Not able to research "Gate" and "Tank"

[G_amma]

0.10.12 (Build 10773, win64)

I am not able to research the wall gate. When i start a new game i already know how to build walls, maybe that is the reason i can not research "Gate" since i am not able to research "walls"?
On wiki the tech tree says that you have to research walls and military 2 ( I think) before i can research "gate" but i dont get neither of "walls" and "gate" as option.



I am also not able to research the "tank"

[DaveMcW]

Turn on experimental updates.

[kovarex]

Hello, these features are in the 0.11.x experimental release, you can turn the experimental updates in the Options->Other, but keep in mind, that experimental version doesn't have fixed all the bugs yet, so if you want to avoid crashes and bugs, It is better to wait until the 0.11 gets stable.