changes file for bug 29875.

changes/bug29875

+  o Major bugfixes (bridges):
+    - Do not count previously configured working bridges towards our total of
+      working bridges. Previously, when Tor's list of bridges changed, it
+      would think that the old bridges were still usable, and delay fetching
+      router descriptors for the new ones.  Fixes part of bug 29875; bugfix
+      on 0.3.0.1-alpha.
+    - Consider our directory information to have changed when our list of
+      bridges changes. Previously, Tor would not re-compute the status of its
+      directory information when bridges changed, and therefore would not
+      realize that it was no longer able to build circuits. Fixes part of bug
+      29875.