As in the last weeks there were some critical security issues were found as in the Linux kernel

as in the Android System itself:

So I decided to update the (unofficial) Android Nougat releases for both Nexus 7 (2012) versions (Grouper and Tilapia). Fortunately the kernel of our Android Device is already so old that many of the security issues found do not apply but e.g. CVE-2026-46259 does. Also issues in the framework component and the bluetooth stack are fixed with Android (2026/06/05).

You can find the links to the downloads on XDA and the sources on my github repository