@Killerbot,
This contains backported fixes. I have tested it and menu related problems are gone. Though Save button in Toolbar problem remained same.
wx 2.6.4 contains one more backported fix which will enable wxLaunchDefaultBrowser() in Linux. One user had recently filed one bug report in Berlios which will get fixed with the newer version of wx.
But as Tim said, you can wait till it is released in Sourceforge.
Regards,
Biplab