Update: developer token will be required in report downloads starting February 7th, 2012.

Based on recent AdWords API forum posts, many of you are unaware that on January 17th we began requiring a developer token in all post v13 report downloads. As a result, we are temporarily rolling back this change to give you additional time to update your applications and upgrade to the latest version of the client libraries. If you have already made this change, no action is required on your part. We will enforce this requirement starting February 7th, 2012.

Minimum client library versions with support for providing the developerToken header in reports are as follows:

As always, we encourage you to subscribe to the AdWords API blog posts and Twitter account and to follow us on the forum to ensure that you are aware of all critical updates and requirements.

If you have any questions, please post on the forum or attend one of the AdWords API Office Hours Hangouts.