Make sure to use the latest versions of the profiles or there probably patched
Default profiles is all the profiles that are built in with the client.
To use the profiles (If your using Jello) all you need to do is press right-shift when your in a server or a single player world and press the three dots in the bottom right corner of the ClickGUI, once your there you should see a plus symbol, once you have pressed the plus symbol you will see multiple options for profiles built in with the client, press one of them and you are ready to hack on any of the servers selected!
Profile created by u/d4r10_the_cheater
Redesky profile created by u/Totallygoodguy