Universal Robots+

Python version E-series

In this post: What is the difference between CB3.1 and CB3.0
I readed that:

1. Debian version
a. CB3.0: Debian GNU/Linux 5.0
b. CB3.1: Debian GNU/Linux 7.8
2. Java version
a. CB3.0: 1.6
b. CB3.1: 1.6
3. Python version
a. CB3.0: 2.5
b. CB3.1: 2.7

But what about E series? what version does it runs?