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diff --git a/ReleaseNotes b/ReleaseNotes
index 93e38faf3f..0d710d9c42 100644
--- a/ReleaseNotes
+++ b/ReleaseNotes
@@ -3,6 +3,27 @@ This document summarizes new features and bugfixes in each stable release
 of Tor. If you want to see more detailed descriptions of the changes in
 each development snapshot, see the ChangeLog file.
 
+Changes in version 0.2.2.38 - 2012-08-12
+  Tor 0.2.2.38 fixes a remotely triggerable crash bug, and fixes a timing
+  attack that could in theory leak path information.
+
+  o Security fixes:
+    - Avoid an uninitialized memory read when reading a vote or consensus
+      document that has an unrecognized flavor name. This read could
+      lead to a remote crash bug. Fixes bug 6530; bugfix on 0.2.2.6-alpha.
+    - Try to leak less information about what relays a client is
+      choosing to a side-channel attacker. Previously, a Tor client would
+      stop iterating through the list of available relays as soon as it
+      had chosen one, thus finishing a little earlier when it picked
+      a router earlier in the list. If an attacker can recover this
+      timing information (nontrivial but not proven to be impossible),
+      they could learn some coarse-grained information about which relays
+      a client was picking (middle nodes in particular are likelier to
+      be affected than exits). The timing attack might be mitigated by
+      other factors (see bug 6537 for some discussion), but it's best
+      not to take chances. Fixes bug 6537; bugfix on 0.0.8rc1.
+
+
 Changes in version 0.2.2.37 - 2012-06-06
   Tor 0.2.2.37 introduces a workaround for a critical renegotiation
   bug in OpenSSL 1.0.1 (where 20% of the Tor network can't talk to itself