Changes

Here we list major project milestones.

* Nov 1999: Alexander Tormasov visited Singapore and proposed a new direction to Sergey Beloussov: container virtualization. He formulated three main components: containers as a set of processes with namespace isolation, file system to share code/ram and isolation in resources.

* {{Quote|Indeed it was 1999 when our engineers started adding bits and pieces of containers technology to Linux kernel 2.2. Well, not exactly "containers", but rather "virtual environments" at that time -- as it often happens with new technologies, the terminology was different (the term "container" was coined by Sun only five years later, in 2004).|Kir Kolyshkin|http://openvz.livejournal.com/49158.html}}

* Feb 2000: office at MIPT is established, 5 people started working on the first mockup version of Virtuozzo (namespaces, isolation, vzfs).

* Sep 2000: Andrey Savochkin from MSU started working on User Beancounters.

* Dec 2001: Virtuozzo for Windows project started

* Dec 2004: Initial release of Virtuozzo for Windows <ref>[http://www.odin.com/news/id,7095 SWsoft Announces Virtuozzo for Windows Controlled Release]</ref>

* 2005: SWsoft created the OpenVZ Project to release the core of Virtuozzo under GNU GPL. <ref>[http://archive09.linux.com/feature/51173 SWsoft offers free, open source version of Virtuozzo]</ref>

* 2005: SWsoft acquired a hosting/development company "Express" with their own containers for FreeBSD (it was later dropped due to small number of clients).

* Jan 2006: Rebase to kernel 2.6.15<ref>[http://lwn.net/Articles/169972/ OpenVZ Project Releases Beta for Latest Linux Kernel]</ref>

* Aug 2006: OpenVZ is available in Debian Linux <ref>[https://lwn.net/Articles/194259/ Debian Linux Adopts OpenVZ Virtualization Software]</ref>

* Nov 2006: OpenVZ adds live migration capability <ref>[https://lwn.net/Articles/209377/ OpenVZ adds live migration capability]</ref>

* Mar 2007: Port to RHEL5 kernel<ref>[https://lwn.net/Articles/225990/ OpenVZ software for Red Hat Enterprise Linux 5]</ref>

* Sep 2007: CentOS-based OpenVZ Live CD<ref>[http://lwn.net/Articles/251968/ OpenVZ CentOS Live CD]</ref>

* Jan 2008: Templates for Ubuntu 7.10<ref>[http://lwn.net/Articles/264872/ OpenVZ Virtual Appliance for Ubuntu]</ref>

* Apr 2008: Rebase to kernel 2.6.25<ref>[http://openvz.livejournal.com/21817.html 2.6.25 is out; memory controller and network namespaces are in]</ref>

* Oct 2008: Port to ARM <ref>[http://openvz.livejournal.com/24651.html OpenVZ ported to ARM (Gumstix Overo)]</ref>.

* Aug 2009: Parallels company is in Top 10 Linux kernel contributors with their patches for Linux containers. Our contributions to the kernel at that time was PID, IPC, and network namespaces, with the last one being the biggest.<ref>[http://www.linuxfoundation.org/sites/main/files/publications/whowriteslinux.pdf Linux Kernel Development Report, Aug 2009 update]</ref>

* Jul 2011: Pavel Emelyanov sent initial RFC and code<ref>[http://lwn.net/Articles/451916/ Checkpoint/restore mostly in the userspace]</ref>. The idea of CRIU of course came up earlier when we figured we (or anyone else, for that matter) can't possibly merge in-kernel checkpoint/restore. Re-implementing it in userspace looked crazy for everyone including me, and Andrew Morton's and Linus Torvalds' initial reaction was similar ("some crazy russians").

* Sep 2011: Cyrill Gorcunov made <ref>[https://github.com/xemul/criu/commit/523de236244946a0de127dfc9954369963819ef7 First commit to CRIU (Checkpoint and Restore in Userspace)]</ref> first commit to CRIU project

* Oct 2012: [http://wiki.openvz.org/Vzctl_for_upstream_kernel vzctl for upstream Linux kernel] is available

* May 2013: OpenVZ maintenance partnership <ref>[http://openvz.livejournal.com/44228.html Announcing the OpenVZ Maintenance Partnership]</ref>

* Dec 2014: Parallels announced merging OpenVZ and Parallels Cloud Server into single common open source codebase<ref>[http://openvz.livejournal.com/49158.html OpenVZ past and future]</ref>

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