通过移除系统目录（catalog）和文件目录（directory）中的所有链接，DB2 系统目录进行了重构，以便减少锁争用。
The DB2 catalog has been restructured to reduce lock contention by removing all links in the catalog and directory.
这个问题称为锁护送(lock convoying)(更多信息见参考资料中的链接)。
This problem is known as lock convoying (see Resources for links to more information).
新的锁屏功能，同时也可链接到相机和各种通知。
New lock screen features - the ability to access camera and notifications.
应用推荐