We have added a Gift Upgrades feature that allows you to gift an account upgrade to another member, just in time for the holiday season. You can see the gift option when going to the Account Upgrades screen, or on any user profile screen.
This is now packaged as a regular mod, so no need to overwrite the base file.
Updated InGame.lua for the Fall patch and removed the yield icon key. Firaxis hooked up their own key, which you can assign in the keybindings menu. The default is (surprise!) Y. I don't think this made it into the patch notes.
For whatever reason, they also gave it a generic sound effect. Click! If you don't like the...