I tried TextSecure through bluestacks and captured the stream to find out that it is using TLSv1. I am a noob in computer security, but isn't TLSv1.2 more secure?
Good move. Infact I'll suggest that the devs have some courage and make it a new language entirely. Trying to keep python3 in an awkward backward compatibility is harming it. And remove the GIL limitation at all costs.