Hangouts for Android is receiving its first Play Store update - on a staged rollout basis - today, fixing a few notable bugs, and promising enhanced performance in unspecified ways. Here's the rather short changelog:

1.0.2
● Fixed a problem where you could receive two notifications for a message: one from Hangouts, one from the old Talk app.
● Audio issues in video calls on some Android 2.3x (Gingerbread) devices, including the Droid Charge, should now be resolved.

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