Possible compatibility problems with earlier versions marked with '*'.
+CCL trunction character may be defined (@truncation in file)
+
+* function zget_ExtendedServicesRequest sets waitAction to
+ waitIfPossible (was wait).
+
+Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
+to Matthew Carey.
+
CCL operator names may be set in field definition files (CCL_bibset).
See ccl/bib1 for an example.