upstream

Definitions

• in a direction against the flow of a current or stream of fluid (typically water); upriver
• (oil industry) involving exploration and pre-production rather than refining and selling
• (computing) in the direction from the client to the server
• (open-source software) maintained, owned or associated with the original developers of the given software; in contrast to a modified version downstream
• (biology) towards the leading end (5′ end) of a DNA molecule