In the past, we've grouped OSCON sessions by programming verticals. As open source is now found everywhere--from the bottom of the programming stack to the very top--we're changing the way we organize these stories. We've adopted a more holistic approach, focusing on topics as a means to consider and solve critical, real-world problems. Here are the resulting tracks: Identity – An emerging and nuanced facet in the digital age and an exciting cross-functional track at OSCON 2015. Security – We'll explore security from top to bottom, offering frameworks and libraries, strategies for testing, and field reports of both security failure and success. Privacy – Computers remember our interactions at a level of detail the physical world never has. Do we want to be remembered, and for how long? Performance – From compilation and interpreter time to DOM manipulation, browser responsiveness, and network latency, we'll explore performance in all its facets. Mobility – We'll look at what it means to have a successful mobile game plan, from wearables to native apps. People – Making projects work requires communications, collaboration, and respect; we'll look at the ways a new generation of tools and approaches can help you work. Architecture – Software architecture is a massive multidisciplinary subject, covering many roles and responsibilities--and a key position in the success of any business. Scale – You’ve created a great web interface that is well designed, secure, and works well in a beta with 100 consumers, but how about 10,000, 1,000,000, or more? Storage – Find your way among the myriad choices for storing data and optimizing your systems for stability, distribution, convenience, and performance. Teaching – You want to share your best practices, projects, and tools with the world, but how do you go about sharing this knowledge? We'll examine learning theory and methods of teaching. Design – It's critical for success; learn how to incorporate design best practices from the beginning of your project rather and all the way through. Solve – Harness the power of math to manipulate, secure, and create data. Data – Let's tackle data’s continued, growing influence over the entire business world and how you can make it work for you. Foundations – A strong foundation in computational thinking, problem solving, and programming best practices makes for a successful programmer.