Squeeze is the code name Debian gives to the current stable release, wheezy is the name given to the current unstable release
Squeeze is the code name Debian gives to the current stable release, wheezy is the name given to the current unstable release
both are stable releases from debian.
quick overview: oldstable = squeeze; stable = wheezy; testing = jessie; unstable = sid
(3.1.9 What happens when a new release is made?)
source:
http://www.debian.org/releases/
http://www.debian.org/doc/manuals/debian-faq/ch-choosing.en.html