Sometimes address may be changed automatically after a software update.
However, the old address usually remains active within certain timeframe to make sure that all preceding transactions are commited.
It is recommended to check your current address on your Account page regularly and start using your new address once you notice it has changed.
Old address may be deactivated eventually. You might be notified about it via email, please stay in touch.
In case it has been a while and you still don't see your funds on the account, please check out the following article: Where is my deposit?.