Thanks for that link. It sounds great and I have learned some useful stuff that is already in my 2.7 version and that I haven't noticed.
layer grouping - great great great, finally! I will use it right away. And as mentioned, the best is, we have it already and don't have to wait until 2.8

calculations in text fields - nice feature, I have to pull my calculator very often
vector layers - sounds very interesting. Let's see how this works out but it might be a perfect tool.
new hotkeys - we have already discussed this and not all of them make me happy. But I will get used to it. But one thing annoys me: Why isn't there a hotkey to show the layer mask? It's one of my most important steps. I can Ctrl-click the mask to enable/ disable it. But I can't e.g. Shift-click it to show the mask. It should be so easy to include and it would make my life so much easier

Or have I missed something, is it already in there?
The rest is not of the greatest importance to me (apart from the GEGL inclusion but that of cause will not touch us until 3.0)...