Upstream (software development)

≡Description

Upstream refers to the original source of a software package, that is, the place where the source code is developed and maintained before being packaged and distributed by different operating systems or distributions. This term is fundamental in the world of free and open-source software, as it implies that the software can be modified and redistributed. In the context of software projects in general, 'upstream' refers to the developers who create and maintain the software, while distributions or derivative products are responsible for packaging, testing, and distributing stable versions of that software. The relationship between upstream and the distributions is crucial, as updates and improvements in the original software must be integrated into the packaged versions to ensure that users have access to the latest features and security fixes. Additionally, the term is also used in the context of collaboration between different software projects, where developers can contribute directly to the original source code, thereby improving the overall quality and functionality of the software.