13.18.2 Bugs Fixed
-  Terms containing a hash mark (‘#’) was not transmitted correctly to
the SICStus Prolog IDE (SPIDER). This affected the SPIDER debugger view,
among other things.
-  Several built-in predicates did not handle constrained “output”
variables correctly, e.g. atom_length/2,char_code/2,atom_concat/3,sub_atom/5
-  Fix variable binding display bug when inside disjunctions and do loops
-  Prevent state corruption upon out-of-memory exception in certain contexts
-  library(random):random(L,L,X)would succeed withX = Linstead of failing
-  queues:singleton_queue/2returned the wrong term
-  CLPFD:
- - Performance bug in special cases of case/[3,4]
- - table/[2,3]: bug withinf/supin binary relations
 
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