Walter Wilson introduces Axiomatic, a minimal pure-specification logic language with meta-language capability based on the idea that the external behavior of a program can be defined by an infinite set of symbolic expressions that enumerate all possible inputs, or sequences of inputs, along with the corresponding outputs. The language is just a formal system for defining these symbolic expressions
Andreas Rumpf introduces Nimrod, a statically typed programming language supporting unhygienic/hygienic and declarative/imperative AST-based macros. The talk focuses on metaprogramming capabilities.
Daira Hopwood introduces Noether, an experimental language meant to write more secure, robust and efficient programs, being built on multiple layers satisfying different levels of symmetries.
Gilad Bracha explains how to distinguish FP hype from reality and to apply key ideas of FP in non-FP languages, separating the good parts of FP from its unnecessary cultural baggage.
Clayton Bauman introduces Babel, an open source language implemented in C, targeted for cloud computing. Other features: interpreted, untyped stack-based, postfix, supports arrays, lists and hashes.
Miles Sabin and Edwin Brady exemplify what can be done with a language with dependent types, what are the limitations and what could be done in the future when dependent types reach maturity.
Mike Falanga shows several C# and F# solutions to common programming problems, comparing how well each language enhances the ability to draw accurate conclusions about the code.
Daniel Gregoire introduces Gershwin, a stack-based, concatenative programming language with a Clojure runtime that targets the JVM.
Bjarne Stroustrup discusses features that might appear in C++14: braces for copy initialization, return type deduction in functions, generic (polymorphic) lambdas, user-defined literals, etc.
Creighton Kirkendall discusses how polymorphism is implemented in Clojure, Ocaml, Haskell and Scala.
Matthew Flatt introduces Racket, an extensible programming language useful to create new syntactic forms and construct entirely new programming languages.
Rob Pike explains how Google designed Go to address major development issues they encounter while using other languages: long build times, poor dependency management, lack of robustness, etc.