The latest Graph API version is:
These changelogs document versioned and non-versioned changes to the Graph API and Marketing API.
Versioned changes are changes introduced with the release of a new API version. Versioned changes typically apply to the newest version immediately and often will apply to other versions at a future date. The changelog accompanying each release indicates which changes apply to the current release and which changes apply to other versions.
Refer to our Upgrade Guide to learn how to upgrade to a new API version.
Non-versioned changes are changes introduced outside of our normal, versioned release schedule and typically do not apply to a specific version. Instead, non-versioned changes usually apply to all API versions immediately. Because of this, non-versioned changes are introduced infrequently.