Google App Engine SDK 1.3.4がリリースされていました。

• ダウンロード – Google App Engine – Google Code

リリースノートより。

Version 1.3.4 – May 19, 2010

• New bulkloader configuration syntax and wizard for easier import/export with the datastore.
• Applications can now be configured to authenticate with OpenID by selecting the OpenID option when creating your application in the admin console.
  • http://code.google.com/p/googleappengine/issues/detail?id=248
  • http://code.google.com/p/googleappengine/issues/detail?id=56
• New API to allow App Engine apps to act as OAuth service providers.
  • http://code.google.com/p/googleappengine/issues/detail?id=919
• Auto task execution is now enabled in the dev_appserver. To turn this off use the flag –disable_task_running.
• Fixed an issue using db.put() with constructor initialized id based keys.
  • http://code.google.com/p/googleappengine/issues/detail?id=3209