about old version

hi guys,

I want to migrate from server 2008 with ELA v 8.6 / 8063 to win server 2012 and continued upgrades v 10

What ELA 7 compatible version with win server 2012? if it is not compatible , then I have to replace the server 2008 win ,
what version 7 is compatible with server 2008 ??

thanks