If you are on IntelliJ IDEA 12 and have not yet received a notification about a fresh update being available then go ahead and press ‘Check for Updates’.
IntelliJ IDEA 12.1.4 features about 70 issues fixed. You can see the whole list in the Release Notes.
Patches are available for a quick update from earlier 12.x versions or you can download the full installer from IntelliJ IDEA web site.
Develop with Pleasure!