Having spent the last few years refining our release versioning systems and policies, usage model, and data center systems, we feel it is time to officially remove the beta label from the AdWords API.
We'd like to thank those of you who have supported the API over the last several years, and especially to those intrepid souls who first joined the beta in early 2005. Since our initial beta launch, the API has grown to support thousands of independent developers
. The AdWords API is an integral part of the AdWords platform, and one we will continue to refine and develop in the years to come.
-- Borana Toska, Product Marketing