commit 78c07eeee1184feba25a554d9902fe22d9da64fd Author: Nick Mathewson nickm@torproject.org Date: Fri Aug 26 13:56:31 2016 -0400

Changes file for prop264 / ticket 19958. --- changes/prop264 | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)

diff --git a/changes/prop264 b/changes/prop264 new file mode 100644 index 0000000..bab8a40 --- /dev/null +++ b/changes/prop264 @@ -0,0 +1,18 @@ + o Major features (subprotocol versions): + + - Tor now uses "subprotocol versions" to indicate + compatibility. Previously, versions of Tor looked at the declared Tor + version of a relay to tell whether they could use a given feature. + Now, they should be able to rely on its declared subprotocol versions. + This change allows compatible implementations of the Tor protocol(s) to + exist without declaring compatibility with pretending to be particular + releases of Tor itself. Closes ticket 19958; implements part of + proposal 264. + + - Tor directory authorities now vote on a set of recommended subprotocol + versions, and on a set of required subprotocol versions. Clients and + relays that lack support for a _required_ suprotocol version will not + start; those that lack support for a _recommended_ subprotocol version + will warn the user to upgrade. Closes ticket 19958; implements part of + proposal 264. +