-set.cql = http://www.loc.gov/zing/cql/context-sets/cql/v1.1/
-set.srw = http://www.loc.gov/zing/cql/srw-indexes/v1.0/
- # The "srw" set is deprecated in favour of the "cql" set.
-set.rec = http://srw.o-r-g.org/indexSets/rec/1.0/
-set.dc = http://www.loc.gov/zing/cql/dc-indexes/v1.0/
-set.bath = http://www.loc.gov/zing/cql/context-sets/bath/v1.1/
+set.cql = info:srw/cql-context-set/1/cql-v1.1
+set.rec = info:srw/cql-context-set/2/rec-1.0
+set.dc = info:srw/cql-context-set/1/dc-v1.1
+set.bath = http://zing.z3950.org/cql/bath/2.0/