[GRASS-user] when was the first release of Grass 64 bit?

[razmjooeis at faunalia.co.uk]

I am reading through
http://en.wikipedia.org/wiki/Manifold_System
It claims:
"Release 7.00 was issued in May 2006 and followed up by Release 7x in the
next three months. 7x was released in two flavors: 32-bit and 64-bit.
Manifold 7x was the first ever 64-bit GIS application in the industry."

Does any know when GRASS 64-bit was first released?

Regards
Sab