Version 6.4.3 is now available from
https://gforge.inria.fr/projects/ecm/
Changes between GMP-ECM 6.4.2 and GMP-ECM 6.4.3:
* Fixed bug reported by user "lorgix" on mersenneforum
(
http://www.mersenneforum.org/showpos...&postcount=280)
* Use 64-bit value for random seed under Windows
Happy factoring!
The GMP-ECM team