Introduction
A Proxmox update keeps a node up to date with the latest stable packages, patches, security vulnerabilities, and the introduction of new features. Each node checks for the latest updates and alerts administrators through e-mail if there are any available updates. It is vital to keep all the Proxmox nodes up to date, especially when security patches are released. Proxmox developers are very quick to close known vulnerabilities through updates.
The number and nature of updates varies depending on the subscription level. For example, a free version of Proxmox without subscription receives the most up-to-date stable updates, while a node with a subscription level receives updates that are not so cutting edge and goes through additional layers of testing.
This is not to say that a node without a subscription is not as stable as a paid version. Both offer a very high level of stability and performance. The only difference is the delay that allows subscribed updates to receive bug fixes...
