Google today made the February security patch available to its Nexus and Pixel devices. First and foremost, the patch closes a number of security holes in the code that left all the handsets vulnerable to certain types of attacks. Google plugged up issues in the kernel, framework, system, and in select Qualcomm components. The update also provides a number of feature updates specifically for Pixel 2 devices. For example, it boosts Bluetooth call quality, WiFi uplink performance, and battery performance. It also improves the camera, Android Auto, app compatibility, mobile data, and audio switching, and provides stability fixes. Last, as already mentioned, the February patch turns on the Pixel Visual Core in the Pixel 2 and 2 XL for better photography. The Pixel Visual Core allows the Pixel 2 devices to make use of advanced machine learning to improve HDR+ photography. The primary benefit is that third-party apps will be able to take advantage of Google's imaging technology to boost results. As such, Instagram, WhatsApp, and Snapchat are among the first to tap into the Pixel Visual Core. People who use the cameras within these applications should see better performance, particularly with respect to balanced exposure in high-contrast environments. In addition to HDR+, the Pixel Visual Core also runs RAISR for more detail in zoomed shots, and ensures there's zero shutter lag so the phone captures pictures the instant users press the button. The update is now live and rolling out to devices.