[tor-commits] [tor/master] Changes file for prop264 / ticket 19958.

[nickm@xxxxxxxxxxxxxx]

commit 78c07eeee1184feba25a554d9902fe22d9da64fd
Author: Nick Mathewson <nickm@xxxxxxxxxxxxxx>
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.
+



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