@wicket yes they are BANNING users of 3rd part clients.
@juiceme they are actually using libsignal from textsecure for text messaging. it's almost same as own textsecure clients, but working via whatsapp servers using xmpp protocol encrypted packets with Noise protocol. It's all already reversed and hacked by other peoples in php Chat-API project
@ZogG i developed a lot for WA1.5 protocol support, then they switched to WA1.6 protocol, and now switched to WA2.0 protocol. Fully working qt libs for libaxolotl and libwa are ready. But since december i have a full time job and cant support such big project. I will think about publishing sources some day, and you will see i did not spent your donations for drugs and whores, but for code