Hi, I'd like you to take a look at this patch for potential DocImpact. https://review.openstack.org/39041 Log: commit b30e3559cb3b6ebe3f60ca6d845b7906524a3c7a Author: He Jie Xu <xuhj at linux.vnet.ibm.com> Date: Mon Jul 29 16:11:24 2013 +0800 Fix instance_usage_audit_log v3 follow REST principles Use query parameter 'before' instead of show Partially implements bp v3-api-extension-versioning DocImpact Change-Id: If1168c01e6342675370acdf278e1c0317aff93d8 Automatically generated bug (please review): https://bugs.launchpad.net/bugs/1206040