RIM has released an official update for the Telus BlackBerry Curve 8330, this is OS version 4.5.0.160 for the BlackBerry Curve 8330. As this is an actual official version and not a leaked online version make sure to back up your device just in case something goes terribly wrong.
Not with Telus? You can still install this update on your Bell/Virgin device by deleting the vendor.xml file
[Via: IntoMobile & CrackBerry]