I've verified that the the eglibc and glibc packages currently in proposed (precise/2.15-0ubuntu10.14, trusty/2.19-0ubuntu6.8, and wily/2.21-0ubuntu4.2) all trigger the reboot notification when installing/upgrading.
(Note that these glibc updates are in proposed for wider testing before being moved to sucurity/updates.)
I've verified that the the eglibc and glibc packages currently in proposed (precise/ 2.15-0ubuntu10. 14, trusty/ 2.19-0ubuntu6. 8, and wily/2. 21-0ubuntu4. 2) all trigger the reboot notification when installing/ upgrading.
(Note that these glibc updates are in proposed for wider testing before being moved to sucurity/updates.)