Versionkontrolsystemer

Versionkontrolsystemer, also known as version control systems, are tools used to manage changes to source code and other collections of information. They allow multiple people to work on a project simultaneously without overwriting each other's changes. Version control systems keep track of every modification to the code in a special kind of database. If a mistake is made, developers can turn back the clock and compare earlier versions of the code to help fix the mistake while minimizing disruption to all team members.

There are two main types of version control systems: centralized and decentralized. Centralized version control systems, like Subversion (SVN), use a single server to store all versions of a project. This means that all team members must connect to this server to get the latest version of the code or to commit their changes. Decentralized version control systems, like Git, allow each team member to have their own local copy of the entire project history. This makes it easier for team members to work offline and for projects to be forked and developed independently.

Version control systems also provide other useful features, such as branching and merging. Branching allows developers to create a separate line of development. This is useful for adding new features or experimenting with changes without affecting the main line of development. Merging allows changes made in different branches to be combined into a single branch.

In summary, version control systems are essential tools for software development. They help manage changes to code, allow multiple people to work on a project simultaneously, and provide features like branching and merging to facilitate collaboration and experimentation.