хз но в вики есть упонминание о нескольких релизах, в частности последний
GTA02v6
Mass production candicate version 3/Mass production version
A6 will be fine tune version of A5, only minor schematic change for better product quality and version control. Capacitor and resistor change A6 also on mass production A5
First 100 pcs might start from end of 2008 March
Add capacitor space for Vbat, reduce the SMT effort