I saw that from OpenVZ.org made updates to the templates. Now I`m testing the new templates to be sure they are not for Virtuozzo 7 only and they work on OpenVZ 6 also. For the moment what I see is that all the CentOS 6 versions works ok, and they are upgraded to 6.9 (Final) so when you install a container with CentOS 6, the user don`t need to wait 1h for "yum -y update", but most likely 1-15min depending on your INet connection and your server.
By the way all(2) Gentoo templates will be removed. They are old, no support for them, too much work to fix the networking and ... it sux.
I found a Proxmox release of Gentoo 03/05/2017, but it makes problem with extracting stage3 to the container so it will be dismissed also.
Also got Ubuntu 17.04 - networking problem, OpenSuSE 42.2 - install problem. Got to test Alpine Linux 3.3, 3.4 and 3.5, Arch Linux base from 2017 and if they work will be added to the module.
Stay tuned.