On 2016-05-24, nginx 1.9.11 mainline was released. Reproducible: Always
PR submitted: https://github.com/gentoo/gentoo/pull/1650
Now in tree, https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=9d8b4adb72f5912b8c121bdda6ffee72e08926d7 Remember that you have to select the "mainline" slot again which was removed when stable and mainline both share the same version number. Thanks for the report!