I have noticed lately that as of the v1.64 update the rubber boots will cause a server to crash if the wearer of the boots takes any other damage than fall damage. That is all I have to say for now and I am sorry if this messes with the wiki page (I am still new to using wiki editing.)
(Moved from the page) P.S. Incidentally, I experimented using NBTedit, which allowed me to do things like set damage to boots initially to -10000, and health to 10000, set fall distance to 10000 without actually going up in the air, and generally play around. In the old minecraft where armor effectiveness was based on the damage to the armor, setting negative values to damage allowed armor to heal you when you get hurt. Damage could go as low as -32767, so the armor lasted a long time, but if you heal to over 32768 health, your health rolls over to -32767, so you die suddenly. This doesn't really belong but people can edit it out if they want, but I felt like mentioning it.