2 - On SIGHUP, do not clear out all TrackHostExits mappings, client DNS
3 cache entries, and virtual address mappings: that's what NEWNYM is
4 for. Bugfix on Tor 0.1.0.1-rc; fixes bug 1345.
5 - When TrackHostExits is changed from a controller, remove any
6 mappings for hosts that should no longer have their exits tracked.
7 Bugfix on Tor 0.1.0.1-rc.
8 - When VirtualAddrNetwork option is changed from a controller,
9 remove any mappings for hosts that were automapped to
10 that network. Bugfix on 0.1.1.19-rc.
11 - When one of the AutomapHosts* options is changed from a
12 controller, remove any mappings for hosts that should no longer be
13 automapped. Bugfix on 0.2.0.1-alpha.