Release Notes: The GAP kernel now uses GMP or faster large integer arithmetic. Improved performance for records with large number of components. Speedup of the hash tables implementation at the GAP library level. Memory usage is now much more efficient, in particular for large objects. Speedups in the computation of low index subgroups, Tietze transformations, calculating high powers of matrices over finite fields, and Factorial. Numerous enhancements and bugfixes.