The site apt.postgresql.org is a great resource for those who live in the Debian derived world. It keeps up to date with the latest postgresql packages and has a whole team dedicated to creating these packages. Of course, this is the Open Source world so not everyone agrees 100% with the way things are done in this project. As I noted here, there are some issues.
These issues are not to detract from otherwise excellent work but a note to those who use the repository to look for further problems. I also have a video displaying specifically what the issues are, here.