forward-port the 0.1.1.21 changelog.

svn:r6600

ChangeLog

@@ -22,6 +22,48 @@ Changes in version 0.1.2.1-alpha - 2006-06-xx (in progress)
     - Add TestVia config option to the man page.
 
 
+Changes in version 0.1.1.21 - 2006-06-10
+  o Crash and assert fixes from 0.1.1.20:
+    - Fix a rare crash on Tor servers that have enabled hibernation.
+    - Fix a seg fault on startup for Tor networks that use only one
+      directory authority.
+    - Fix an assert from a race condition that occurs on Tor servers
+      while exiting, where various threads are trying to log that they're
+      exiting, and delete the logs, at the same time.
+    - Make our unit tests pass again on certain obscure platforms.
+
+  o Other fixes:
+    - Add support for building SUSE RPM packages.
+    - Speed up initial bootstrapping for clients: if we are making our
+      first ever connection to any entry guard, then don't mark it down
+      right after that.
+    - When only one Tor server in the network is labelled as a guard,
+      and we've already picked him, we would cycle endlessly picking him
+      again, being unhappy about it, etc. Now we specifically exclude
+      current guards when picking a new guard.
+    - Servers send create cells more reliably after the TLS connection
+      is established: we were sometimes forgetting to send half of them
+      when we had more than one pending.
+    - If we get a create cell that asks us to extend somewhere, but the
+      Tor server there doesn't match the expected digest, we now send
+      a destroy cell back, rather than silently doing nothing.
+    - Make options->RedirectExit work again.
+    - Make cookie authentication for the controller work again.
+    - Stop being picky about unusual characters in the arguments to
+      mapaddress. It's none of our business.
+    - Add a new config option "TestVia" that lets you specify preferred
+      middle hops to use for test circuits. Perhaps this will let me
+      debug the reachability problems better.
+
+  o Log / documentation fixes:
+    - If we're a server and some peer has a broken TLS certificate, don't
+      log about it unless ProtocolWarnings is set, i.e., we want to hear
+      about protocol violations by others.
+    - Fix spelling of VirtualAddrNetwork in man page.
+    - Add a better explanation at the top of the autogenerated torrc file
+      about what happened to our old torrc.
+
+
 Changes in version 0.1.1.20 - 2006-05-23
   o Crash and assert fixes from 0.1.0.17:
     - Fix assert bug in close_logs() on exit: when we close and delete