The California-based company will release its latest software update to the public today.
According to Apple, the new update will take up less hard drive space, and offer several new features.
It includes a low power mode which will extend your battery life, as well as an improved passcode, smarter Siri searches and a news app.
The iPhone upgrade is compatible with older iPhones starting with the 4S.
The company is also releasing a software upgrade for the Apple Watch, and an upgrade for many iPad users.