NOTE: NO BACKWARD COMPATIBILITY IS GUARANTEED FOR 0.x RELEASES !!
+release 0.17 (??):
+
+ - INTERFACE CHANGE: the callback functions now take an extra argument: the
+ record/element identifier (that is also used as first argument in the
+ *_subscribe_* functions). The extra argument is the first argument.
+
release 0.16 (16 August 2002):
- Another bugfixing release.