App Engine SDK 1.2.8 Released

Enhanced Admin Console - Users will notice new tools for managing tasks and queues created with the Task Queue API, and more visibility into index processing.

Improved Java Compatibility - This release adds support for new filter operators and inheritance to JPA and JDO as well as support for JAXB, the single most requested feature for the Java SDK.

This was also the first release "previewed" with developers before formally rolling out changes.

Source: Google App Engine Blog: App Engine SDK 1.2.8 Released Including New Admin Console features