Oxidized is a network device configuration backup tool. It's a RANCID replacement!

Light and extensible, Oxidized supports more than 120 operating system types.

Feature highlights:

Automatically adds/removes threads to meet configured retrieval interval
Restful API to a move node immediately to head-of-queue (GET/POST /node/next/[NODE])
Syslog udp+file example to catch config change events (IOS/JunOS) and trigger a config fetch
    Will signal which IOS/JunOS user made the change, can then be used by output modules (via POST)
    The git output module uses this info - 'git blame' will show who changed each line, and when
Restful API to reload list of nodes (GET /reload)
Restful API to fetch configurations (/node/fetch/[NODE] or /node/fetch/group/[NODE])
Restful API to show list of nodes (GET /nodes)
Restful API to show list of version for a node (/node/version[NODE]) and diffs

While I was searching for a VCS capable RANCID, somewhere under a stone I found Oxidized, a 'silly attempt at rancid'. Looking at it, it seems more sophisticated, so I thought this might be the right attempt. Unfortunately there is no Debian package available, but I found an ITP created by Jonas.