In case you missed CppCon or attended but missed a few sessions (or want to review), videos for most of the talks are available on You Tube. There is plenty there for developers of all experience and temperament including:

• C++ in Microsoft Office: How Microsoft Uses C++ to Deliver Office Applications Across Windows, Apple, Android, and Web Platforms (part II), Zaika Antoun
• From the Dropbox Trenches: A Deep Dive into Two Cross-Platform Mobile Apps Written in C++, Steven Kabbes and Tony Grue
• Multiplatform C++, Edouard Alligand
• Lock-Free Programming (or, Juggling Razor Blades) (part II), Herb Sutter    
• Data-Oriented Design and C++, Mike Acton
• Modernizing Legacy C++ Code, James McNellis and Kate Gregory
• Quick Game Development with C++11 / C++14, Vittorio Romeo
• 0xBADC0DE, Jens Weller
• STL Features And Implementation Techniques, Stephan Lavavej

Presentation Slides, PDFs, Source Code and other presenter materials are available on GitHub.