Changes of Sylpheed
+* 0.6.4
+
+ * The performance of summary display on large number of messages
+ has been improved.
+ * Columns of the summary view became reorderable.
+ * The default order of the summary view columns has been changed.
+ * Reedit has been enabled in the outbox.
+ * LDIF file import has been implemented.
+ * The crash bug of LDAP has been fixed.
+ * Some other bugs have been fixed.
+
* 0.6.3
* Message body text search has been implemented.