The updates are provided by the distribution maintainers. You can usually update through your distro's package manager (if it has one). Major updates may be made only between releases and you may have to completely reinstall to update.
The CentOS team provides periodic updates to their linux distribution and aims to be 100% binary compatible. CentOS has been supported for 7 years via security updates.
Linux is an ever-improving operating system. Each kernel release adds new features and device support. Most releases of Linux distros incorporate these changes, as well as updates to programs, bug fixes, and security updates.
A Linux patch management tool is software that helps automate the process of finding, downloading, testing, and installing patches or updates on Linux systems. These patches fix security vulnerabilities, bugs, and performance issues to keep systems stable and secure. Patch management tools make it easier for IT teams to manage multiple Linux servers or endpoints from one place instead of updating each system manually. A good example is Scalefusion MDM, which offers Linux patch management software to help businesses streamline updates, schedule patch deployments, and ensure all Linux devices stay compliant and protected.
Patches are usually released as updates to the affected packages.
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A service Pack is just a load of updates to any software (Windows or Linux) for computers.
World of Tanks is not officially compatible with Linux. It has been reported to work acceptably under Wine, but this can change as updates are made to the game.
Red Hat Linux was discontinued in 2003, and replaced with "Red Hat Enterprise Linux", and the free, home-use version "Fedora". Updates were discontinued for Red Hat after 2006.
A shell in Linux is the interpreter that provides a commandline interface (CLI). There are many kinds of shells.
Google has stated that it has become too difficult to maintain parity on the Linux version. It will still work but Google will no longer be offering updates for it.
The Linux Professional Institute is a professional organisation for those who are Linux Professionals. It is a non-for-profit organisation that provides independent professional certification.
For linux web hosting i would suggest www.Rackspace.com. They have great support 24/7.