On 18 December 2015 at 09:34, Дмитрий Тесёлкин <teselkin.d at gmail.com> wrote: > Hi all, > > I'm trying to clarify the security updates policy for older CentOS-7 > releases. > > There is a number of servers I'm supporting that are running CentOS-7 1503. > When 1511 was released several days ago I've tried to upgrade several of > those, but failed. I've got some strange errors with e1000 virtual NIC > being restarted frequently with 'tx unit hang' errors. Anyway, it's not the > thing I'd like to discuss here. > > What I'd like to know is the answer to the question "will there be any > security updates for CentOS-7 1503, and how long"? I was searching on a > wiki, but couldn't find anything clear enough. What I've found is the > phrase in 1511 announcement letter > > This release supersedes all previously released content for CentOS > Linux 7, and therefore we highly encourage all users to upgrade their > machines. Information on different upgrade strategies and how to > handle stale content is included in the Release Notes. > > This makes me think that there will be no security updates for 1503 and the > only way to get them is to upgrade to 1511, but I'd like to find any proof. > Unfortunately, there is nothing about this in Release Notes :( > > > Keep this in mind ... there is only 7 ... there's no point release to pay attention to. That date (or point release) is just a point in time milestone and carrying out a yum update will continue you along the EL7 path (and /etc/centos-release will be updated in the process as just another update). The 'older' CentOS release is not 7.0 or 7.1 ... it is 6 or 5 ... similarly 6.6 doesn't get an 'update' as such with yum update just providing the packages in the 6.7 milestone (+ updates). If you do have a specific need to stay on a particular point release for some arcane and silly reason Red Hat provides a specific z-stream support subscription their sales team can talk to you about.