@finlaydag33k Welcome to the Rockstor community.
As @Fredrik points out the testing channel updates is probably the one for you then.
Also I would just like to point out that this is not a “Licence” choice but an ‘updates channel subscription’ choice. A detailed explanation for why this was put in place and how both channels helps to support Rockstor development is available in the Official Docs under the Update Channels section.
Rockstor is predominantly GNU GPLv2 Licenced along with a mixed bag of js library licencing and the stable channel subscription is to help ensure the whole Rockstor endeavour is more financially sustainable; at least that’s the plan .
Please see the following forum discussion that lead to the current arrangement:
Hope that helps.