Need nSpire CX advice

[amidar]

Hello everyone,
since this community is still very active and i just acquired second nSpirte calculator (First one is nSpire CX II-T 5.3.0.564 with Ndless installed of course) i need some advice from You for this, new one.

Calculator is nSpire CX with :

OS version: 3.2.0.1212
Boot1: 3.0.0.99
Boot2: 3.1.0.16
HW version: E (P-0712E)

First greater than current OS version supported by Ndless is 3.6.0.546.

But on 3.x there are also :

3.9.0.463
3.9.1.38

and on 4.x series :

4.0.3.93
4.2.0.532
4.4.0.532
4.5.0.1180
4.5.3.14
4.5.4.48

So, my questions are :

1. Should i stay on 3.x or move to 4.x OS and why ?
2. Will i loose something eventualy switching from 3.x to 4.x OS ?
3. Do you have recomendation for some specific OS version of those supported by Ndless listed above or i should go with the latest supported in 3.x/4.x ?

Obviously i have the ability to chose what to do so, i need help from this community in order to choose the best option for this calculator.

[Adriweb]

Personally, I'd go to the latest 4.x supported by Ndless, so that you can have the maximum amount of features on all sides, from ti and the community.

[amidar]

Well, that was my first thougth but before i upgrade OS to the latest supported by Ndless, i just wanted to consult much more experienced from me.
Should i update straight to the latest, 4.5.4.48 or should i update gradually up to that version, or to the latest 3.x and then to that latest ?

[Adriweb]

You can go right ahead to the 4.x version. Gradual steps were initially required for the very first versions (1.x to later ones) due to boot updates with incompatibilities