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+ o Major features (directory mirrors):
+ - Include an opt-in trial list of Default Fallback Directories in
+ add_default_fallback_dir_servers().
+ "Tor has included a feature to fetch the initial consensus from nodes
+ other than the authorities for a while now. We just haven't shipped a
+ list of alternate locations for clients to go to yet.
+ Reasons why we might want to ship tor with a list of additional places
+ where clients can find the consensus is that it makes authority
+ reachability and BW less important.
+ We want them to have been around and using their current key, address,
+ and port for a while now (120 days), and have been running, a guard,
+ and a v2 directory mirror for most of that time."
+ We exclude BadExits and tor versions that aren't recommended.
+ We include an IPv6 address for each FallbackDir (#8374).
+ (Tor might not use IPv6 fallbacks until #6027 is merged.)
+ The unit test ensures that we successfully load all included
+ default fallback directories.
+ Closes ticket #15775. Patch by "teor".
+ OnionOO script by "weasel", "teor", "gsathya", and "karsten".