As of June 12, 2012, AdWords Editor versions 9.0 and prior will be sunset. After this date, changes made via these versions will not be implemented in your AdWords account. Please download the latest version (9.7.1.) at your earliest convenience, but no later than June 12, 2012.

You can upgrade to version 9.7.1 through the auto-update prompt or download the latest version from the AdWords Editor website. After you install the new version, you’ll need to download your account again. To preserve your comments and unposted changes, select the ‘Backup then Upgrade’ option in the automatic upgrade prompt, then import the backup file after downloading the account.

For a complete list of version-specific changes, please see our release notes. To see which version you're using, go to the Help menu > About AdWords Editor.

Posted by Allison Sommer, Inside AdWords Crew