2010-12-22 v2.4.0.9 version of Go study compared Edition update v2.4.0.8 1, through repeated testing, the program is optimized, but also fix some small Bug. 2010-12-21 v2.4.0.8 version of Go study relative to the update v2.4.0.7 version 1, an increase on the window to make software more formalize