Hi, I'd like you to take a look at this patch for potential DocImpact. https://review.openstack.org/17965 Log: commit 2a19cd1e481ea7b2a17bb8e1f7d7455f13bf0afb Author: Russell Bryant <rbryant at redhat.com> Date: Mon Jan 7 11:08:18 2013 -0500 Sync rpc and notifier from oslo-incubator. This patch syncs the latest changes to rpc and notifier from oslo-incubator. The most significant changes are for adding support for a message envelope for all messages, including notifications, sent via rpc. Related oslo-incubator reviews: https://review.openstack.org/#/c/17554/ https://review.openstack.org/#/c/18057/ Note that a new notifier module was added: rpc_notifier2, which when used, sends notifications out with a message envelope. DocImpact. Implements bp version-rpc-messages. Change-Id: I495c224d0c502086ce3db6c078d48829b8d913a6