---
tags:
  - work
  - ovn
  - upgrade
---
https://docs.ovn.org/en/latest/intro/install/ovn-upgrades.html

**Fail-safe upgrade procedure**
Pins ovn-controller version. Then upgrades databases followed by ovn controllers.
Used to upgrade between non LTS version or from LTS to non LTS etc.

**Rolling-upgrade**
From LTS to the next LTS.
Upgrades ovn controllers first, then upgrade databases.

[[Custom OVN debian packaging]]
[[Checklist for network node issues after rebooting]]