I'm afraid with all due respect to the author, I have to concur. "Right now, it isn’t clear that the advantages are significant" - so why invest the time in do

I'm afraid with all due respect to the author, I have to concur. "Right now, it isn’t clear that the advantages are significant" - so why invest the time in doing so? Why not use a tried and tested version until such times as you either need features from the newer version or some third party dependencies you absolutely need require it?