog is being invoked for users to buy an item, buy Credits or earn Credits. This is not a breaking change and the previous pay dialog property continues to be supported.

Open Graph best practices – Facebook published its first product guide to help developers and product managers better understand how to integrate with the platform. The guide explains how to drive discovery and distribution through Open Graph.

Auth dialog migration postponed – As Facebook optimizes the performance of its new permissions dialog, it will delay the migration to March 1. Previously, the company said all apps would switch to the new auth dialog on Wednesday.

For more details on these items and other breaking changes, see Facebook’s Developer Blog.