Update SA from 3.0 to 3.1

Maybe a stupid question, but how can i update SA to 3.1 ?

I remember having been prompted for updates by SA in the

past.

credentials

Sencha Architect

version:

3.0.4.1386

channel:

3.0.1-stable

platform:

1.3.0.803

cmd:

4.0.4.84

framework:

Sencha Touch 2.3.x

thank you !

Update SA from 3.0 to 3.1