Because the official Blizzard Battle.net launcher automatically forces upgrades to the live expansion, you cannot natively download patch 9.2.7 through standard retail channels anymore.
If you are playing the official version of World of Warcraft, Blizzard handles all client versions automatically through the Battle.net desktop application. Step-by-Step Installation
As we celebrate this milestone, we're already looking to the future. Our roadmap is packed with exciting new features, enhancements, and projects that will further improve our client and expand our offerings.