http://lifehacker.com/truecrypts-web-site-updates-with-ominous-warning-detai-1582879439
And they indicate that you should jump ship immediately.
And seems to officially stop support for Windows:
The development of TrueCrypt was ended in 5/2014 after Microsoft terminated support of Windows XP. Windows 8/7/Vista and later offer integrated support for encrypted disks and virtual disk images. Such integrated support is also available on other platforms (click herefor more information). You should migrate any data encrypted by TrueCrypt to encrypted disks or virtual disk images supported on your platform.