NeoDAN is a free and open source jailbreak prompt, currently tested on ChatGPT 5.5 and mostly working.
It is meant as the successor to DAN, which is mostly patched.
It is an improved and beautified version of a private prompt of mine called libsyrt made to stop what I used to call "SYRTs" (stop you right there).
NeoDAN 1.0 (DAN 14.0, libsyrt 3.0, GPT-5.5)
NeoDAN 2.0 (DAN 15.0, libsyrt 4.0, GPT-5.5)
1.0: PATCHED
2.0: NOT WORKING
NEODAN IS MEANT FOR EDUCATION, TESTING, AND LEGITIMATE PURPOSES ONLY. OPENCANDELA IS NOT RESPONSIBLE FOR ANYTHING THAT YOU DO WITH IT OR HAPPENS DUE TO IT, NO MATTER HOW BIG OR IMPORTANT. IT CAN BE PATCHED AT ANY MOMENT. USE AT YOUR OWN RISK.