Google today said it will roll out monthly security updates for Nexus devices.

Google has already been notifying Android manufacturers each month about platform and security issues, but "from this week on, Nexus devices will receive regular OTA updates each month focused on security, in addition to the usual platform updates."

The first of those updates started today with the Nexus 4, Nexus 5, Nexus 6, Nexus 7, Nexus 9, Nexus 10, and Nexus Player , with fixes for several bugs, including Stagefright. Google will also release the same fixes to the public via the Android Open Source Project (AOSP).

"Nexus devices will continue to receive major updates for at least two years and security patches for the longer of three years from initial availability or 18 months from last sale of the device via the Google Store," Google said in a blog post.

Stagefright, revealed last week, is a bug in Google's mobile operating system that can give hackers access to people's phones just by sending a text. The vulnerabilities are hidden in an Android media library known as Stagefright, and about 95 percent of Android devices, or about 950 million smartphones, are vulnerable, according to Zimperium researcher Joshua Drake.

Zimperium reported the vulnerability to Google, which the Web giant applies to internal code branches within 48 hours. But a full fix required an over-the-air firmware update. Given the state of Android fragmentation, it was unclear how long that would take.