What are website version numbers?
When developing a website, various software libraries are used to achieve functionality or automate processes. These libraries each have their own version number. In order to keep the website compatible with the most current standards during development, it's sometimes necessary to upgrade the software libraries.
To find out whether the software libraries need to be upgraded, it's crucial first to check the current version of the software.
Not only software libraries have their own version number. The server environment is also built up out of software with its own version number, for instance Apache of IIS.