http://www.erlang.org/download_release/17
Some of the highlights are: •Optimized handling of processes in the VM ◦New internal process table allowing for parallel reads and writes ◦optimized run queue management ◦optimized process state changes •"Non-blocking" code loading •New internal port table, and rewrite of scheduling of port tasks. •Dynamic allocation of port structures, allowing the default for maximum ports to be raised to 65536 (from 1024) •Support for UTF-8 encoded Unicode characters in source files. •Inets application: The http client now support HTTPS through a proxy •Asn1 application: Major cleanup of back ends and optimizations of mainly decode for PER and UPER. •Support for parameterized modules (but an alternative solution provides) and packages removed •All built in functions BIF's (even if they are implemented in C as part of the VM) are now visible in the source code of the module they belong to, including their type specs. •The Wx application now compiles and is usable with the unstable development branch of wxWidgets-2.9. This means that wx can now be built on 64 bit MacOsX as well.