Why my blender 2.8 user interface ( linux ) like 2.79 , still old interface, not new?

Support Basics & Interface
1

Why my blender 2.8 user interface ( in Linux ) like 2.79, still old interface, not new?

Blender_28_Linux
Blender_28_Linux1257×827 208 KB

Shouldn’t it be like this?

blender_28_windows
blender_28_windows700×377 38 KB

I already loaded factory settings, delete userpref.blend starup files, but no use.
Why?

Another problem is, if I click Object Data page in Properties editor, Blender 2.8 will quit.
Why？

— EDIT —
It’s very early version.
I should download the latest version.

2

From where did you download your copy of 2.8?

3

It just seems like a very early version. It used to look like that early on.

Go grab a fresh copy from builder.blender.org .

4

Thank you very much. I got it.