For an up to 50% discount “watch” the Elixir Book Sales / Discounts / Coupons Thread.
even though I’m sure I don’t need to get the 2nd edition.
Though authors may need encouragement to keep their content updated.
Given that I haven’t read it end-to-end, in a linear fashion, I keep coming back to (re-)read a chapter here and there (mostly the later ones) and I prefer to have updated content for that and in this case it is definitely worth it (and I really like the searchability of electronic media in any case).