Major changes in this version:
Redesigned applications pool and its API, now it wouldn't create
more synchronous applications than threads available.
New non-blocking I/O mode
On-the-fly input content processing support
Improved url-dispatching for better support of RESTful services
Improved plugin support
Independent of context use of cache and session interfaces
Support of non-cookies based session handling
Integration of session handling with 3rd part technologies:
PHP, Java Servlet, Aps.Net and so on and contributed modules.
Major performance and memory use improvements.
New <% filter ... %> block specifying default escape filter.
Headers and Source separation by templates compiler. Special
thanks to Lee Elenbaas for the major contribution.
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