Congrats
![Cheesy :D](http://bobthepleo.com/forums/Smileys/custom1_orange/cheesy.gif)
The best thing to do is wait for at least one battery charge before updating since some new Pleo's are already running the 1.1OS (the latest OS). Once your Pleo is up on their feet for a while try rubbing their chin and see if they sing to you
![Smiley :)](http://bobthepleo.com/forums/Smileys/custom1_orange/smiley.gif)
(You may have to rub the chin for a while) If they sing they are already updated
![Smiley :)](http://bobthepleo.com/forums/Smileys/custom1_orange/smiley.gif)
Alternatively hold the rear and chin sensors and assist your Pleo to sit when they pull their feet together, if they move around while in the sit position then they are updated.
The battery lasts from 1 to 2 hours depending (it seems) on your location, and the activity level of your Pleo. (The location difference appear to be caused by different voltages of power used in different countries.)