1) A new error check for LL testing has been implemented. This error check,
called a Jacobi error check, has a 50% chance of detecting hardware error(s)
since the last time a Jacobi error check was performed. This error check
takes roughly 30 seconds and is scheduled to run twice a day. The program
now saves two additional intermediate files that have passed the Jacobi
error check. This test requires use of the GMP (GNU multi-precision) library.
2) The GCD step in P-1 and ECM factoring is faster.
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