Definitions
toward the source or against the current
Word origin
From up- + stream.
Used in a sentence
“Input entry is upstream of input validation in the runtime process.”
“The outage was caused by an upstream error in a payments library.”
“You can also check the upstream and/or Debian bug trackers for open and closed bugs and the upstream revision history or newer release(s).”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Sourceward”8 letters
Not quite right?
"Search similar patterns."
U_______