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In March, Google released AdWords API v12 and is finally discontinuing version 11. This will occur on August 26, 2008.
Migration from API v11 to v12 should be relatively straightforward. Jeffrey Posnick of the AdWords API team recommends that you read the documentation for any questions. Of course, Google Groups is available should you have any additional follow-up inquiries.
Forum discussion continues at Google Groups.
