Verizon has started rolling out the software update it promised earlier this October -- one that adds Samsung Pay to the Galaxy S6, S6 Edge, S6 Edge+ and Galaxy Note 5. A Reddit user has posted a snapshot of an email sent to Samsung reps at Best Buy confirming the upgrade, while Android Central's Andrew Martonik has already installed it on his Galaxy S6. The mobile payment app arrived in the US for other carriers in September, but Big Red was a bit late to the party. Take note that it only works with MasterCard, Visa or AMEX issued by a major bank, though, such as Citi and Bank of America. Even if you couldn't care less about Samsung Pay, you may still want to download that update when you get it. It also patches up the Stagefright Android vulnerability, which gives hackers access to your phone just by sending an infected MMS.