CUPERTINO, Ca. – A week after launching iOS 9, Apple has fixed the first set of bugs for the new mobile software, led by the Slide to Upgrade that had caused devices to freeze when attempting to install the new operating system.

In the release notes, Apple mentions fixes for three other issues, including one in which alarms and timers could fail to play, another in which pausing a video in the Safari browser or Photos feature might distort the paused frame and one more in which users with custom Access Point Name setups might lose data over a cellular connection.

Adoption of iOS 9 is breaking records, according to Apple. On Monday, the company said that the latest version of its mobile software was already on more than half of all iPhones, iPads and iPod Touches.

The iOS 9 software offers a number of enhancements and new features. For instance, the Siri voice assistant can now remind you of calendar appointments, while the Notes app lets you create checklists, draw sketches and add attachments. The Apple Maps app offers more mass-transit information for some major cities.

In addition, iOS 9 promises better battery life with a low-power mode that kicks in when you run below a 20 percent battery charge. A new split-screen feature lets you view two apps side by side if you’re using the iPad Air 2 or later iPads.

You can update your iPhone, iPad or iPod Touch to iOS 9.0.1 directly through the Software Update screen under Settings or by launching iTunes, selecting your device and then clicking on the Update button.