can I update the OS from Apple to whatever is current w/o losing the JB?

My question now is, can I update the OS to whatever Apple sends so that I can get internet Radio back which requires OS 6, according to Apple, without losing the JB?

[quote="metropical"]

My question now is, can I update the OS to whatever Apple sends so that I can get internet Radio back which requires OS 6, according to Apple, without losing the JB?

[/quote]

Do you mean Internet Radio (iOS 6) or iRadio (iOS 7).    The 5.3 firmware is is 6 based.   There is no current jailbreak for 6.x firmware which is ios7 based.

internet radio

[quote="metropical"]

internet radio

[/quote]

That is working fine for me on one of my 5.3 jailbroken systems but not the other (no idea what is different). I have seen reports that others have encountered problems).