Google today released the latest Android security update for Nexus devices. The update is available for all supported devices, including the Nexus 5 and 7 (2013), which were ineligible for Android 7.0 Nougat.
It's not at all clear what's going on with the Nexus 6 or the LTE variant of the Nexus 9, neither of which have a Nougat image available. It's common for Google to hold back updates on cellular-enabled tablets, but not for phones like the Nexus 6. Luckily, the Nexus 6 has today's security update available, but there's no news on the LTE Nexus 9 just yet.
Here are the announcements that are found in Google's release notes:
This bulletin has two security patch level strings to provide Android partners with the flexibility to more quickly fix a subset of vulnerabilities that are similar across all Android devices. See Common questions and answersfor additional information:
2016-10-01: Partial security patch level string. This security patch level string indicates that all issues associated with 2016-10-01 (and all previous security patch level strings) are addressed.
2016-10-05: Complete security patch level string. This security patch level string indicates that all issues associated with 2016-10-01 and 2016-10-05 (and all previous security patch level strings) are addressed.
Supported Nexus devices will receive a single OTA update with the October 05, 2016 security patch level.
The build numbers are as follows (via Android Authority): Nexus 6P (NBD90X), Nexus 5X (NBD90W), Pixel C (NRD91D), Nexus 9 (NRD91D), Nexus Player (NRD91D), Nexus 5 (M4B30X), and Nexus 6 (MOB31H). You can download the OTA image here and the factory image here.