As for the redstone update it would be great to have that stuff fixed.
The numbers of the bugs listed here equal the numbers in screenshot 1.

1. Redstone dust / machines on top of stairs can't be powered by torches underneath (maybe that's intented because of that missing part?).

2. Single Redstone wires don't visually connect to wires on top of stairs.

3. Redstone wires connected with wires on top of stairs aren't visually connected on the side of the stair ...
3a. ... while they should, at least when the back of the stair is adjacent to the redstone wire (like if it was a full block).

3. Redstone wires on top of stairs visually connect to redstone on blocks below while the wire on the block below does not.

4. Redstone signals can't get sent from stairs to lower blocks while they can be sent from blocks to stairs above.

5. Redstone torches can't be placed on the back of stairs