Additional $250 million sees the Silicon Valley start-up's value rise to $4.5 billion
Group CTO Ed Conolly explains the role of data infrastructure in meeting the demand for clean energy
With open source filling mission-critical niches everywhere, we look at the drivers
They'll be treated as 'equal collaborators not a resource to be mined' Google promises .
'A positive change that can help ensure small open source communities aren't acting as free and unsustainable R&D for tech giants' says CEO Jay Kreps