Change log for v1.3 which will be up on next SDN update:
Version 1.4 will also be released the following weekend which will target the overall behavior of the script. The script will have more randomized walking patterns, all Grand Exchange prices will be randomized and pulled from online sources and the script will feature a human-like chatting behavior therefore being able to join chats, add friends and not only reply to messages, but actually start conversations with random players.
PS: Demon Slayer actually requires decent stats in order to survive the level 20 mages. You will receive a warning upon trying to start this quest if you don't have 25 combat or higher. Running Waterfall Quest before Demon Slayer will ensure all the levels required for completion.