Damage was already done to the community also worth mentioning IIRC Jumper did get reverted back to being able to jump whenever
Afraid I dont have an exact date, but I know I did some Triple Jumping in BL after the update that broke it
Jumper in BL used to be such a fun kit. I haven't played BL in months though due to the new mixed arcade system, so I have no idea of the current state of the kit. I liked the og jumper though...