Hacker News on 9 January 2017

• Atlassian acquires Trello for $425M
• Software Developers Should Have Sysadmin Experience
• From OS X to Ubuntu
• Stanford Unsupervised Deep Learning Tutorial (2014)
• Yahoo SEC Filing: Name change to Altaba Inc and director resignations
• Bringing Wide Color to Instagram
• From Python to Numpy
• Just how smart is an octopus?
• H-1B Visas: U.S. Lawmaker Re-Introduces Bill to Tighten Rules
• 20 years as a Debian maintainer