I use the old version of the operating system very stable, is it necessary to upgrade?

I am using the old version of the operating system is very stable, it is necessary to upgrade it-general Linux technology-Linux technology and application information, the following is to read details. The so-called version refers to the version published by the publisher, such as Fedora 15 and Ubuntu 11.10.

First, we can start from a perspective: Why is a new version available? In addition to commercial considerations, the new version includes kernel and system updates, which may be a feature addition, incorrect correction, or security consideration, it can provide us with more beautiful interfaces, more convenient tools, more powerful functions, or a safer environment.

Back to the question: if a version of the system runs stably, it can be upgraded unless a security vulnerability exists! However, it is a pity that common services often discover new vulnerabilities. At this time, we can upgrade this part without the need to upgrade the entire system. In addition to upgrading the system, putting important services in the firewall is also a good practice.