App Engine 1.6.0 out of Preview release- Google Developers Blog

This post announces the release of App Engine 1.6.0, moving it out of preview. This update includes several new features and improvements for developers, such as the ability to use the App Engine SDK for Java to deploy applications, support for the new Python 2.7 runtime, and enhancements to the App Engine Admin Console. It also highlights the ongoing development and maturity of the App Engine platform as a robust environment for building and scaling web applications.