Release Announcement: PARLEY version 0.3 PARLEY is a library for writing Python programs that implement the Actor model of distributed systems, in which lightweight concurrent processes communicate through asynchronous message-passing. Actor systems typically are easier to write and debug than traditional concurrent programs that use locks and shared memory. With version 0.3, PARLEY now supports the Greenlet execution model (http://codespeak.net/py/dist/greenlet.html). Greenlets are lightweight threads, similar to the tasklets supported by Stackless Python; unlike tasklets, they do not require a special version of Python. PARLEY also supports tasklets and traditional native threads, and it provides the ability to switch between these modes of execution without substantial code changes. Version 0.3 also includes various bug fixes, additional features, and documentation improvements. Code samples, documentation, and source code can be found at the PARLEY home page: http://osl.cs.uiuc.edu/parley/ PARLEY is licensed under the LGPL. -- Jacob Lee <artdent@freeshell.org>