The package postgis was updated on apt.postgresql.org:
Old status:
postgis | 2.1.0-2.pgdg+1 | sid-pgdg | source
postgis | 2.1.0-2.pgdg70+1 | wheezy-pgdg | source
postgis | 2.1.0-2.pgdg12.4+1 | precise-pgdg | source
New status:
postgis | 2.1.0-4.pgdg+1 | sid-pgdg | source
postgis | 2.1.0-4.pgdg70+1 | wheezy-pgdg | source
postgis | 2.1.0-4.pgdg12.4+1 | precise-pgdg | source