As far as I know: no. Whatsapp just implemented the (open source) signal protocol formerly known as Axolotl with the help of Open Whisper Systems. The rest of t

As far as I know: no. Whatsapp just implemented the (open source) signal protocol formerly known as Axolotl with the help of Open Whisper Systems. The rest of the IM "ecosystem" (like push notifications, contact recognition, server infrastructure etc.) is left untouched.