That 4.7.6 in the Turbulence branch name is temporary. I’ll be replacing that branch with one named ‘Turbulence’, which is up to date with the release branch (4.8.1). We’ll be bringing all of the branches up to 4.8.1 in the coming days. The branch names and Readme should never specify versions, you should be able to tell how up to date it is by looking at the log.