10.10 on x220

[Whitieiii]

does anybody have Osx 10.10 Yosemite on the x220? would love to install it on the x220 when I get an x230 but what is all needed? how is it? I got 4 macs so getting hold of a mac to make an install usb is easy and would like all basic functions to work like boot, touchpad/trackpoint, keyboard, wifi and sound but other than that I would like iMessage and facetime to work also.... suggestions?

[Fusion]

I recently installed latest Sierra (10.12.5) on my X220.
Everything works perfectly. I even got the 3G modem to work.
The only investment (and good upgrade) was an AC wifi / BT4.0 mini PCIE card, because the original wifi and bluetooth are not supported.

Does not work:
- SD reader
- fingerprint scanner (I don't have one)