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1.14 Version 2.7 Release Notes

Version 2.7 reorganises the entire data-representation of the Prolog data itself. The aim is to remove most of the assumption on the machine's memory layout to improve portability in general and enable embedding on systems where the memory layout may depend on invocation or on how the executable is linked. The latter is notably a problem on the Win32 platforms. Porting to 64-bit architectures should be feasible now.

Furthermore, 2.7 lifts the limits on arity of predicates and number of variables in a clause considerably and allow for further expansion at minimal cost.