The process is as simple as it was earlier you just need to have the latest version of iTunes and a data cable for your windows system and the Mac users will obviously have the iTunes so they just need to connect their iPhone with the computer and launch this application. In the screenshot you can see the blue buttons which can help you to download the installer and then rest is the same procedure which you have been following all the time. Once you launch the installer your iPhone will restart few times and the starting logo will change. Before starting up with the jailbreak, try to do the following-
Remove the Passcode lock as it always troubles the jailbreak process.Take the backup of your iPhone because you might not know that what could go wrong.
Just follow the instruction as the installer says and finally you will have the cydia icon on your iPhone or iPod or iPad. Please let us know if you face any problem while doing the jailbreak.