GrapheneOSGoogle recently informed OEMs of greatly reduced security support for older releases of Android. For the vast majority of discovered vulnerabilities, only Critical severity issues deemed to be an imminent risk will be backported at all and only to the most recent 2 major yearly releases (16 and 17).
GNU social JP is a social network, courtesy of GNU social JP管理人. It runs on GNU social, version 2.0.2-dev, available under the GNU Affero General Public License.
All GNU social JP content and data are available under the Creative Commons Attribution 3.0 license.