Where can I find the bootcamp support software for Macbook Pro Retina mid 2014 15.4 2.5ghz?

I installed a trial version of Windows 7 to update to windows 8.1 Pro (because I did not have the ISO for 8.1, only the update from WIN 7 .exe file). During the update, the bootcamp drivers got erased from the machine. I have bootcamped many times before but this time, I could not find the support software on Apple's Website. I could find the other one: 5.1.5640, etc. But those do not support the 2014 15.4 models. Where can I find the download links for this because I do not want to install Windows again... Thanks in advance 🙂

What I found:

How to install Windows using Boot Camp - Apple Support

System requirements to install Windows on your Mac using Boot Camp - Apple Support

And a couple other bootcamp support download links.

I will be trying the 5.1.5640 version because it supports the 2013 models and may be used for the 2014/15 as well.