+When error is returned from present handler, non-surrogate diagnostic
+is returned in present response (and fetch handler is no longer called).
+
+* Minor adjustments to pquery parser (PQF). Token characters may be
+escaped by using backslash (C-style).
+
+PQF parser allows string attribute values to be specified. For @attr,
+non-numeric characters after the equal-sign are treated as strings
+(e.g. @attr 9=title).
+
+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.
+