Oops. Fixed fucking ithreads issue.
Checking in changes prior to tagging of version 0.07.

Changelog diff is:

diff --git a/Changes b/Changes
index e8d8da1..c559197 100644
--- a/Changes
+++ b/Changes
@@ -2,6 +2,12 @@ Revision history for Perl extension B-Tap

 {{$NEXT}}

+0.07 2013-11-05T04:11:43Z
+
+    [BUG FIX]
+    - 0.06 does not works with ithreads.
+      (tokuhirom)
+
 0.06 2013-11-02T02:50:45Z

     - Care extended ops.