For anyone who doesn't know:
Right when b20 came out, all of its bypasses worked, except for speed, and the fly wasn't infinite.
Now, as far as I know, the only movement bypass that works is hypixel disabler enabled modules, such as Hypixel teleport (Wait about 5 seconds after clicking your destination), and even those can ban every so often.
So why no bypasses? Hypixel hired new, dedicated anticheat developers, and they've been working extremely hard to patch bypasses (props to them, honestly). Zeroday isn't the only client with this problem. In fact, only extremely private clients are able to maintain their bypasses. I heard that one of Astolfo's fly bypasses was patched within hours of its release. These new anticheat devs are working 24/7 (practically). Now in Astolfo's case in particular, Zarzel has been working just as hard to update ASAP after a patch (I wanted to address this as I've already mentioned Astolfo).
Now as I said, Zeroday doesn't have much in the way of movement bypasses at the moment. I came here to say that Nef is working hard to change that. As some of you may know, Nef hasn't been known for pumping out new bypasses as old ones are patched. Instead, he spent his time making huge improvements to the client and even starting (and nearly finishing) Project ZeroBot, which is HUGE!
HOWEVER, Nef is going to push many more updates now that will mainly include bypasses, and he's not going to stop the general improvement of ZeroDay or ZeroBot, either. ZeroDay will become much more of a recommended client, specifically when it comes to Hypixel.
Hypixel bypasses are on their way, hold on tight and be patient!