If you go to http://wiki.postgresql.org/wiki/Apt you will find an abundance of packaged, precompiled and ready to run versions of postgres servers as well as clients and a few other tools. Additionally, it has instructions on how to automatically download these items and install them, if your distribution of linux is on their list.
from the wiki...
Currently, we support
- Debian 6 (squeeze), 7 (wheezy), 8 (jessie) and unstable (sid) 64/32 bit (amd64/i386)
- Ubuntu 10.04 (lucid), 12.04 (precise), 14.04 (trusty), 14.10 (utopic) 64/32 bit (amd64/i386)
- PostgreSQL 8.4, 9.0, 9.1, 9.2, 9.3, 9.4
- Server extensions such as Slony-I, various PL languages, and datatypes
- Applications like pgadmin3, pgbouncer, and pgpool-II
Hopefully this info will help many of you to get the version of postgres you want.
