14.4.2 Bugs Fixed
-  Spurious SPIO_E_ERRORexceptions when interrupting
Prolog. Most often seen when usinglibrary(timeout)or when using
^C at the top-level prompt.
-  Inconsistent error messages if the license information was missing or incomplete.
-  library(fdbg): inconsistent trace messages for labeling steps.
-  library(clpfd): error handling for user-defined global constraint actions.
-  Source info of interpreted clauses.
-  Memory management issue with garbage collection + pending unblocked goals
-  CHR debugging and tracing did not work.
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