Wow! Thank you for that information!mkx
The mentioned devices are not all the same architecture: hAP AC and hEX PoE are both MIPSBE, so it is RB951G, but hEX (the current one - RB750Gr3) is MMIPS and RB3011 is ARM. All in all that's 3 distinct sets of files that you have to provide.
I just want to let everyone know, that v7 is progressing pretty good this year, and most core functionality is usable. Some more difficult parts need to be done and we can release a public beta.