This update does not address the memory issue or the Application management issue that Lollipop 5.0 has. This is just a small software update to Lollipop 5.0.2. Not sure how big ATT update is, but the T-Mobile version was 177MB and released via OTA before the S6 went on sale April 10th, and Sprint has just released there's at 122MB. According to Samsung this was to address the Fingerprint scanner problems, update many of the Lollipop applications for better performance, as well as other tweaks. Samsung has released their Lollipop 5.1.1 update to all major phone carriers and have stated that they have finally fixed the memory and app management issues along with improved battery life with 5.1.1. As to when this update is released via U.S. carrier's has yet to be announced, but rumor has it Galaxy S6 owners could see it as early as June sometime.