This scripting language is similar to the wiki markup used for articles on this site. RuneScript is parsed into Java for the computer to read just as certain syntax in MediaWiki markup is translated into HTML (e.g. [[page]] changes to the HTML code page). The minor updates are usually for introducing a new map and adding new NPCs, and for these updates, a RuneScript file is added into the program. The major updates are for the source code, which is usually for making large changes such as introducing new areas in RuneScape, new skills, or for bug fixes.