I've got Percona DB 5.6 on several 12.04 servers. On a few of them, I've been able to successfully upgrade to the latest version (5.6.17) using
apt-get update apt-get upgrade
On several others, apt-get update + upgrade tells me there's nothing to do. Why isn't it finding the most recent version?
Up-to-date version from servers that did update: "Server version: 5.6.17-65.0-587.precise-log (Ubuntu)"
Version from servers that are not updating: "Server version: 5.6.15-63.0-log Percona Server (GPL), Release 63.0"
I have confirmed that the following lines are in /etc/apt/sources.list on all servers:
deb http://repo.percona.com/apt precise main deb-src http://repo.percona.com/apt precise main
(and it had to work at some point, because they were all installed originally using apt-get)