https://arstechnica.com/gadgets/2018/07/apple-to-stop-selling-2015-macbook-pro-with-old-style-keyboard-legacy-ports/

Apple doesn't waste time consolidating its product lineups—after announcing new MacBook Pro models today, the 2015 MacBook Pro has been removed from the Mac section of Apple's website.

Beloved by many, the 2015 MacBook Pro had a number of features that have since been changed or have disappeared entirely from new MacBook Pro models. Arguably the most polarizing among these tweaks is the butterfly keyboard—the 2015 MacBook Pro predates that mechanism, making its traditional keyboard a preferred alternative for many users.