The Hiking merit badge was updated in 2012 to break out #1 into two sub requirements: http://usscouts.org/mb/changes/mb061-12.asp
Then they were revised again in 2016 and effective in 2017: http://usscouts.org/mb/changes/mb061-17.asp
Looks like TroopTrack is listing the 2011 and before requirements.
For the 2017 MB requirements, it might make sense to create a new merit badge and push all the older Climbing merit badge to an older name. For the changes in 2012, at least a text update should be done to the current MB in TroopTrack. Otherwise, we’ll need a new MB to distinguish the difference between pre-2012 and post 2012.