Instagram CEO Kevin Systrom gives full credit to Snapchat for Stories format, and looks at how tech companies build on each others' innovations  —  The one thing you never hear in Silicon Valley is an entrepreneur admit they copied someone else.  Yet there in the headquarters of Facebook …

Every Mac in Apple's current lineup except the 12-inch MacBook is outdated; the 13-inch MacBook Pro was last updated in June 2012 but still costs $1100  —  One thousand, five hundred and fourteen days.  Or: four years, one month, and twenty-four days.  —  That's how long it's …

Chris Urmson, CTO of Google's self-driving car project, announces he is leaving after seven years  —  A key executive of Google's self-driving car project is leaving the company.  Chris Urmson, who serves as CTO and technical lead, announced that he was leaving after seven years.

Sources: Apple acquires Seattle-based machine learning startup Turi for around $200M  —  Machine learning and artificial intelligence startup Turi has been acquired by Apple in a deal characterized as a blockbuster exit for the Seattle-based company, formerly known as Dato and GraphLab, GeekWire has learned.

Sources: Wal-Mart's $3B acquisition of Jet.com would require Jet founder Marc Lore to head the retailer's online division for several years  —  Marc Lore said to stay to run retailer's e-commerce division  —  Purchase for $3 billion would help Wal-Mart challenge Amazon

Disney launches its own messaging app, Disney Mix, aimed at kids and families  —  Disney today is wading into the mobile messaging marketwith a new chat applicationcalled Disney Mix, aimed at kids, tweens and families.  While the app will compete to some extent with popular messaging clients like WhatsApp …

FTC to crack down on sponsored celebrity social media posts that aren't explicitly disclosed  —  The agency says brands and the social media stars who promote their products need to be more transparent about sponsored content  —  Snapchat star DJ Khaled raves about Ciroc vodka.

Inside DARPA's first Cyber Grand Challenge, which pitted bot against bot to exploit security holes  —  Last night, at the Paris Hotel in Las Vegas, seven autonomous bots proved that hacking isn't just for humans.  —  The Paris ballroom played host to the Darpa Cyber Grand Challenge …

US Copyright Office sides with cable companies on set-top boxes, says proposed FCC rules may encourage piracy  —  Set-top box rules could enable piracy, copyright official warns.  —  The United States Copyright Office has sided with cable companies in their fight against a Federal …

Strava adds Beacon safety feature, letting premium users share a live workout with up to three contacts  —  Your safety contact can see where you're working out  —  Strava, the maker of a popular cycling and running app that is one of the few holdouts in an era of health and fitness acquisitions …

Filing: Airbnb raising $850M, sources say at a $30B valuation, bringing total raised to about $3.2B  —  The home-sharing company Airbnb Inc. is raising $850 million, according to a disclosure filed with the state of Delaware.  —  The equity round values the San Francisco-based company at $30 billion, people told Bloomberg in June.