Nice! AT&T has finally announced the availability of the BlackBerry OS 4.5 for 8220, 8320 and 8310 models. Advanced Blackberry users have probably been running the latest firmware for quite a while now, as one can install the OS 4.5 build taken from any carrier by simply deleting the vendor.xml file in the phone's memory.
If you're still running the older version, download the new one here.
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