i3blocks click events weren't functioning with the latest i3bar. Updating fixes the issue. See attached patch. Sorry for the dumb quesiton, but I hope I am correctly understanding the role of "revision" here. I simply incremented it from 1 to 2. My understanding is it's just a number added to the end of the version string to give it a unique value when updating to a commit that doesn't correspond to an exact release. If that's not correct then please let me know so I can fix it.