[GAE/J] Google App Engine Java SDK 1.7.4 がリリースされました

Google App Engine Java SDK 1.7.4 がリリースされました。
リリースノートは以下。

Traffic Splitting is now a GA feature. 
Task Queue Statistics is now a GA feature. 
Logs API now has the ability to fetch requests based on a list of request_ids. Currently, this only works in production and is not supported in dev_appserver. 
The SDK now includes an IDE-friendly zip with the source for the App Engine APIs. The zip resides in <SDK_ROOT>/src/user 
Additional support for Maven now exists through both Maven archetypes and a Maven plugin. Documentation for the new Maven support can be found at https://developers.google.com/appengine/docs/java/tools/maven 
DISTINCT for Datastore queries is now available as an experimental feature. 
The decommissioned Conversion API has been removed. 
Various JSP improvements 
JSPs are now compiled together as opposed to one by one. This improves the compilation process time. 
JSP compiled classes are packaged in JAR files. 
You can now avoid the upload of JSP source, which is typically not needed at runtime. This can be done via the new --delete_jsps option in the appcfg tool. By default, this option is not set. 
You can now package all the WEB-INF/classes/* classes into jar files. This can be done via the new --enable_jar_classes option in the appcfg tools. By default, this option is not set. 
Users can now set how many columns can be viewed in the Datastore Viewer via a drop-down menu which customizes the number of columns displayed. 
http://code.google.com/p/googleappengine/issues/detail?id=8158 
Fixed an issue with BackendService.getCurrentInstance() returning thread ID instead of integer instance ID in production. 
http://code.google.com/p/googleappengine/issues/detail?id=8338 
Fixed an issue with Datastore Backup failing when a schema has a very large number of properties. 
http://code.google.com/p/googleappengine/issues/detail?id=8363 
Fixed an issue with users being unable to change Authentication Type after app creation in the Admin Console. 
http://code.google.com/p/googleappengine/issues/detail?id=8394 

SdkForJavaReleaseNotes - googleappengine - Google App Engine Java SDK Release Notes - Google App Engine - Google Project Hosting

http://code.google.com/p/googleappengine/wiki/SdkForJavaReleaseNotes

今回のリリースでは、Traffic Splittingのサポート、Task Queueの統計機能の追加、Datastore Viewerでの表示カラム数を指定できる機能の追加などが行われています。
また、JSPに関するコンパイル時間短縮等の幾つかの修正や、廃止となったConversion APIが削除されているようです。