Tagging release 3.2a1.
diff --git a/.hgtags b/.hgtags
index f17524f..abd4dbb 100644
--- a/.hgtags
+++ b/.hgtags
@@ -75,3 +75,4 @@
 4353fd0843cb31b356adc50f93d220e2e7255ef2 v3.1rc1
 0b87e438e1b53e3f812cad963a7fdb65d198ba2f v3.1rc2
 a69a031ac1402dede8b1ef80096436bca6d371f3 v3.1
+b37b7834757492d009b99cf0ca4d42d2153d7fac v3.2a1