This bypass was patched by Discord - It's source code has been attached as DMDGO_v1.8.11_Source.zip - Please us v1.8.10 if you're looking for the latest version to use.
Some client information (UserAgent and some additional information) encoded in base64 is sent to Discord in a header key x-super-properties. This bypass exploited the fact that if a DM was met with a captcha and you made a slight meaningful or non meaningful change in the x-super-properties, it would not ask the captcha again for that particular opened channel.
Captchas on DMs is bypassed again . It will function again till Discord patches it. Following a 86% vote for keeping this bypass closed sourced to ensure it works for some time https://t.me/discordfansonly/31) , it was decided to keep this release closed source. The last implemented bypass in v1.8.8 was patched in less than 24 hours. Please note that this community is not the cleanest and usually something like this might be done in order to steal your information, I guarantee you there is nothing malicious about this but I would never run this on my computer if I were you, consider using a VM or VPS. I know it hurts the open-source vibes but understand that this was decided so that you can use the program for longer. The source will be disclosed if and when it's patched.
Here's a VT (4/69)
https://www.virustotal.com/gui/file/28aafb69b966039352785a783e435b70f4c21532bcb015de516782161aff42e9?nocache=1