Is it ok to update jailbroken iphone to ios6?

I have my iphone 3gs and it was jailbroken several years ago… Its software is still 4.2.1, i want to update it to ios6 cause i want to download games but i can't cause my ios/software is out of date… So frustrating… Will there be pros and cons if i will update my jailbroken iphone to ios6? Please tell me in advance or advices!

Hi, you can update to iOS 6 but need to do read this carefully.

Firstly, if you update, you will loose your current jailbreak, BUT, you can install a tethered one for iOS 6 and 6.0.1 as no untethered jailbreak has been released yet.

If you still want to upgrade software, DO THIS.

Back up your iPhone in iTunes (Most current version is iTunes 11, download this first!)

Then open up your iPod on the tab in the left hand side.

Next press RESTORE. This should upgrade you to iOS 6.

After your iPod has restored the software, which is all Apple and no jailbreak, for smooth iOS 6 compatability. If your happy with no jailbreak. Fine,

Read on on if you want your tethered jailbreak - means each time battery dead or switched off device you need to boot from PC. - then go to http://www.redmondpie.com/jailbreak-ios-6-with-official-cydia-on-iphone-and-ipod-touch-a4-using-redsn0w-0.9.15b1/

and follow the easy peasy on screen steps. On step 2. Do not download iOS 6 from the link there, just skip step 2.